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Question
Draw a neat and well-labeled diagram of the apparatus you would set up to show that oxygen is given out during photosynthesis.
Solution
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RELATED QUESTIONS
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.
Describe an experiment to prove that sunlight is necessary for 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?
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
A variegated leaf (one that has white as well as green patches) will only photosynthesize in the green areas.
Match the terms of column I with those in column II:
| Column I | Column II |
| (i) Stomata closed | (a) decomposers |
| (ii) Autotrophs | (b) light reaction |
| (iii) By-products of photosynthesis | (c) animals |
| (iv) Photolysis | (d) during night |
| (v) Bacteria and fungi | (e) green plants |
| ( f) oxygen |
During photosynthesis, the oxygen in glucose comes from
Name the following:
The organisms that can be called "natural purifiers" of the air.
"Oxygen is a waste product of photosynthesis." Comment.
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black 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?
Complete the following sentence with appropriate word:
A light reaction is a ___________ reaction.
Complete the following sentence with appropriate word:
4OH ——> _____ + O2
Write the functional activity of the following structure:
Thylakoids
Choose the Odd One Out
Fill in the blank by rearranging the letter in the bracket.
Pigment involved in the food synthesis is _________ (phllylochor).
What are primary producers?
Plants may inhale carbon dioxide for photosynthesis but need ______ for their living.
Plants inhale and exhale continuously through the ______.
What is the end product of photosynthesis?
Study the pictures below and then complete the table by putting a plus (+) if the shoot or root grows towards the stimulus and a minus (-) if it grows away from it.
| Stimulus | Light | Gravity |
| Shoot | + | - |
| Root | ? | + |
