Chapter 2- Photosynthesis Flashcards Preview

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Flashcards in Chapter 2- Photosynthesis Deck (14)
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1
Q

What is light made up of?

A

Of wavelengths

2
Q

Visible light has a range of what?

A

Wavelengths which are on a spectrum of electromagnetic radiation with violet the shortest and red the longest

3
Q

What does chlorophyll absorb and reflect ?

A

Absorbs red and blue light most effectively and reflects green light more than other colours

4
Q

What are the first stages of photosynthesis?

A

Absorption of sunlight - involves chemical substances called pigments

5
Q

Why does chlorophyll appear green to us?

A

Absorbs red and blue light effectively and reflects the green light back to us

6
Q

Oxygen is produced in photosynthesis from what?

A

Photolysis of water

7
Q

What are one of the consequences of photosynthesis

A

The rise in the oxygen concentration of the atmosphere- known as the great oxidation event

8
Q

Photosynthesis caused what?

A

Changes to the earths atmosphere, oceans and rock deposition

9
Q

Why is energy needed in the production of carbohydrate?

A

To produce carbohydrates and other carbon compounds from carbon dioxide

10
Q

What is the formula for plants to make carbohydrate?

A

Carbon dioxide + water –> carbohydrates + oxygen

11
Q

How is the energy produced for the conversion of carbon dioxide into carbohydrates?

A

Obtained by absorbing light

12
Q

What are the limiting factors on the rate of photosynthesis?

A

Temperature, light intensity and carbon dioxide concentration

13
Q

What is said according to the concept of limiting factors ?

A

Only one of the factors is actually limiting the rate of photosynthesis

14
Q

What is photosynthesis?

A

Is the production of carbon compounds in cells using light energy

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