In Jamaica, farmers growing sugar cane often observe root hair cells under a microscope. Which structural feature of root hair cells increases the surface area for water absorption?

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Question

In Jamaica, farmers growing sugar cane often observe root hair cells under a microscope. Which structural feature of root hair cells increases the surface area for water absorption?

Accepted Answer

Long, finger-like projections extending from the cell — Award 1 mark for identifying the long projection. Root hair cells have a hair-like extension that significantly increases surface area for water and mineral uptake from the soil. A is incorrect as the thick cell wall is not the primary adaptation for absorption. C is incorrect as root hair cells have one nucleus. D is incorrect because root hair cells lack chloroplasts as they are underground.

Answer

Long, finger-like projections extending from the cell

Answer

A thick cell wall for support

Answer

A large number of chloroplasts

Answer

Multiple nuclei in each cell

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