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Karnataka Board PUCPUC Science Class 11

Give comparison between the following: Anatomy of leaf in C3 and C4 plants

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Question

Give comparison between the following:

Anatomy of leaf in C3 and C4 plants

Distinguish Between
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Solution

  C3 leaves C4 leaves
1. The leaves do not possess kranz anatomy. The leaves have kranz anatomy.
2. Chloroplasts do not have peripheral reticulum. Chloroplasts have peripheral reticulum.
3. Chloroplast are of one type (monomorphic) There are two types of chloroplasts (dimorphic).
4. Bundle sheath cell usually do not contain chloroplast. Bundle sheath cells posses promient chloroplast.
5. In higher plants operating C3 cycle, all the chloroplasts are granal. There are two types of chloroplasts, granular in mesophy II cells and agranal in bundle sheath cells.
6. Mesophy II cell perform complete photosynthesis. Mesophy II cells perform only initial fixation.
7. Perform photosynthesis only when stomata are open. Perform photosynthesis even when stomata is closed (from CO2 produced in respiration).
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Chapter 11: Photosynthesis in Higher Plants - EXERCISES [Page 152]

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NCERT Biology [English] Class 11
Chapter 11 Photosynthesis in Higher Plants
EXERCISES | Q 9. (c) | Page 152

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