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प्रश्न
Choose the correct answer:
Photosynthesis is more active in ___________
पर्याय
green light
red light
Yellow light
violet light
उत्तर
Photosynthesis is more active in Red light
APPEARS IN
संबंधित प्रश्न
Formalin, Iodine, DDT, Lime
The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both testtubes are kept in sunlight. Answer the questions that follow:
(i) Name the physiological process that releases the bubbles of oxygen.
(ii) Explain the physiological process as mentioned above in Q2 (a)(i).
(iii) What is the purpose of keeping a snail in test-tube ‘B’?
(iv) Why does test-tube ‘B’ have more bubbles of oxygen?
(v) Given an example of a water plant that can be used in the above process.
(vi) Write the overall chemical equation for the above process.
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow :
Explain the process of Photosynthesis.
Answer the following:
Give the overall chemical equation of photosynthesis in green plants.
Answer the following:
Mention two significant advantages of photosynthesis to the living world as a whole.
Define the following:
Organic food
Describe an experiment to prove that sunlight is necessary for photosynthesis.
Choose the correct answer:
Which of the following gas is used in photosynthesis?
The number of water molecules required in the chemical reactions to produce one molecule of glucose during photosynthesis is
A plant is kept in a dark cupboard for 48 hours before conducting any experiment on photosynthesis in order to
Name the following:
The category of organisms that prepare their own food from basic raw materials.
Name the membrane that connects thylakoid of one granum With the other granum.
Complete the following sentence with appropriate word:
4OH ——> _____ + O2
The chemical reaction occurs during photosynthesis is ______.
Higher Order Thinking Skill.
Imagine that student A studied the importance of certain factors in photosynthesis. He took a potted plant and kept it in dark for 24 hours. In the early hours of the next morning, he covered one of the leaves with dark paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
- What aspect of photosynthesis was being investigated?
- Why was the plant kept in the dark before the experiment?
- How will you prove that starch is present in the leaves?
- Name the raw materials needed for photosynthesis.
Only green plants have the unique capacity to release ______ into the atmosphere.
When iodine solution is added for testing starch, part of the leaf with ______ turns a blue-black color.
Give an example for micronutrients.
Study the diagram given below and fill in the blanks with suitable words:
In order to prove that carbon dioxide is necessary for
(a) ______, a potted plant is placed in dark for 48 hours to (b) ______ the leaves. A part of a leaf is inserted into a conical flask containing potassium hydroxide solution. This is to absorb (c) ______ from the flask. The plant is then placed in sunlight for a few hours. The experimental leaf is tested for starch. The part of the leaf that was inside the conical flask turns (d) ______, whereas the part of the left outside turns (e) ______ in colour.
Define the following term:
Photolysis of water
