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प्रश्न
What is the law of limiting factors?
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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.
संबंधित प्रश्न
The individual flattened stacks of membranous structures inside the chloroplasts are known as ______.
Name the following:
Three organisms that cannot prepare their own food by photosynthesis.
Fill in the blank:
______ is the process which replenishes the atmospheric oxygen which the animal life consumes in respiration.
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.
Photosynthesis is considered as a process supporting all life on earth.
Give technical term:
Which process is the ultimate source of energy for all living organisms?
Higher Order Thinking Skill.
Imagine that student A studied the importance of certain factors in photosynthesis. He took a potted plant and kept it in dark for 24 hours. In the early hours of the next morning, he covered one of the leaves with dark 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?
- Why was the plant kept in the dark before the experiment?
- How will you prove that starch is present in the leaves?
- Name the raw materials needed for photosynthesis.
Where does the carbon that is used in photosynthesis come from?
The end product of photosynthesis is ______.
Plants may inhale carbon dioxide for photosynthesis but need ______ for their living.
