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प्रश्न
Which of the following is not applicable to the process of photosynthesis?
विकल्प
Oxygen is evolved
Carbon dioxide is absorbed
Carbon dioxide is evolved
Water is utilised
उत्तर
Carbon dioxide is evolved
Explanation:
Carbon dioxide is taken up and oxygen is evolved as a side effect of photosynthesis.
संबंधित प्रश्न
The individual flattened stacks of membranous structures inside the chloroplasts are known as :
A. Grana
B. Stroma
C. Thylakoids
D. Cristae
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 :
Give a balanced chemical equation to represent the process of photosynthesis.
An experiment was set up as shown in the figure alongside. Look at the figure and answer the following questions:
( i) What is the objective of this experiment?
( ii ) Which plant is used in this experiment?
( iii ) Which gas is evolved in this process?
( iv ) What will happen to the rate of evolution of this gas if a pinch of sodium
bicarbonate is added?
(v ) What will happen if the apparatus is kept in dark?
Fill in the blank:
______ is the process which replenishes the atmospheric oxygen which the animal life consumes in respiration.
Fill in the blank:
Photosynthesis produces oxygen and ______.
How does carbon dioxide return to the atmosphere? Explain.
A student in order to study the importance of certain factors of photosynthesis took a potted plant and kept it in the dark for over 24 hours. Then in the early hours of the morning the student covered one of the leaves with black paper in the centre only. Student placed the potted plant in the sunlight for a few hours, and then tested the leaf which was covered with black paper for starch.
(i) What aspect of photosynthesis was being investigated?
(ii) Is there any control in this experiment? If so, state the name.
(iii) Why was the plant kept in the dark before the experiment?
(iv) Describe step by step how the candidate proceeded to test the leaf for the presence of starch.
Choose the correct answer:
Photosynthesis is more active in ___________
The specific function of light energy in the process of photosynthesis is to
Name the following:
The category of organisms that prepare their own food from basic raw materials.
Mention one difference between the following on the basis of what is given in bracket.
Grass and grasshopper (mode of nutrition)
Identify the false statements and rewrite them correctly by changing the first or last word only.
Immediate product of photosynthesis is glucose.
Identify the false statements and rewrite them correctly by changing the first or last word only.
Algae are autotrophs.
What is meant by the photolysis of water?
How is the rate of photosynthesis affected when a green plant gets the green light?
Respiration is said to be the reversal of photosynthesis.
Complete the following sentence with appropriate word:
One of the products of ______of water is oxygen.
Choose the Correct Answer:
A plant is kept in a dark cupboard for about 48 hours before conducting any experiment on photosynthesis to:
Which one of the following is a primary producer?
