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Question
Complete the following sentence with appropriate word:
A plant that does not perform photosynthesis is _______.
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Solution
A plant that does not perform photosynthesis is Fungus.
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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.
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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:
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Choose the correct answer:
The process of photosynthesis occurs by _________
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The rate of photosynthesis continues to rise as long as the intensity of light rises.
Explain the Term Free Energy.
Complete the following sentence with appropriate word:
A light reaction is a ___________ reaction.
Choose the correct option.
The net result of photo-oxidation of water is release of ______.
Gas exchange takes place in plants using _____.
