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The loss of water in C₄ plants compared to C₃ plants for the same amount of CO₂ fixed is
Options
(a) Half
(b) one-third
(c) one-fourth
(d) double
Correct Answer:
one-third
Explanation:
The loss of water in C₄ plants compared to C₃ plants for the same amount of CO₂ fixed is one-third. C₄ plants have a competitive advantage over plants possessing the more common C₃ carbon fixation pathway under conditions of drought, high temperatures and nitrogen or CO₂ limitation. When grown in the same, environment, at 30°C, C₃ grasses lose approximately 833 molecules of water per CO₂ molecules that is fixed, whereas C₄ grasses lose only 277 water molecules per CO₂ moleculr fixed. This shows that the
Related Questions: - Which one of the following is not used for ex-situ plant conservation?
- Which is the particular type of drug that is obtained from the plant
- Dr F. Went noted that if coleoptile tips were removed and placed on agar for one hour
- The term ‘linkage’ was coined by:
- Certain bacteria living in the soil, poor in oxygen convert nitrates
Topics: Photosynthesis in Higher Plants
(153)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following is not used for ex-situ plant conservation?
- Which is the particular type of drug that is obtained from the plant
- Dr F. Went noted that if coleoptile tips were removed and placed on agar for one hour
- The term ‘linkage’ was coined by:
- Certain bacteria living in the soil, poor in oxygen convert nitrates
Topics: Photosynthesis in Higher Plants (153)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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