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The document discusses different types of permanent plant tissues. There are three main types of permanent tissues: simple tissues, complex tissues, and secretory tissues. Simple tissues are homogeneous and composed of similar structural and functional cells. The three main types of simple tissues are parenchyma, collenchyma, and sclerenchyma. Parenchyma cells store food and aid regeneration. Collenchyma provides support and carries out photosynthesis. Sclerenchyma provides mechanical support and protection. Complex tissues include phloem and xylem. Phloem transports food materials while xylem transports water and minerals.
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Tissues
There are four main types of tissues in plants and animals:
1. Meristematic tissue, found at growing tips of stems and roots, is composed of actively dividing cells responsible for growth.
2. Permanent tissues have differentiated cells that perform specific functions and do not divide. These include simple tissues like parenchyma and complex tissues like xylem and phloem.
3. The four main animal tissues are epithelial, connective, muscle and nervous tissue. Epithelial tissue lines surfaces, connective tissue connects and supports, muscular tissue enables movement, and nervous tissue conducts electrical signals.
Primary permanent tissues
The cells derived from root apical and shoot-apical meristems and cambium differentiate and mature to perform specific functions. This act leading to maturation is termed as differentiation. During differentiation, cells undergo few to major structural changes both in their cell walls and protoplasm. The living differentiated cells, that by now have lost the capacity to divide can regain the capacity of division under certain conditions. This phenomenon is termed as dedifferentiation. For example, formation of meristems – interfascicular cambium and cork cambium from fully differentiated parenchyma cells. While doing so, such meristems / tissues are able to divide and produce cells that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated.
Permanent Tissues of Plants
The cells derived from root apical and shoot-apical meristems and cambium differentiate and mature to perform specific functions. This act leading to maturation is termed as differentiation. During differentiation, cells undergo few to major structural changes both in their cell walls and protoplasm. The living differentiated cells, that by now have lost the capacity to divide can regain the capacity of division under certain conditions. This phenomenon is termed as dedifferentiation. For example, formation of meristems – interfascicular cambium and cork cambium from fully differentiated parenchyma cells. While doing so, such meristems / tissues are able to divide and produce cells that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated.
Plant tissues, 9 cbse
Tissues are groups of similar cells that perform the same function and originate from the same source. There are two main types of tissues: plant tissues and animal tissues. Plant tissues include meristematic tissue and permanent tissue.
Meristematic tissue is responsible for plant growth, as the cells continuously divide and later specialize. There are three types of meristematic tissue: apical meristem at shoot and root tips, intercalary meristem between permanent tissues, and lateral meristem under bark.
Permanent tissue develops from meristematic tissue. There are two types - simple tissues with uniform cell type, and complex tissues with multiple cell types. The three simple tissues are parenchyma, collen
Division of labor in multicellular plants
Division of labor occurs in multicellular plants through the formation of tissues and tissue systems. Tissues are groups of cells that perform similar functions. There are two main types of tissues - meristematic tissue, whose cells can divide, and permanent tissue, whose cells cannot divide. Meristematic tissue is found at growth points and gives rise to permanent tissues. Permanent tissues include simple tissues like parenchyma, chlorenchyma, and sclerenchyma, as well as complex tissues like xylem and phloem. Xylem transports water and minerals throughout the plant while phloem transports food. Together these tissues form three main tissue systems - the epidermal system which provides protection, the
Plant tissues
Plant tissues are classified into two main types: meristematic and permanent tissues. Meristematic tissues are responsible for cell production and are found at growing tips, while permanent tissues provide structure and transport functions. The four main permanent tissues are surface tissues, fundamental tissues of parenchyma, collenchyma and sclerenchyma, and vascular tissues of xylem and phloem which transport water, minerals and food respectively.
Plant tissue
Plant cells and tissues are organized into three main organ groups - roots, stems, and leaves. These organs contain tissues that work together for common functions. Plant tissues are classified based on their structure and function. There are several main types of plant tissues including meristematic tissues for growth, parenchyma tissues for photosynthesis and storage, collenchyma and sclerenchyma tissues for structural support, xylem tissue for water and nutrient transport, and phloem tissue for food transport throughout the plant.
Complex tissue 1
Complex tissue types and it's elements .
Xylem and phloem primary and secondary growth and it's differences.
Xylem and phloem elements function and it's structure
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Tissues
There are four main types of tissues in plants and animals:
1. Meristematic tissue, found at growing tips of stems and roots, is composed of actively dividing cells responsible for growth.
2. Permanent tissues have differentiated cells that perform specific functions and do not divide. These include simple tissues like parenchyma and complex tissues like xylem and phloem.
3. The four main animal tissues are epithelial, connective, muscle and nervous tissue. Epithelial tissue lines surfaces, connective tissue connects and supports, muscular tissue enables movement, and nervous tissue conducts electrical signals.
Primary permanent tissues
The cells derived from root apical and shoot-apical meristems and cambium differentiate and mature to perform specific functions. This act leading to maturation is termed as differentiation. During differentiation, cells undergo few to major structural changes both in their cell walls and protoplasm. The living differentiated cells, that by now have lost the capacity to divide can regain the capacity of division under certain conditions. This phenomenon is termed as dedifferentiation. For example, formation of meristems – interfascicular cambium and cork cambium from fully differentiated parenchyma cells. While doing so, such meristems / tissues are able to divide and produce cells that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated.
Permanent Tissues of Plants
The cells derived from root apical and shoot-apical meristems and cambium differentiate and mature to perform specific functions. This act leading to maturation is termed as differentiation. During differentiation, cells undergo few to major structural changes both in their cell walls and protoplasm. The living differentiated cells, that by now have lost the capacity to divide can regain the capacity of division under certain conditions. This phenomenon is termed as dedifferentiation. For example, formation of meristems – interfascicular cambium and cork cambium from fully differentiated parenchyma cells. While doing so, such meristems / tissues are able to divide and produce cells that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated.
Plant tissues, 9 cbse
Tissues are groups of similar cells that perform the same function and originate from the same source. There are two main types of tissues: plant tissues and animal tissues. Plant tissues include meristematic tissue and permanent tissue.
Meristematic tissue is responsible for plant growth, as the cells continuously divide and later specialize. There are three types of meristematic tissue: apical meristem at shoot and root tips, intercalary meristem between permanent tissues, and lateral meristem under bark.
Permanent tissue develops from meristematic tissue. There are two types - simple tissues with uniform cell type, and complex tissues with multiple cell types. The three simple tissues are parenchyma, collen
Division of labor in multicellular plants
Division of labor occurs in multicellular plants through the formation of tissues and tissue systems. Tissues are groups of cells that perform similar functions. There are two main types of tissues - meristematic tissue, whose cells can divide, and permanent tissue, whose cells cannot divide. Meristematic tissue is found at growth points and gives rise to permanent tissues. Permanent tissues include simple tissues like parenchyma, chlorenchyma, and sclerenchyma, as well as complex tissues like xylem and phloem. Xylem transports water and minerals throughout the plant while phloem transports food. Together these tissues form three main tissue systems - the epidermal system which provides protection, the
Plant tissues
Plant tissues are classified into two main types: meristematic and permanent tissues. Meristematic tissues are responsible for cell production and are found at growing tips, while permanent tissues provide structure and transport functions. The four main permanent tissues are surface tissues, fundamental tissues of parenchyma, collenchyma and sclerenchyma, and vascular tissues of xylem and phloem which transport water, minerals and food respectively.
Plant tissue
Plant cells and tissues are organized into three main organ groups - roots, stems, and leaves. These organs contain tissues that work together for common functions. Plant tissues are classified based on their structure and function. There are several main types of plant tissues including meristematic tissues for growth, parenchyma tissues for photosynthesis and storage, collenchyma and sclerenchyma tissues for structural support, xylem tissue for water and nutrient transport, and phloem tissue for food transport throughout the plant.
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This document discusses the three types of meristematic tissues in plants: apical meristems, intercalary meristems, and lateral meristems. Apical meristems are located at shoot and root tips and facilitate primary growth. Dicots have apical meristems in both shoots and roots, while monocots only have them in roots. Monocots also have intercalary meristems that allow leaf regrowth. Lateral meristems cause secondary growth in dicots by increasing stem diameter. The document also describes simple and complex permanent tissues, including parenchyma, collenchyma, sclerenchyma, xylem, and phloem.
tissues
This document discusses different types of plant tissues. It explains that tissues are groups of similar cells that work together to perform a specific function. There are three main types of permanent tissues: simple permanent tissues which are made up of one type of cell; collenchyma which provides flexibility and mechanical support; and sclerenchyma which makes plants hard and stiff. Complex permanent tissues are made of multiple cell types that coordinate to perform a common function, such as xylem and phloem which transport water and nutrients. Xylem tissue specifically contains tracheids, vessels, parenchyma and fibers that transport water and minerals vertically while also providing structure and storing food.
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This document discusses plant tissues. It describes three types of simple permanent tissues - parenchyma, collenchyma and sclerenchyma. Parenchyma cells store food and water, collenchyma provides mechanical support and flexibility, and sclerenchyma provides structure and protection. Complex tissues like xylem and phloem are composed of multiple cell types. Xylem conducts water and minerals from roots to other parts and also provides structure. Phloem transports food from leaves to other plant parts.
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This document summarizes different types of plant tissues. It discusses simple tissues like parenchyma, collenchyma and sclerenchyma. Parenchyma is the most basic differentiated cell type and forms parts of plants. Sclerenchyma provides mechanical support and is divided into fibers and sclereids. Complex tissues discussed are xylem and phloem, which make up the vascular system. Xylem conducts water and is composed of tracheary elements like tracheids and vessels. Phloem conducts food and contains sieve elements, companion cells, and phloem parenchyma. The document is presented by Neha Shrimali for her class on plant tissues.
tissues
Tissues are groups of cells that work together to perform a specific function. There are two main types of plant tissues: meristematic tissues and permanent tissues. Meristematic tissues are involved in growth and include apical, intercalary, and lateral meristems. Permanent tissues provide structure and include simple tissues like parenchyma, collenchyma, and sclerenchyma and complex tissues like xylem and phloem. The main animal tissues are epithelial, connective, muscle, and nerve tissues. Epithelial tissue covers and protects organs, connective tissue binds and supports, muscle tissue contracts, and nerve tissue transmits signals.
Tiissue
This document discusses different types of plant and animal tissues. It begins by defining tissue as a group of similar cells that work together to perform a common function.
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For animal tissues, the document lists the main types as epithelial, muscular, connective, and nervous. Epithelial
Collenchyma cell project
Collenchyma is a mechanical tissue found under the epidermis of young stems and in the veins of leaves. It provides support to growing organs through thick, unevenly thickened cell walls that are flexible due to being composed of cellulose and pectin instead of lignin. Collenchyma cells are elongated and closely packed without intercellular spaces, giving strength and structure while allowing growth through flexibility and elongation of the living cells.
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1. Plant tissues are divided into meristematic and permanent tissues. Meristematic tissues are undifferentiated and divide to grow the plant, while permanent tissues carry out specialized functions.
2. The main types of plant tissues are ground tissues like parenchyma, and supporting tissues like collenchyma and sclerenchyma. Complex vascular tissues xylem and phloem transport water, minerals, and organic substances respectively.
3. Xylem consists of tracheids and vessel elements that transport water and minerals. Phloem transports organic substances using sieve tube elements and companion cells. Together these vascular tissues connect all plant organs.
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This document discusses the different types of plant tissues. It explains that plants are composed of meristematic tissues, ground tissues, vascular tissues, and epidermal tissues. Meristematic tissues are dividing tissues found at the tips of stems and roots that facilitate plant growth. They include apical and lateral meristems. Ground tissues provide structure and store nutrients. Vascular tissues transport water and nutrients throughout the plant. The epidermal tissue forms the outer protective covering of plants. Each of these major tissue types performs distinct but vital functions for plant structure and growth.
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Collenchyma tissue provides mechanical support for growing plants. It consists of living cells with thickened, uneven cell walls that are strongest at the corners. Collenchyma tissue is found below the epidermis and in the midribs of leaves and petioles in herbaceous plants. The thickened cell walls allow the tissue to provide support while still allowing bending, and to help growing organs expand. The tissue can also perform photosynthesis and store starch.
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This document discusses cell inclusions and sclerenchyma cells. It describes how cell inclusions are non-living substances present in cells that can be organic or inorganic reserves, excretions, or minerals. Common reserves include starch, glycogen, fat droplets, and aleurone grains. Sclerenchyma cells have thick, lignified secondary cell walls that provide structure and support. There are two types: fibers which are long and needle-shaped, and sclereids which are irregularly shaped and found in fruits and seeds. Both fiber and sclereid cell walls strengthen plant tissues.
tissues (plant tissues)
Plant tissues are groups of cells that work together to perform functions. There are two main types of plant tissues: meristematic tissue and permanent tissue. Meristematic tissue includes apical and lateral meristems that allow for primary and secondary growth. Permanent tissues include epidermal, ground, and support tissues. Vascular tissues include xylem and phloem that transport water and nutrients throughout the plant.
Botany ppt on tissues
This document discusses the different types of plant tissues. It begins by defining tissue as a group of similar cells that work together to perform a specific function. There are two main types of tissues - meristematic and permanent tissues. Meristematic tissues are made of actively dividing cells and include apical, lateral, and intercalary meristems. Permanent tissues have stopped dividing and include simple tissues like parenchyma, collenchyma, and sclerenchyma, as well as complex tissues like xylem and phloem that transport water and nutrients. The document also covers special or secretory tissues that secrete substances like enzymes, nectar, oils, and latex.
Tissues
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Meristematic tissue is a type of plant tissue that is actively dividing and found in specific regions of plants, including the tips of stems and roots, where it facilitates growth. It differentiates into permanent tissues, which contain non-dividing cells specialized for functions like support, storage, and transport. The two main types of plant tissues are meristematic and permanent tissues, which differ in their ability to divide and specialize into different simple and complex tissues that make up plants.
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This document summarizes and compares the main types of plant and animal tissues. It outlines that plant tissues are divided into meristematic and permanent tissues, with meristematic tissue providing growth and permanent tissue conducting materials. Animal tissues include four primary types - epithelial, connective, muscular and nervous tissues. Each tissue type has subcategories and performs distinct functions like transport, connection or movement.
Tissues
A Powerpoint made for my school on the various types of Tissues within an Animal and a Plant and also describing their various functions.
Contents:
-Plant tissues
*Meristematic tissues
*Permanent tissues
*Simple permanent tissues
*Parenchyma
*Collenchyma
*Sclerenchyma
*Epidermis
*Complex permanent tissue
*Xylem
*Phloem
-Animal tissues
*Connective tissue
*Muscle tissue
*Nervous tissue
*Epithelial tissue
Special Reference to Wikepedia and Several Other Websites (Which I can't recall since I'd made this 2 years ago)
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The document discusses the main types of tissues in the body. There are four primary tissue types - epithelial, connective, muscle and nerve tissue. Epithelial tissues cover surfaces and glands, and are classified as simple or stratified. Connective tissues are found throughout the body and include fibrous, adipose, cartilage and bone tissues. Muscle tissues contain muscle cells and contract to cause movement. Nerve tissues transmit electrical signals throughout the body.
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This document discusses the three types of meristematic tissues in plants: apical meristems, intercalary meristems, and lateral meristems. Apical meristems are located at shoot and root tips and facilitate primary growth. Dicots have apical meristems in both shoots and roots, while monocots only have them in roots. Monocots also have intercalary meristems that allow leaf regrowth. Lateral meristems cause secondary growth in dicots by increasing stem diameter. The document also describes simple and complex permanent tissues, including parenchyma, collenchyma, sclerenchyma, xylem, and phloem.
tissues
This document discusses different types of plant tissues. It explains that tissues are groups of similar cells that work together to perform a specific function. There are three main types of permanent tissues: simple permanent tissues which are made up of one type of cell; collenchyma which provides flexibility and mechanical support; and sclerenchyma which makes plants hard and stiff. Complex permanent tissues are made of multiple cell types that coordinate to perform a common function, such as xylem and phloem which transport water and nutrients. Xylem tissue specifically contains tracheids, vessels, parenchyma and fibers that transport water and minerals vertically while also providing structure and storing food.
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This document discusses plant tissues. It describes three types of simple permanent tissues - parenchyma, collenchyma and sclerenchyma. Parenchyma cells store food and water, collenchyma provides mechanical support and flexibility, and sclerenchyma provides structure and protection. Complex tissues like xylem and phloem are composed of multiple cell types. Xylem conducts water and minerals from roots to other parts and also provides structure. Phloem transports food from leaves to other plant parts.
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This document summarizes different types of plant tissues. It discusses simple tissues like parenchyma, collenchyma and sclerenchyma. Parenchyma is the most basic differentiated cell type and forms parts of plants. Sclerenchyma provides mechanical support and is divided into fibers and sclereids. Complex tissues discussed are xylem and phloem, which make up the vascular system. Xylem conducts water and is composed of tracheary elements like tracheids and vessels. Phloem conducts food and contains sieve elements, companion cells, and phloem parenchyma. The document is presented by Neha Shrimali for her class on plant tissues.
tissues
Tissues are groups of cells that work together to perform a specific function. There are two main types of plant tissues: meristematic tissues and permanent tissues. Meristematic tissues are involved in growth and include apical, intercalary, and lateral meristems. Permanent tissues provide structure and include simple tissues like parenchyma, collenchyma, and sclerenchyma and complex tissues like xylem and phloem. The main animal tissues are epithelial, connective, muscle, and nerve tissues. Epithelial tissue covers and protects organs, connective tissue binds and supports, muscle tissue contracts, and nerve tissue transmits signals.
Tiissue
This document discusses different types of plant and animal tissues. It begins by defining tissue as a group of similar cells that work together to perform a common function.
The document then separates tissues into plant and animal categories. It describes the main plant tissue types as meristematic and permanent. Meristematic tissue is responsible for plant growth, and occurs in three forms: apical, lateral, and intercalary. Permanent tissues include simple tissues like parenchyma, collenchyma, and sclerenchyma, as well as complex tissues xylem and phloem.
For animal tissues, the document lists the main types as epithelial, muscular, connective, and nervous. Epithelial
Collenchyma cell project
Collenchyma is a mechanical tissue found under the epidermis of young stems and in the veins of leaves. It provides support to growing organs through thick, unevenly thickened cell walls that are flexible due to being composed of cellulose and pectin instead of lignin. Collenchyma cells are elongated and closely packed without intercellular spaces, giving strength and structure while allowing growth through flexibility and elongation of the living cells.
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1. Plant tissues are divided into meristematic and permanent tissues. Meristematic tissues are undifferentiated and divide to grow the plant, while permanent tissues carry out specialized functions.
2. The main types of plant tissues are ground tissues like parenchyma, and supporting tissues like collenchyma and sclerenchyma. Complex vascular tissues xylem and phloem transport water, minerals, and organic substances respectively.
3. Xylem consists of tracheids and vessel elements that transport water and minerals. Phloem transports organic substances using sieve tube elements and companion cells. Together these vascular tissues connect all plant organs.
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This document discusses the different types of plant tissues. It explains that plants are composed of meristematic tissues, ground tissues, vascular tissues, and epidermal tissues. Meristematic tissues are dividing tissues found at the tips of stems and roots that facilitate plant growth. They include apical and lateral meristems. Ground tissues provide structure and store nutrients. Vascular tissues transport water and nutrients throughout the plant. The epidermal tissue forms the outer protective covering of plants. Each of these major tissue types performs distinct but vital functions for plant structure and growth.
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Collenchyma tissue provides mechanical support for growing plants. It consists of living cells with thickened, uneven cell walls that are strongest at the corners. Collenchyma tissue is found below the epidermis and in the midribs of leaves and petioles in herbaceous plants. The thickened cell walls allow the tissue to provide support while still allowing bending, and to help growing organs expand. The tissue can also perform photosynthesis and store starch.
Ergastic Substances
This document discusses cell inclusions and sclerenchyma cells. It describes how cell inclusions are non-living substances present in cells that can be organic or inorganic reserves, excretions, or minerals. Common reserves include starch, glycogen, fat droplets, and aleurone grains. Sclerenchyma cells have thick, lignified secondary cell walls that provide structure and support. There are two types: fibers which are long and needle-shaped, and sclereids which are irregularly shaped and found in fruits and seeds. Both fiber and sclereid cell walls strengthen plant tissues.
tissues (plant tissues)
Plant tissues are groups of cells that work together to perform functions. There are two main types of plant tissues: meristematic tissue and permanent tissue. Meristematic tissue includes apical and lateral meristems that allow for primary and secondary growth. Permanent tissues include epidermal, ground, and support tissues. Vascular tissues include xylem and phloem that transport water and nutrients throughout the plant.
Botany ppt on tissues
This document discusses the different types of plant tissues. It begins by defining tissue as a group of similar cells that work together to perform a specific function. There are two main types of tissues - meristematic and permanent tissues. Meristematic tissues are made of actively dividing cells and include apical, lateral, and intercalary meristems. Permanent tissues have stopped dividing and include simple tissues like parenchyma, collenchyma, and sclerenchyma, as well as complex tissues like xylem and phloem that transport water and nutrients. The document also covers special or secretory tissues that secrete substances like enzymes, nectar, oils, and latex.
Tissues
In plant anatomy, tissues are categorized broadly into three tissue systems: the epidermis, the ground tissue, and the vascular tissue. Epidermis - Cells forming the outer surface of the leaves and of the young plant body. Vascular tissue - The primary components of vascular tissue are the xylem and phloem.
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Meristematic tissue is a type of plant tissue that is actively dividing and found in specific regions of plants, including the tips of stems and roots, where it facilitates growth. It differentiates into permanent tissues, which contain non-dividing cells specialized for functions like support, storage, and transport. The two main types of plant tissues are meristematic and permanent tissues, which differ in their ability to divide and specialize into different simple and complex tissues that make up plants.
P.P.T of Plant and Animal Tisssues
This document summarizes and compares the main types of plant and animal tissues. It outlines that plant tissues are divided into meristematic and permanent tissues, with meristematic tissue providing growth and permanent tissue conducting materials. Animal tissues include four primary types - epithelial, connective, muscular and nervous tissues. Each tissue type has subcategories and performs distinct functions like transport, connection or movement.
Tissues
A Powerpoint made for my school on the various types of Tissues within an Animal and a Plant and also describing their various functions.
Contents:
-Plant tissues
*Meristematic tissues
*Permanent tissues
*Simple permanent tissues
*Parenchyma
*Collenchyma
*Sclerenchyma
*Epidermis
*Complex permanent tissue
*Xylem
*Phloem
-Animal tissues
*Connective tissue
*Muscle tissue
*Nervous tissue
*Epithelial tissue
Special Reference to Wikepedia and Several Other Websites (Which I can't recall since I'd made this 2 years ago)
Tissues Proj
The document discusses the main types of tissues in the body. There are four primary tissue types - epithelial, connective, muscle and nerve tissue. Epithelial tissues cover surfaces and glands, and are classified as simple or stratified. Connective tissues are found throughout the body and include fibrous, adipose, cartilage and bone tissues. Muscle tissues contain muscle cells and contract to cause movement. Nerve tissues transmit electrical signals throughout the body.
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http://www.slideshare.net/confirm/ODUyNjkyMjY7NGI3ODEwODFhNWNlYWQ1NDZhMGZjM2E5MjZhMjkwMDU2YzIxNjg3OQ==/
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Modern agricultural practices
Poly house farming involves growing crops under covered structures made of plastic sheeting to regulate temperature and moisture. This reduces pest infestation and increases crop yields compared to regular fields, though startup costs are higher. Precision farming uses technology to test soil properties and apply only needed irrigation and weed control based on soil composition. Hydroponics grows plants in nutrient solutions without soil, while aeroponics sprays nutrients directly onto exposed roots growing in air.
Major project report on MEASUREMENT, PROTECTION, SPEED CONTROL AND GRAPHICAL ...
Major project report on MEASUREMENT, PROTECTION, SPEED CONTROL AND GRAPHICAL
OBSERVATION OF DC MOTOR PARAMETERS BY
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This document discusses the different types of plant tissues, including parenchyma, collenchyma, sclerenchyma, xylem, and phloem. Parenchyma cells are large with thin walls and store food and carry out photosynthesis. Collenchyma cells have thick walls that provide mechanical support. Sclerenchyma cells have very thick lignified walls and also provide mechanical support. Xylem conducts water and minerals throughout the plant and contains tracheids, vessels, fibers and parenchyma, also providing structure. Phloem transports dissolved organic foods through the plant.
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PowerPoint Presentation on the topic - 'Tissues'. For Class - 9th.
Created By - 'Neha Rohtagi'
I hope that you will found this presentation useful and it will help you out for your concept understanding.
Thank You!
Tissues
slide1- introduction
slide2-Plant Tissue
Plant tissues are of two types :-
Meristematic tissue
Permanent tissue
slide3-Meristematic Tissue
Meristematic tissues continuously form a number of new cells and helps in growth and are generally made up live cells . Meristematic tissues are the group of cells that have the ability to divide. These tissues in a plant consist of small, densely packed cells that can keep dividing to form new cells. Meristems give rise to permanent tissues and have the following characteristics:
the cells are small,
the cells walls are thin,
cells have large nuclei,
vacuoles are absent or very small
there are no intercellular spaces.
Types of Meristematic Tissue
Apical Meristem:- Apical meristem is present on root apex, stem apex, leaf buds and flower buds. They are responsible for growth in length, i.e. primary growth.
Lateral Meristem: Lateral meristem is present along the side of the stem. They are responsible for growth in girth, i.e. secondary growth.
Intercalary Meristem: Intercalary meristem is present at the base of leaf or internodes. They are present on either side of the node.
slide4-Permanent Tissue [Plant Tissue]
Once the cells of meristematic tissue divide to a certain extent, they become specialized for a particular function. This process is called differentiation. Once differentiation is accomplished, the cells lose their capability to divide and the tissue becomes permanent tissue. Permanent tissues are of two types, simple permanent tissue and complex permanent tissue.
Permanent tissue gives support and are generally made up of dead cells . The cells of permanent tissues do not have the ability to divide. These cells are already differentiated in different tissue types and is now specialized to perform specific functions. They are subdivided into two groups, simple tissues consisting of cells which are more or less similar, e.g. epidermis, parenchyma, chlorenchyma, collenchyma, sclerenchyma and complex tissues consisting of different kinds of cells, e.g. xylem and phloem.
slide5-Parenchyma tissue
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It is loosely packed and inter cellular spaces are there .
In aquatic plants , air is filled in parenchyma tissue , so they are called Arenchyma .
Parenchyma in which chlorophyll is present is called chlorenchyma .
slide6- Collenchyma tissue
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(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
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aziz sancar nobel prize winner: from mardin to nobel
aziz sancar nobel prize winner: from mardin to nobel
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
Aprana
- 1. WELCOME
- 3. PERMANENT TISSUE Permanent tissue is composed of cells in which growth has stopped. These may be dead or living and thin or thick walled. Permanent tissues may be classified into three they are; Simple tissue Complex tissue Secretory tissue
- 4. SIMPLE TISSUE Simple tissue are homogenous in nature. It is composed of structurally and functionally similar. The main simple permanent tissues are; Parenchyma Collenchyma sclerenchyma
- 5. PARENCHYMA • Storage of food materials. • Parenchyma is the main living tissue, so it helps in regeneration and healing wound • Thick walled parenchyma gives mechanical support. • Typical parenchyma cells gives rigidity to plants. • Parenchyma stores water in fleshy succulent plant.
- 6. COLLENCHYMA Collenchyma carries out photosynthesis if chloroplasts are present. Their walls are unevenly thickened. The cell wall composed of cellulose and pectin. Collenchyma absent in monocot.
- 7. SCLERENCHYMA • The main function of sclerenchyma is that it provides mechanical support. • It gives protection from various adverse conditions. • It helps in dispersal of fruits and seeds. • Xylem fibres help in coduction of water. • The gritiness of the pulp in fruits are due to the presence of sclerids.
- 8. PHOLEM • Pholem is a complex tissue meant for conduction food material. • Function is transportation of food materials from leaves to other parts of plant.
- 9. XYLEM • Conducts water and minerals upwards from the root to leaf. • Gives mechanical support to the plant body. • Xylem parenchyma serves for storage of food.
- 10. FOLLOW UP ACTIVITY 1. Explain simple tissue ? 2. What are the main functions of simple tissue?