Home / Question Bank / Biology / Photosynthesis in Higher Plants / Question 10 NEET Biology Class 11 Factors affecting photosynthesis Easy Single correct
A crop is grown under bright sunlight with adequate water, but the surrounding air has an unusually low CO₂ concentration. According to Blackman's Law of Limiting Factors, what would you expect to happen to the rate of photosynthesis if light intensity is increased further while CO₂ availability stays low? (A) The rate of photosynthesis would keep increasing in proportion to light intensity, regardless of CO₂ availability, since light is always the master factor (B) The rate of photosynthesis would show little to no further increase, because CO₂, being the factor nearest its minimal level, is limiting the rate, not light (C) The rate of photosynthesis would fall to zero immediately, since any deficiency in one factor completely stops the process (D) The rate of photosynthesis would increase because higher light intensity raises leaf temperature, which increases CO₂ solubility in the mesophyll cells Show answer and explanation ← Question 9 All Photosynthesis in Higher Plants questions More NEET Biology chapters © 2026 Lumi (Aikolumi Software Pvt Ltd). Original questions written by Lumi. Free to view and practise on this site. Copying, republishing or reproducing these questions, options or solutions, in print or online, is not permitted.
Practising is step one. Knowing what to practise next is the hard part. The Lumi app tracks every answer, finds the concepts you're losing marks on, and schedules your revision with FSRS before you forget.
Start learning free 