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प्रश्न
What is the importance of photosynthesis in the life of the following:
Animals
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
Cochlea, Malleus, Pinna, Stapes, Incus.
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?
Give suitable biological reasons for the following statement :
All life on Earth is supported by Photosynthesis.
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger? 
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
What is Thigmotropism? Give one example.
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow : 
Name the factor studied in this experiment.
State the main functions of the following:
Medulla Oblongata
What is the importance of photosynthesis in the life of the following:
Non-green plants
Complete the following food chain by writing the names of appropriate organisms in the blank:
Grass → __________ → Lion
Respiration is said to be the reversal of photosynthesis.
Name the following:
The process by which plants produce their food.
Give technical term:
Organisms which cannot prepare their own food by photosynthesis.
Choose the Odd One Out
Where do the light-dependent reaction and the Calvin cycle occur in the chloroplast?
Read the following sentences about photosynthesis.
- Sunlight, carbon dioxide, chlorophyll and water are necessary.
- Oxygen is absorbed.
- Leaves carry out photosynthesis.
- Proteins are made during photosynthesis.
Choose the correct pair of sentences that are true to photosynthesis.
A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to ______.
The end product of photosynthesis is ______.
Plants may inhale carbon dioxide for photosynthesis but need ______ for their living.
Define the following term:
Photolysis of water
