Plants Exam Review
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Plants are living things that are born from seeds or spores, make their own food through photosynthesis, and can reproduce. They differ from animals in that plants make their own food rather than eating other organisms, cannot move, and are born from seeds rather than eggs. The main parts of a plant include roots that absorb water and minerals, a stem that transports fluids and holds leaves and branches, and leaves that perform photosynthesis. Plants can be classified by their stem as trees, bushes, or grasses, or by their uses as ornamental, nutritious, aromatic, or weeds.
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This document discusses nutrition in plants. It defines nutrition as the process by which living organisms obtain energy from food. It explains that plants obtain nutrients through autotrophic nutrition, by producing their own food through photosynthesis using water, carbon dioxide, sunlight, and chlorophyll. Photosynthesis is defined as the process by which plants produce food using these components. The key stages of photosynthesis are explained, including how sunlight is trapped by chlorophyll and how carbon dioxide and water are converted into food in the leaves.
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Nutrition in plants is very important for plant life. Plants obtain nutrients through autotrophic nutrition, where they produce their own food through photosynthesis using water, carbon dioxide, sunlight, and chlorophyll. Photosynthesis is the process where plants use these components to produce carbohydrates, which provide the plant with nutrients and energy. Plants take in water and dissolved mineral salts from the soil through their roots, which travel up the xylem vessels to the leaves. In the leaves, the mixture combines with carbon dioxide through photosynthesis to produce the plant's food.
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Nutrition in plants can occur through two main modes: autotrophic and heterotrophic nutrition. Autotrophic nutrition involves plants producing their own food through the process of photosynthesis using carbon dioxide, water and sunlight. Heterotrophic nutrition involves plants that cannot produce their own food and instead rely on other organisms for nutrition, such as parasitic plants that derive nutrients from a host plant, or saprotrophic fungi that break down dead and decaying matter.
Nutrition in plants
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1. The document discusses photosynthesis and cellular respiration, the two key processes by which living organisms produce and use energy.
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Nutrition in plants is very important for plant life. Plants obtain nutrients through autotrophic nutrition, where they produce their own food through photosynthesis using water, carbon dioxide, sunlight, and chlorophyll. Photosynthesis is the process where plants use these components to produce carbohydrates, which provide the plant with nutrients and energy. Plants take in water and dissolved mineral salts from the soil through their roots, which travel up the xylem vessels to the leaves. In the leaves, the mixture combines with carbon dioxide through photosynthesis to produce the plant's food.
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Nutrition in plants can occur through two main modes: autotrophic and heterotrophic nutrition. Autotrophic nutrition involves plants producing their own food through the process of photosynthesis using carbon dioxide, water and sunlight. Heterotrophic nutrition involves plants that cannot produce their own food and instead rely on other organisms for nutrition, such as parasitic plants that derive nutrients from a host plant, or saprotrophic fungi that break down dead and decaying matter.
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Plants obtain nutrition through various modes including autotrophic, heterotrophic, and saprotrophic nutrition. Autotrophic nutrition, which is found in green plants, involves plants making their own food through photosynthesis. During photosynthesis, green plants such as leaves use carbon dioxide, water, and sunlight to produce carbohydrates and release oxygen. Some non-green plants rely on heterotrophic nutrition and obtain nutrients from other living organisms. Saprotrophic plants get nutrients from decaying organic matter. Symbiotic relationships also provide nutrition, such as rhizobium bacteria living in root nodules of legumes that provide nitrogen to the plant in exchange for shelter and food.
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Plants and some bacteria are autotrophs, meaning they can produce their own food using photosynthesis. During photosynthesis, autotrophs use carbon dioxide, water, and energy from sunlight to produce oxygen and carbohydrates like glucose. These carbohydrates provide energy and nutrients for the autotroph. Animals and other organisms are heterotrophs because they cannot produce their own food and rely on autotrophs or other organisms for nutrients. Heterotrophs obtain nutrients by eating autotrophs and other organisms. Humans and other animals eat food to get nutrients and energy from carbohydrates, fats, proteins, vitamins, and minerals which are used to power life processes and allow growth.
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Here are the answers:
(i) Cuscuta
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This document summarizes key aspects of plant biology. It describes that plants have roots, stems, and leaves, and that their roots absorb water and minerals from soil. It explains that plants perform photosynthesis in their leaves to produce food from water, minerals from the soil, carbon dioxide from air, and energy from sunlight. The document also provides an overview of plant reproduction, including the parts of flowers and how pollen fertilizes pistils to produce fruits and seeds.
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The document outlines the seven main life processes that all living things carry out: movement, respiration, sensitivity, growth, reproduction, excretion, and nutrition. It explains that movement allows living things to change position, respiration generates energy through breathing in oxygen, sensitivity allows organisms to be aware of their surroundings, growth is the increase in size, reproduction creates new individuals, excretion removes waste, and nutrition obtains food.
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Plants obtain nutrition through various modes including autotrophic, heterotrophic, and saprotrophic nutrition. Autotrophic nutrition, which is found in green plants, involves plants making their own food through photosynthesis. During photosynthesis, green plants such as leaves use carbon dioxide, water, and sunlight to produce carbohydrates and release oxygen. Some non-green plants rely on heterotrophic nutrition and obtain nutrients from other living organisms. Saprotrophic plants get nutrients from decaying organic matter. Symbiotic relationships also provide nutrition, such as rhizobium bacteria living in root nodules of legumes that provide nitrogen to the plant in exchange for shelter and food.
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All living things share seven life processes: 1) movement, 2) reproduction, 3) sensitivity to the environment, 4) nutrition, 5) excretion of waste, 6) respiration, and 7) growth. These processes allow organisms to obtain energy and materials from the environment, respond to stimuli, eliminate waste, and develop from birth to maturity. The initial letters of each process spell out "MRS NERG" to help remember the seven essential functions of life.
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Green plants can produce their own food through the process of photosynthesis using carbon dioxide, water, sunlight, and chlorophyll. They are autotrophic. Other plants and organisms obtain nutrition from other sources - heterotrophic plants may be parasitic, drawing nutrients from a host plant, saprophytic and feeding on dead and decaying matter, or insectivorous like pitcher plants which trap and digest insects. Some plants have symbiotic relationships where both partners benefit from exchange of nutrients.
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This document discusses nutrition in plants. It explains that plants get nutrients from the soil and light energy from the sun to produce their own food through photosynthesis. There are different modes of nutrition in plants - autotrophs can produce their own food, heterotrophs obtain food from other organisms, and some plants have parasitic or symbiotic relationships. The document also describes two activities - one showing that sunlight is necessary for photosynthesis, and another observing the fungus bread mould growing on bread as an example of a saprotroph.
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Plants and some bacteria are autotrophs, meaning they can produce their own food using photosynthesis. During photosynthesis, autotrophs use carbon dioxide, water, and energy from sunlight to produce oxygen and carbohydrates like glucose. These carbohydrates provide energy and nutrients for the autotroph. Animals and other organisms are heterotrophs because they cannot produce their own food and rely on autotrophs or other organisms for nutrients. Heterotrophs obtain nutrients by eating autotrophs and other organisms. Humans and other animals eat food to get nutrients and energy from carbohydrates, fats, proteins, vitamins, and minerals which are used to power life processes and allow growth.
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Here are the answers:
(i) Cuscuta
(ii) Venus flytrap
(iii) Algae
(iv) Rhizobium bacteria
(v) Lichens
Essential conditions for fungi to grow: Moisture and organic matter/substrate for fungi to break down and absorb nutrients.
Nutrition in plants
Class 7 Chapter 1
Nutrition in Plants
Hey everyone, I am a student, Aanya Bhatnagar and I can understand that from which type of ppt will we understand the concept. I have tried very much!
Hope you like it!
Life processes
This document summarizes the seven life processes: growth, respiration, movement, nutrition, sensitivity, reproduction, and excretion. It provides examples of how each process is important for living things. Growth allows organisms to obtain food and defend themselves. Respiration provides oxygen to living things. Movement enables obtaining food, water and escaping danger. Nutrition provides materials for growth. Sensitivity allows detecting dangers and pleasures. Reproduction ensures species continuation. Excretion removes waste from organisms. All seven processes are equally important for sustaining life.
VII-nutrition in plants
1. Nutrients like carbohydrates, fats, proteins, vitamins, and minerals are components of food that help living organisms build their bodies, grow, repair damage, and provide energy for life processes.
2. There are two main modes of nutrition - autotrophic nutrition where organisms can produce their own food (like plants), and heterotrophic nutrition where organisms obtain food directly or indirectly from plants.
3. Photosynthesis is the process by which plants produce their own food, using sunlight, water, carbon dioxide, and chlorophyll to produce carbohydrates and oxygen through reactions in the leaves.
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1) The document discusses different types of nutrition including autotrophic nutrition, heterotrophic nutrition, and holozoic nutrition. It provides examples of amoeba to illustrate holozoic nutrition.
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3) The different types of holozoic nutrition are defined including carnivores, omnivores, and herbivores. Examples of organisms that use each type are given along with diagrams of stomach structures.
Life process
The document discusses different types of nutrition processes. Autotrophic nutrition is the process where organisms make their own food using inorganic substances, like plants using photosynthesis. Heterotrophic nutrition is where organisms get food from other organisms, like animals obtaining nutrients from eating plants or other animals. Parasitic nutrition is where organisms live in or on a host organism and obtain nutrients from the host's body.
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The document discusses various life processes in living organisms including nutrition, respiration, transportation, and excretion. It provides details on photosynthesis, human digestion, the circulatory and respiratory systems, and the process of excretion in humans and plants. Key life processes include taking in nutrients and excreting waste to survive. Photosynthesis allows plants to produce their own food, while animals rely on ingesting other organisms. Transportation of nutrients, gases, and wastes occurs through circulatory and respiratory systems.
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This document describes the classification and characteristics of vascular plants. It discusses how vascular plants have translocation systems made of phloem and xylem tubes that transport food and water. The key systems in vascular plants are also summarized, including roots that absorb water and nutrients, stems that support the plant and transport fluids, leaves that perform photosynthesis, and flowers, fruits, and seeds that reproduce the plant. Different types of fruits, seeds, and methods of seed dispersal are also outlined.
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Plants Exam Review
- 2. Plants are living things because they are born, eat, grow, interact, reproduce and die. Plants are different from animals because: • Plants do their own food and animals eat other living things. • Plants can’t move and animals can. • Plant are born from seeds or spores and animals are born from eggs or from their mother’s womb.
- 4. ROOTS Hold the plant in the ground. Absorb water and minerals for the plant. Plants can have: Main and secondary roots -> there are roots which are bigger than other ones. All the roots the same size. Edible roots -> roots that we can eat, like carrots.
- 5. LIGNEOUS: STEM • Holds the branches and leaves of the plant. • Transports water and minerals from the roots to the leaves. Hard and thick. Like in trees and bushes. HERBACEOUS: Flexible and thin. Like in grasses and some flowers. BULBS: Grow under the soil. Like onions.
- 6. LEAVES They are the part of the plant that does PHOTOSYNTHESIS PARTS OF THE LEAF Edge Petiole There are two kinds of trees according to their leaves: DECIDUOUS: they lose all their leaves in autumn. EVERGREEN: they change their leaves little by little. Blade Apex Vein
- 7. KINDS OF PLANTS BY THEIR STEM
- 8. TREES They are the plants that live the longest. The branches grow from different places of the trunk. The roots are deep, strong and big. The bigger the tree is, the bigger the roots are. The highest part is the crown. It is where the leaves, flowers and fruits grow. They have a ligneous stem. It is thick and strong.
- 9. BUSHES They are smaller than trees. They a have ligneous branches. Hard and thick. All the branches grow from the same spot.
- 10. GRASSES They have a herbaceous stem. They are small and have small roots. They don’t live for a long time.
- 11. KINDS OF PLANTS BY THEIR USE
- 12. ORNAMENTAL People use them to decorate houses, gardens, parks…
- 13. NUTRITIOUS Food for living things. We can eat different parts from different plants: seeds, fruit, leaves, roots, stem… WHEAT ASPARAGUS PEAR
- 14. AROMATIC People use them to give good smell and taste to foods. ROSEMARY MINT
- 15. OTHER HERBS They are harmful to other plants and they have to be removed from the soil. They are harmful because they absorb the water and nutrients of the plants we use.
- 16. PLANTS FEEDING
- 17. PHOTOSYNTHESIS The plants do their food following these steps: 1st The roots absorb water and minerals (xylem sap). 2nd Xylem sap goes to the leaves. 3rd The leaves get carbon dioxide(CO2) and sunlight. 4th With the sunlight and the CO2 the xylem sap transforms into phloem sap (food prepared for the plant to eat). 5th The phloem sap moves around the plant to feed it.
- 18. RESPIRATION PHOTOSYNTHESIS During day time the plant absorbs carbon dioxide and expels oxygen. This happens during photosynthesis. During night time the plant absorbs oxygen and expels carbon dioxide. This process is called respiration. RESPIRATION
- 20. Flowers have the plants’ reproductive organs. Pistil Petal • Calyx: group of small green leaves called sepals. • Corolla: group of petals. It is around the reproductive organs. • Stamens: male reproductive organs. They make pollen. • Pistil: female reproductive organ. It has ovules inside. Ovules Corolla Calyx Stamen Sepal
- 21. FRUIT AND REPRODUCTION When the pollen gets into the pistil the flower starts to change: • The petals fall down and it transforms into a fruit. • The seeds are inside the fruit. Each seed can produce a new plant. Fruits can be 2 types: • Fleshy fruits: with a lot of water inside. They usually have a lot of seeds. • Nuts: with a hard shell and very little water.