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Question
If the rate of respiration becomes more than the rate of photosynthesis, plants will:
Options
continue to live, but will not be able to store food
be killed instantly
grow more vigorously because more energy will be available
stop growing and die gradually of starvation
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Solution
stop growing and die gradually of starvation
Explanation:
When the rate of respiration exceeds the rate of photosynthesis, the plant will stop growing and gradually die of starvation. Initially, the plant will rely on its stored food reserves to meet its energy needs. However, if this imbalance continues, these food reserves will eventually be depleted, leading to the plant’s eventual death.
RELATED QUESTIONS
What is meant by photosynthesis? Why is it so important in nature?
The diagram alongside represents an experiment conducted to prove the importance of a factor in photosynthesis.
Study the same and then answer the questions that follow:
(i) Name the factor being studied in his experiment.
(ii) Why was the plant kept in a dark room before conducting the experiment?
(iii}Why was the experimental leaf then kept in
1. boiling water 2. methylated spirit?
(iv) Name the solution used to test for the presence of starch in the leaf.
(v) What will we observe in the experimental leaf at the end of the starch test?
(vi) Give a balanced chemical equation to represent the process of photosynthesis.
Choose the correct answer:
Which of the following gas is used in photosynthesis?
Are the following statement true or false? Give reason in support of your answer.
The starting point of carbon cycle is the release of carbon dioxide by animals during respiration.
What is the importance of photosynthesis in the life of the following:
Non-green plants
Oxygen given out during photosynthesis comes from water. Explain this statement.
Choose the correct option.
The sequential order in electron transport from PSII to PSI of photosynthesis is ______.
What will happen if you breathe through mouth?
A potted plant with variegated leafes was kept in dark for 24 hours and then placed in bright sunlight. Answer the following questions.
- Which aspect of photosynthesis is being tested in the above diagram?
- Why was the plant kept in the dark for 24 hours?
- After the starch test, what will be the colour of the yellow and green parts of the leaf? Give reasons to support your answer.
