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प्रश्न
What is the law of limiting factors?
उत्तर
Blackman (1905) established the law of limiting factors in connection with photo-synthesis. According to this law when a process is conditioned to its rapidity by a number of separate factors, the rate of the process is limited by the pace of the lowest factor, i.e., the factor which is present in a minimum amount.
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संबंधित प्रश्न
Give biological reasons for the following statements : In some xerophytes leaves are modified into spines
Give one example of An aquatic plant used in the laboratory to demonstrate O2 liberation during photosynthesis
Mention the exact location of the following :
Thylakoids
Define the following:
Plant pigments
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.
Photosynthesis occurs in underground organs as well as in aerial ones.
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.
Name the following:
The first form of food substance produced during photosynthesis.
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 food chain by writing the names of appropriate organisms in the blank:
Grass → __________ → Lion
Write an experiment to demonstrate that CO2 is necessary for photosynthesis.
Respiration is said to be the reversal of photosynthesis.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A variegated leaf (one that has green as well as white patches) will only photosynthesize in the green areas.
Choose the correct option.
In maize and wheat, the first stable products formed in bundle sheath cells respectively are ________.
During photosynthesis, ________ is produced and stored in the leaf.
The chemical reaction occurs during photosynthesis is ______.
Why should the light-dependent reaction occur before the light-independent reaction?
