Germination

Question 1

Give the definition of Germination.

Answer 1

Where the seed starts to grow

Question 2

Give three conditions the seed needs before germination can start.

Answer 2

Water
Oxygen
Temperature

Question 3

Why does a seed need water, oxygen and a suitable temperature to grow?

Answer 3

Water- to activate the enzymes that break down the food reserves in the seed.
Oxygen- for respiration
Temperature- for the enzymes inside the seed to work.

Question 4

1. Water, grow 2. down, soil 3. shoot 4. leaves

Give 4 steps of germination

Answer 4

1. The seed takes in water and starts to grow using its store of energy.
2. The first root starts to grow down into the soil.
3. 3. The shoot grows up
4. Finally, extra roots grow and the first green leaves appear.

Question 5

Give three steps of how germinating seeds get energy from food stores.

Answer 5

1. A developed seed contains an embryo and a store of food reserved, wrapped in a hard seed coat.
2. When a seed starts to germinate, it gets glucose for respiration from its own food store.
3. Once the plant has grown enough to produce green leaves, it can get its own food for energy from photosynthesis.