Question

The rate of photosynthesis is influenced by

• A. Structure of leaf and its chlorophyll content.
• B. Accumulation within the chlorophyll bearing cells of the products of photosynthesis.
• C. Protoplasmic influences including enzymes.
• D. All of the above.

Answer 1

Answer: (D)

All of the above.

The rate of photosynthesis is influenced by following parameters -
The structure of leaf and its chlorophyll content, accumulation within the chlorophyll bearing cells of the products of photosynthesis, protoplasmic influences including enzymes. As the chlorophyll content increases, the rate of photosynthesis increases. The rate of photosynthesis depends on the structure of a leaf, i.e., if the leaf is wide enough, an area which absorbs light energy is more which ultimately increases the rate of photosynthesis. Accumulation of end products in the chlorophyll bearing cells also influences the rate of photosynthesis as the end product act as an inhibitor for the photosynthesis. Protoplasmic influences such as enzymes also influence the rate of photosynthesis as there is an increase in enzyme concentration, the rate of photosynthesis also increases.

So, the correct answer is option D.