Science 8 | Biology | Unit 1. Plants Roots

The following sentences are TRUE (T) or FALSE (F)?

	True	False
Roots always survive harsh conditions that kill the above-ground parts of the plant.
When conditions are difficult – for example, in a cold winter, or a dry summer – some plants allow their above ground parts to die. Only the underground roots continue to live. New shoots (above-ground parts) grow from the roots when conditions become better.

Giải thích

The correct answer

	True	False
Roots always survive harsh conditions that kill the above-ground parts of the plant.
When conditions are difficult – for example, in a cold winter, or a dry summer – some plants allow their above ground parts to die. Only the underground roots continue to live. New shoots (above-ground parts) grow from the roots when conditions become better.

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Choose the correct answer.

Water and minerals are transported from the roots to the leaves through the

stalk

phloem vessels

stomata

xylem vessels

Giải thích

The correct answer

xylem vessels

phloem vessels

stomata

stalk

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Fill in the gap with a suitable word.

Soil is made up of tiny rock particles. There is usually water in the spaces between the particles. There are minerals dissolved in the water.
You may remember that special cells are called

grow out of the surface of roots. Root hair cells provide a really big surface through which water and minerals can be absorbed.

Đáp án

Soil is made up of tiny rock particles. There is usually water in the spaces between the particles. There are minerals dissolved in the water.
You may remember that special cells are called

grow out of the surface of roots. Root hair cells provide a really big surface through which water and minerals can be absorbed.

Giải thích

The correct answer

root hairs

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