Seeds & Germination

Question 1

Embryo root and embryo shoot

Answer 1

the young root and shoot that will become the adult plant. You may see this called ‘embryo root and shoot’

Question 2

Food store

Answer 2

a store of lipids and starch for the young plant to use until it is able to carry out photosynthesis.

Question 3

Seed coat

Answer 3

tough protective outer covering

Question 4

Three main factors are needed for successful germination:

Answer 4

• Water
• Oxygen
• Warmth

Question 5

how is water useful in germination?

Answer 5

causes the seed to swell, and activates the enzymes required for growth.

Question 6

how is oxygen useful in germination?

Answer 6

required for aerobic respiration, which provides the energy needed for the plant to grow.

Question 7

how is warmth useful in germination?

Answer 7

increases the rate of enzyme activity, which in turn increases the rate of growth. However, very high temperatures can denature enzymes and so may slow or stop its growth.