Light Stage - Absorption Of Light

Question 1

What is white light composed of?

Answer 1

White light is composed of different wavelengths (colours) of light

Question 2

What can different wavelengths of light also be called?

Answer 2

Different colours of light

Question 3

What does each colour of light (which makes up white light) represent?

Answer 3

Each colour represents a different level of energy

Question 4

What do chloroplast contain?

Answer 4

Chloroplasts contain a range of pigments including chlorophyll (catalyst for photosynthesis)

Question 5

Why does the chloroplast contain a range of different pigments?

Answer 5

Each of the chloroplast pigments absorbs a different colour of light

Question 6

What is the main advantage of the chloroplast having a range of pigments?

Answer 6

By having a range of pigments, plants ensure that they can absorb a range of colours of light i.e. they can absorb as much light as possible

Question 7

What colours of white light are absorbed by the chloroplast?

Answer 7

All colours of white light except green

Question 8

What happens to green light when it hits a plant?

Answer 8

Green light is reflected by plants

Question 9

Green light is reflected by light, what affect does this have on the plant?

Answer 9

This makes most plants green in colour

Question 10

Why are most plants green in colour?

Answer 10

Because green light is reflected by plants