At constant temperature, what happened as irradiance rose in Blackman’s tests?
AIt rose, then levelled off
BOnly water set its rate
CIt stopped at dim light
DIt fell as light increased
Answer & Solution
Correct answer: A. It rose, then levelled off
Carbon assimilation increased with irradiance before reaching a plateau.
Keep practising Plant Physiology
Browse all Plant Physiology questions for ICSE Class 10, or explore more Biology topics.
Related questions
Match each physiological water loss term with its distinct botanical definition:Match each environmental factor with its effect on transpiration rate:Match each mechanism of stomatal regulation with its physiological trigger:Match each pathway of plant transpiration with the organ through which water vapor is lostMatch each classic photosynthesis experiment with the factor it demonstrates:Match each factor limiting photosynthetic rate (Blackman's Law) with its effect:Match each plant pigment with its role in solar energy harvesting:Match each phase of photosynthesis with its biochemical event and location: