PLANT TISSUES grd10E.pptx
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This document defines plant tissues and describes the two main types: meristematic and permanent tissues. Meristematic tissues are undifferentiated and actively divide through mitosis in roots and stems to produce new cells. Permanent tissues arise from cell differentiation and include epidermis, collenchyma, parenchyma, chlorenchyma, sclerenchyma, xylem and phloem, each with a distinct structure and function like protection, support, food storage, photosynthesis, and transport of water, minerals and food throughout the plant.
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The document discusses different types of cell division: binary fission, mitosis, and meiosis. Binary fission is how prokaryotic cells divide, splitting their single DNA strand to form two identical daughter cells. Mitosis and meiosis are forms of cell division in eukaryotes. Mitosis produces two identical daughter cells through the phases of interphase, prophase, metaphase, anaphase and telophase. Meiosis involves two cell divisions and results in four haploid cells with half the normal genetic material.
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Here are the key differences between prokaryotic and eukaryotic cells:
Prokaryotic Cells:
- Lack a nucleus and other membrane-bound organelles
- Have circular DNA located in the nucleoid region
- Typically smaller than eukaryotic cells
- Include bacteria and archaea
Eukaryotic Cells:
- Have a clearly defined nucleus enclosed in a nuclear membrane
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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
The cells of parenchyma have thin cell wall. They are loosely packed; with lot of intercellular spaces between them. Parenchyma makes the largest portion of a plant body. Parenchyma mainly works are packing material in plant parts. The main function of parenchyma is to provide support and to store food.
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
In collenchyma tissue , the cells are generally elongated and are circular , oval or polygonal in cross- section. Cell wall is evenly thickened with cellulose at the corners . It is present on internodes of the plant . It is closely packed and intercellular spaces are generally absent. It is a living cell and vacuo
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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.
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Here are the key differences between prokaryotic and eukaryotic cells:
Prokaryotic Cells:
- Lack a nucleus and other membrane-bound organelles
- Have circular DNA located in the nucleoid region
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Eukaryotic Cells:
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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
The cells of parenchyma have thin cell wall. They are loosely packed; with lot of intercellular spaces between them. Parenchyma makes the largest portion of a plant body. Parenchyma mainly works are packing material in plant parts. The main function of parenchyma is to provide support and to store food.
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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In this lesson you will learn about :
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3) Plant Tissue Systems
I hope this document is helpful to you. Please share the document with your friends if you think this will benefit them. Get ready for the next lesson. Thanks.
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tissues (class- 9th notes)
Tissues are groups of cells that work together to perform specific functions. There are four main types of tissues in animals and plants:
(1) Epithelial tissues cover and protect surfaces, and allow for absorption and secretion. (2) Connective tissues connect and support other tissues. (3) Muscle tissues allow for movement. (4) Nervous tissues receive and transmit electrochemical signals. Tissues are organized into organs that work together as organ systems to keep the organism functioning.
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1) Tissues - "The Teams of Workers"
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I hope this document is helpful to you. Please share the document with your friends if you think this will benefit them. Get ready for the next lesson. Thanks.
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1. Urea is produced in the liver from excess amino acids and is removed from the blood by the kidneys and excreted in urine. Carbon dioxide is produced during respiration and is removed from the body through exhalation in the lungs.
2. Egestion refers to the removal of undigested food from the body, while excretion is the removal of waste products from metabolic processes.
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This document discusses different types of plant and animal tissues. It describes in detail the various types of plant tissues including meristematic tissues, permanent tissues (simple and complex), and their functions. The simple permanent tissues discussed are parenchyma, collenchyma, sclerenchyma. The complex permanent tissues discussed are xylem and phloem. It also describes the various types of animal tissues like epithelial tissue, connective tissue, muscular tissue and nervous tissue. Epithelial tissue is described in more detail covering the different types like squamous, cuboidal and columnar epithelium.
tissues (class- 9th notes)
Tissues are groups of cells that work together to perform specific functions. There are four main types of tissues in animals and plants:
(1) Epithelial tissues cover and protect surfaces, and allow for absorption and secretion. (2) Connective tissues connect and support other tissues. (3) Muscle tissues allow for movement. (4) Nervous tissues receive and transmit electrochemical signals. Tissues are organized into organs that work together as organ systems to keep the organism functioning.
Ch 6 Tissues 1.pptx
This document provides an overview of plant and animal tissues. It defines tissue and discusses the main types of plant tissues - meristematic and permanent tissues. It describes three types of meristematic tissue and the characteristics of simple and complex permanent tissues. It also defines the four main types of animal tissues - epithelial, connective, muscular and nervous tissues - and provides examples of each. The learning outcomes are to understand the classification, structure and function of different plant and animal tissues. Students are assigned exercises from the textbook and tasks to create fact sheets and mind maps about tissues.
Tissues ppt
Tissues are composed of groups of cells that perform specialized functions. There are four main types of tissues in animals: epithelial tissues cover and line body structures, connective tissues connect and support other tissues, muscular tissues allow for movement, and nervous tissues detect and respond to stimuli. The major animal tissues include epithelial (squamous, cuboidal, columnar), connective (blood, bone, cartilage), muscular (striated, smooth, cardiac), and nervous tissue. Each tissue type has characteristic structures and locations throughout the body.
Class 9 tissues
Tissues are groups of cells that perform similar functions in multicellular organisms. There are two main types of tissues - plant tissues and animal tissues.
Plant tissues include meristematic tissues, which are responsible for growth, and permanent tissues like parenchyma, collenchyma and sclerenchyma tissues that provide structure and support. Complex plant tissues include xylem and phloem tissues that transport water/minerals and food respectively.
Animal tissues include four main types - epithelial tissues that provide protection, connective tissues that connect and support other tissues, muscular tissues that allow movement, and nervous tissues that coordinate the body's activities and reactions. The document provides examples and functions of different types of
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.
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.
Planttissues9cbse 130227083213-phpapp02
This document discusses plant tissues. There are two main categories of tissues - plant tissues and animal tissues. Plant tissues include meristematic tissue, which is responsible for plant growth, and permanent tissues. Permanent tissues are either simple, with cells of one type, or complex. The three types of simple permanent plant tissues are parenchyma, collenchyma, and sclerenchyma. Parenchyma cells are living, thin-walled cells that serve storage, metabolic, and mechanical functions. Collenchyma cells have thickened walls that provide strength and flexibility. Sclerenchyma cells are not discussed further in this summary.
TISSUES Class - 9th
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!
chapter3-planttissues-1709221555708.pptx
This document provides an outline and overview of plant tissues. It begins with an introduction to plant meristematic tissues, which are undifferentiated tissues responsible for growth. There are three types of meristematic tissue: promeristem, primary meristem, and secondary meristem. The document then discusses the four main types of permanent plant tissues - parenchyma, collenchyma, sclerenchyma, and vascular tissues - detailing their characteristics and functions. It concludes with an overview of the three main tissue systems in plants - dermal, ground, and vascular tissues - and their roles in structure, protection, and conduction within plants.
Basic principles of Pharmacognosy
This document provides an overview of basic principles of pharmacognosy. It begins by defining pharmacognosy as the study of medicinal drugs obtained from plants or other natural sources. It then discusses plant cells, tissues, and the three main tissue systems - epidermal, ground, and vascular. Specific plant structures like stems, leaves, flowers, fruits, and seeds are also summarized in terms of their structure and function. The document provides a comprehensive introduction to plant anatomy and physiology relevant to the study of herbal medicines.
PLANT TISSUES
This document provides an overview of plant tissues. It begins by outlining the chapter which covers basic plant cell types, vascular plant tissues, an overview of vascular plants, and plant growth and development. The objective is to identify and describe plant tissue types, including their structure, location, and function. The document then describes the three main types of plant tissues - meristematic tissues, permanent tissues, and complex permanent tissues. It provides details on each tissue type, including characteristics, classification, and functions. In summary, the document provides a detailed overview of the different plant tissue types, their structures and roles in vascular plants.
STUDY OF ANIMAL TISSUES
This document summarizes the key types of tissues found in plants and animals. In plants, there are two main types of tissues - meristematic tissues which continuously divide, and permanent tissues which have specialized structures and functions. Meristematic tissues include apical, lateral, and intercalary meristem. Permanent tissues include simple tissues like parenchyma, collenchyma, and sclerenchyma, and complex tissues like xylem and phloem. In animals, the main tissues are epithelial, connective, muscle and nerve tissues. Epithelial tissue covers the internal and external surfaces, and includes several cell types arranged in layers.
"Tissues" Chapter:-6 Class 9
1) Tissues are groups of cells that work together to perform specific functions. In plants and animals, tissues are organized into organs and organ systems.
2) Plant tissues are divided into meristematic tissues, which facilitate growth, and permanent tissues, which carry out other functions. Permanent tissues include simple tissues like parenchyma, collenchyma and sclerenchyma, and complex tissues like xylem and phloem that transport water and nutrients.
3) Animal tissues include four main types - epithelial tissues, muscular tissues, connective tissues and nervous tissues. Epithelial tissues cover and line body surfaces, muscular tissues enable movement, connective tissues connect and support other tissues, and
IX_BIOLOGY_6_1,PPT.pdfcvhjhhhhhhhhhhhggg
This document provides information about plant tissues. It discusses the main types of plant tissues as meristematic and permanent tissues. Meristematic tissues are dividing tissues found in growing regions that help the plant grow. Permanent tissues do not divide and include simple tissues like parenchyma, collenchyma and sclerenchyma, as well as complex tissues like xylem and phloem that transport water and nutrients. Xylem transports water and minerals upward while phloem transports food in all directions. The document also describes different cell types, functions, and locations of tissues in plants.
TISSUES.pptx
This document provides information about tissues in multi-cellular organisms. It explains that in multi-cellular organisms, cells specialize to perform specific functions. Groups of specialized cells that perform a particular function together are called tissues. The document discusses the main types of plant tissues, including meristematic tissue, permanent tissues like parenchyma and sclerenchyma, and complex tissues like xylem and phloem. It also discusses the four main types of animal tissues - epithelial, connective, muscular and nervous tissues - and provides examples to illustrate each tissue type.
CH 6 TISSUE.pdf
Plants and animals are made of different types of tissues due to differences in their structure and function. In multicellular organisms, cells are grouped together into tissues to efficiently perform specialized functions. In plants, tissues include epidermis, a protective outer layer of flat cells covered with a waxy cuticle. Meristematic tissues contain actively dividing cells and produce permanent tissues through differentiation. Permanent tissues include parenchyma, collenchyma, and sclerenchyma, which provide structure and support to plants. Stomata in the leaf epidermis allow for gas exchange and transpiration. As plants age, cork replaces the epidermis and protects the bark.
596854845-9tissuesppt-150802072720-lva1-app6892.pdf
- Cells in multicellular organisms are organized into tissues to efficiently perform specialized functions.
- Tissues are groups of similar cells that come from the same parent cell and work together.
- In plants and animals, different tissues like muscle, nerve, vascular and epidermal tissues are made of different cell types due to their distinct structures and functions.
Tissues Class 9 ppt
Hello readers,
This PPT is about the chapter:- Tissue which is in science class IX
Question Are In The Book Of NCERT
I Hope this will help You...
Thanks....
9 tissues ppt
It's a PPT for chapter:- Tissue which is in science of class IX. Questions are from NCERT book of Science....
Please see to it .
I hope it will help You...
Thanks.
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PLANT TISSUES grd10E.pptx
- 1. PLANT TISSUES Grade 10 Life Sciences (Term 2)
- 2. Objectives Learners will be able to: Define a tissue Differentiate between meristematic and permanent tissues List the permanent tissues and give their location and function
- 3. Plant Tissues • Cells in multicellular organism become different by changing shape and structure • This is cell differentiation • they become specialised to a certain job or function • A group of specialised cells that perform one or more particular functions is called tissue • Tissue is a group of similar cells for a particular function • The structure and function of a tissue have a strong relationship (structural adaptation)
- 4. Types of plant tisuues • Plant have two types of tissues Meristematic Tissue – refers to those that acticly dividing by mitosis to form new cells • they are undifferentiated_ they do not differentiate to perfom any other specific function Permanent tissues – arise from cells formed by mitosis from the meristematic tissue that have differentiated so that they have a particular structure suited to the particular role
- 6. Meristematic tissues Apical meristem • Located on the tips of roots and stems • Through cell division they produce new cells for growth, repair and replacement of worn-out/damaged tissue Lateral meristem • Found between xylem and phloem in the vascular bundles of stems • Through cell division they produce new cells for growth, repair and replacement of worn-out/damaged tissue
- 7. Permanent tissues • Epidermis/ Epidermal tissue Lines the surfaces of roots, stems and leaves Their main function is to protect plant organs May be modified to form guard cells which controls the stomatal opening Or root hair cells which absorbs water and minerals
- 8. Permanent Tissues continued • Collenchyma Found in stems and leaves They function to provide strength and support to the aerial parts of the plants
- 9. Permanent Tissues continued • Parenchyma Fills up the large spaces between other tissues in roots and stems They serve as packing tissue; stores food in the form of starch and other sugars; allow for movement of water and gases through their intercellular spaces
- 10. Permanent Tissues continued • Chlorenchyma Found in leaves Contain chlorophyll for the manufacture of organic compounds such as glucose by photosynthesis
- 11. Permanent Tissues continued • Sclerenchyma Found in leaves stems, roots and fruit of plants Provides mechanical support to the plant
- 12. Permanent Tissues continued • Xylem Found in leaves, stems and roots Contains vessels and tracheids Transport water and minerals through the plant Provides support and strength to the plant
- 13. Permanent Tissues continued Phloem • Found in leaves, stems and roots • Contains sieve tubes and companion cells • Transports manufactured food from the leaves to all pars of the plant