Question:
$C_4$ plants are more efficient in photosynthesis than $C_3$ plants due to
$C_4$ plants are more efficient in photosynthesis than $C_3$ plants due to
Updated On: Jul 19, 2024
- higher leaf area
- presence of larger number of chloroplasts in the leaf cells
- presence of thin cuticle
- lower rate of photorespiration.
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The Correct Option is D
Approach Solution - 1
Plants that utilize the Calvin cycle during the dark phase of photosynthesis are referred to as C3 plants, while those employing the Hatch-Slack pathway during this phase are known as C4 plants. C4 plants have evolved a specialized anatomical structure in their leaves called Kranz anatomy, which aids in reducing or preventing photorespiration. In contrast, C3 plants lack such anatomical adaptations in their leaves, leading to a higher rate of photorespiration, thus decreasing their photosynthetic efficiency.
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Approach Solution -2
\(C_4\) plants are more efficient than \(C_3\) due to their high rate of photosynthesis and reduced rate of photorespiration.
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Concepts Used:
Photosynthesis in Higher Plants
Processes Of Photosynthesis in Higher Plants:
Photosynthesis in higher plants involves the following processes:
- Light Reaction
- Dark Reaction
Light Reaction:
- This phenomenon occurs in the presence of light.
- The pigment absorbs light and produces energy in the form of ATP.
- The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.
Dark Reaction:
This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:
- Calvin Cycle (C3 Cycle)
- C4 Cycle (Hatch and Slack Pathway)