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Karnataka Board PUCPUC Science Class 11

By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain. - Biology

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Question

By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain.

Answer in Brief

Solution

The leaves of C4 plants have a special anatomy called Kranz anatomy. This makes them different from C3 plants. Special cells, known as bundle-sheath cells, surround the vascular bundles. These cells have a large number of chloroplasts. They are thick-walled and have no intercellular spaces. They are also impervious to gaseous exchange. All these anatomical features help prevent photorespiration in C4 plants, thereby increasing their ability to photosynthesise.

Cross section of a leaf of a C4 plant

The anatomy of the leaves of C3 plants is not of the Kranz type. Pillar tissue is found in the mesophyll in its leaves. same type of chlorophyll was found in all the cells. Let's go. Both pigment systems are found in the photosynthesis system.

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Chapter 13: Photosynthesis in Higher Plants - Exercises [Page 224]

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NCERT Biology [English] Class 11
Chapter 13 Photosynthesis in Higher Plants
Exercises | Q 2 | Page 224

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