Structures and Processes of Life: Plants

Question 1

The 4 Plant Organs

Answer 1

1. Root
2. Stem
3. Leaf
4. Flower
   (Can also have buds, fruit and seeds)

Question 2

2 Functions of the root

Answer 2

1. Anchors and supports the plant in the soil.

2. Absorbs water and minerals from the soil.

Question 3

2 Functions of the stem

Answer 3

1. Supports the buds, leaves and flowers.

2. Carries water and minerals from the roots to the lesves and flowers.

Question 4

2 Functions of the leaf

Answer 4

1. Produces food by photosynthesis.

2. Allows the exchange of gases with the atmosphere.

Question 5

The role of the flower

Answer 5

The role of the flower is sexual reproduction.

Question 6

Two types of transport tissue

Answer 6

1. Xylem tissue transports water and minerals from the soil through the roots to the leaves.
2. Phloem tissue transports food (glucose) made during photosynthesis around the plant.

Question 7

Transpiration

Answer 7

The loss of water vapour from the surface of a plant (caused by evaporation).

Question 8

Vascular bundles

Answer 8

Xylem tissue and phloem tissue are found together in vascular bundles.

Question 9

Stomata

Answer 9

Small pores on the underside of leaves through which gases and water pass out of the plant.

Question 10

A Tropism

Answer 10

The directional growth response of a plant to stimulus.

Question 11

Phototropism

Answer 11

The growth of a plant toward light.

Question 12

Geotropism

Answer 12

The growth of a plant in response to gravity.