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प्रश्न
What is the importance of photosynthesis in the life of the following:
Animals
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उत्तर
Animals eat green plants or eat animals that feed on green plants.
Respiration - The process of biochemical decomposition of organic compounds like simple carbohydrates, glucose, in living cells with the release of energy.
- Energy is released in the form of ATP (Adenosine triphosphate).
- One mole of glucose on complete oxidation yields 38 molecules of ATP.
- It is a high energy molecule which serves as an immediate source of energy.
- It is a form of chemical energy which can be used for all processes in the cell.
- Therefore ATP is called the currency of the cell.
Metabolism Is the set of life-sustaining chemical reactions within the cells of living organisms
Two Types of metabolic processes take place in living things
|
Catabolic process - it is a destructive (breaking down) process in which energy is released. e.g. Respiration |
Anabolic process - It is a construction (uses energy to construct) process in which energy is used for biosynthetic processes. e.g. Photosynthesis |
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संबंधित प्रश्न
The following diagram demonstrates a physiological process taking place in green plants. The whole set up was placed in bright sunlight for several hours. Study the diagram and answer the questions that follow
(i) What aspect of the physiological process is being examined?
(ii) Explain the physiological process mentioned in (i) above.
(iii) Label the parts numbered 1 and 2 in the diagram.
(iv) Write a well-balanced chemical equation for the physiological process explained in (ii) above.
(v) What would happen to the rate of bubbling of the gas if a pinch of sodium bicarbonate is added to the water in the beaker? Explain your answer.
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions:
(i) Name the process intended for study.
(ii) Define the above mentioned process.
(iii) When the weight of the test tube (A & B) is taken before and after the experiment, what is observed? Give reasons to justify your observation in A & B.
(iv) What is the purpose of keeping the test tube B in the experimental setup?
Define the following:
Organic food
Describe an experiment to prove that sunlight is necessary for photosynthesis.
Name the following:
The process by which plants produce their food.
Give technical term:
The form of energy is converted into chemical energy during photosynthesis.
Give technical term:
What is the percentage of CO2 in the air?
Complete the following sentence with appropriate word:
A dark reaction is a __________ reaction.
Where does the carbon that is used in photosynthesis come from?
The swollen basal part of the ______ pistil is the which bears the ______.
