Lesson: What is germination and what conditions are required

Lesson: What is germination and what conditions are required?

Multiple Choice

What is transported from the stigma to the ovary by the pollen tube?

• Pollen grain

• Pollen nucleus

• Ovule

Multiple Choice

What is fertilization in plants?

• The pollen grain joins with the ovule cell.

• The pollen grain nucleus joins with the ovule cell nucleus.

• The pollen grain joins with the ovary.

Multiple Choice

After fertilisation, what does the ovary develop into?

• Flower

• Seed

• Fruit

Multiple Choice

After fertilisation, what does the ovule develop into?

• Seed

• Flower

• Fruit

Agree the outcomes

• Describe the structures of a seed

• Describe how the germination of seeds occurs

• Explain the conditions required for the germination of seeds

What is germination?

When a seed starts to grow

How does germination work?

https://www.youtube.com/watch?v=L031u02IgX8&list=RDCMUC4KN50fal7f45fx2DqG7ttg&start_radio=1&rv=L031u02IgX8&t=18

Multiple Choice

The seed absorbs water very quickly. What does this cause to happen?

• The seed swells and hard coat stays as it is

• The seed swells and hard coat splits

• The seed shrinks and hard coat splits

Multiple Choice

In which direction does the root grow?

• Downwards

• Upwards

• Sideways

Multiple Choice

In which direction does the shoot grow?

• Sideways

• Downwards

• Upwards

Multiple Choice

How does the plant make its own food?

• Respiration

• Photosynthesis

• Diffusion

What do seeds need to grow?

• Water-this allows the seed to swell up and the embryo to start growing

• Oxygen-this is used for respiration, transferring energy for germination

• Warmth- this speeds up reactions in the plant, speeding up germiantion.

Multiple Select

Suggest what the seeds will need to allow them to grow into plants. Choose THREE

• Water

• Oxygen

• Cold

• Warmth

• Carbon dioxide

What is the structure of a seed?

What is the structure of a seed?

• A seed coat- a tough protextive outer covering

• An embryo- the young root and shoot that will develop into adult plant.

• A food store- a store of food (starch)

Multiple Choice

What is the role of the seed coat?

• This develops into the adult plant

• Tough protective outer covering

• This stores food (starch)

Multiple Choice

What is the role of the food store?

• A store of food (starch)

• Tough protective outer covering

• The young root and shoot will develop into an adult plant

Multiple Choice

What is the role of the embryo?

• Tough protective outer covering

• A store of food (starch)

• The young root and shoot will develop into an adult plant

Open Ended

Who do you agree with? Justify your answer.