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Question
Tick the most appropriate answer.
Exhaled air contains
Options
more carbon dioxide
more oxygen
more nitrogen
more hydrogen
Solution
more carbon dioxide
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RELATED QUESTIONS
Short answer question.
Which four of the following are needed for photosynthesis in a leaf:
(i) Carbon dioxide:
(ii) Oxygen:
(iii) Nitrates :
(iv) Water:
(v) Chlorophyll:
(vi) Soil:
(vii) Light:
State whether the following statement is True or False:
Green plants prepare their food by using two raw materials, oxygen and water.
Long answer question.
What is the role of chlorophyll in photosynthesis?
Long answer question.
Do plants need oxygen? If so, what is its source?
Attempt any TWO of the following:
Describe ‘any two’ factors affecting the rate of photosynthesis.
Two groups (A & B) of bean plants of similar size and same leaf area were placed in identical conditions. Group A was exposed to the light of wavelength 400-450 nm & Group B to light of wavelength of 500-550 nm. Compare the photosynthetic rate of the 2 groups giving reasons.
Process of photosynthesis is ______.
Photorespiration is favoured by :
According to Blackman, respiration of carbohydrates and fats is ______.
The optimum temperature for the process of photosynthesis is ______.
