Plant Biology

Question 1

What conditions are needed for the healthy growth of seedlings?

Answer 1

Damp
Warmth
Light
Air

Question 2

What environmental conditions are necessary for germination?

Answer 2

Warmth
Air
Oxygen

Question 3

What colour is hydrogen carbonate indicator usually?

Answer 3

Red

Question 4

If carbon dioxide is added to hydrogen carbonate indicator what colour does it become?

Answer 4

Orange or yellow

Question 5

If carbon dioxide is removed from hydrogen carbonate then what colour does it become?

Answer 5

Purple

Question 6

How does the structure of a plant help it to get all the things it needs to grow healthily?

Answer 6

Leaves -
It’s job is to carry out photosynthesis.
Flower -
Needed for plant reproduction.
Stem -
Carries water up and transports glucose and nutrients
Roots -
Absorb water and minerals

Question 7

Complete the word equation for photosynthesis.

Answer 7

Light

Carbon dioxide + water —

Question 8

Explain how each feature of a leaf allows for the efficient production of food.
They are flat and wide
They are thin
They have lots of veins
They have little holes (stomata) on the lower surface

Answer 8

To catch more sunlight
To absorb more sunlight and moisten for photosynthesis and creates a larger surface area
To transport lots of oxygen
To take in carbon dioxide and release oxygen.

Question 9

Why do plants require:
Calcium
Magnesium
Nitrogen

Answer 9

To produce new cell walls
To make chlorophyll (the green pigment in leaves
A compound of chlorophyll essential for respiration