Transport in plants (xylem and phloem) — KCSE Biology

KCSE Biology · 80 practice questions · 3 syllabus objectives

34 easy24 medium22 hard

What You'll Learn

Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.

Describe the structure of xylem and phloem

Explain the mechanisms of water and food transport in plants

Transport in plants (xylem and phloem)

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easySHORT ANSWER3 marks

Compare the transport of sugars in plants and animals. Give two differences.

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Part (a) — 3 marks

In plants, transport occurs through xylem (water) and phloem (sugars); in animals it occurs through blood vessels (1 mk)

Plants have no pump; animals have a heart that pumps blood (1 mk)

Transport in plants is mainly passive (osmosis, transpiration pull); in animals it is active (heart-driven) (1 mk)

easySHORT ANSWER3 marks

Compare the transport of sugars in plants and animals. Give two differences.

View Marking Scheme

Part (a) — 3 marks

In plants, transport occurs through xylem (water) and phloem (sugars); in animals it occurs through blood vessels (1 mk)

Plants have no pump; animals have a heart that pumps blood (1 mk)

Transport in plants is mainly passive (osmosis, transpiration pull); in animals it is active (heart-driven) (1 mk)

easySHORT ANSWER3 marks

Compare the transport of mineral salts in plants and animals. Give two differences.

View Marking Scheme

Part (a) — 3 marks

In plants, transport occurs through xylem (water) and phloem (sugars); in animals it occurs through blood vessels (1 mk)

Plants have no pump; animals have a heart that pumps blood (1 mk)

Transport in plants is mainly passive (osmosis, transpiration pull); in animals it is active (heart-driven) (1 mk)

Compare the transport of mineral salts in plants and animals. Give three differences.

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