Unit 2 - Lesson 7 - Germination

Question 1

What is germination?

Answer 1

A process, controlled by enzymes in which the seed begins to develop into a new young plant.

Question 2

What are the three main factors needed for successful germination?

Answer 2

Water
Oxygen
Warmth

Question 3

Why is water essential in germination?

Answer 3

Let’s the seed swell and the embryo start to grow.

Question 4

Why is oxygen essential in germination?

Answer 4

Needed for aerobic respiration.

Question 5

Why is warmth essential for germination?

Answer 5

Increases growth role and enzyme activity (but very high temperatures denature enzymes).

Question 6

Why do germination seeds use their food stores?

Answer 6

So until the seedlings can produce their own food by photosynthesis.

Question 7

What is the first step of germination?

Answer 7

Water Absorption
- Seed Swells
- Activation of Enzymes

Question 8

What is the second step of germination?

Answer 8

Activation of Enzymes
Starch is broken by amylase into Maltese which broken down by molten into glucose which is broken down by oxygen through a process called aerobic respiration helping the radical to grow.

Question 9

What is the third step of germination?

Answer 9

Radical = ancharage + absorb –> mineral + ions = water