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Flashcards in Photosynthesis and climate change Deck (23):
1

relationship between photosynthesis and cellular respiration

photosynthesis provides the carbohydrates and oxygen for cellular respiration to take place

2

What is the very basis of life on earth?

photosynthesis

3

What happens to oxygen in photosynthesis?

it is oxidized

electrons are pulled further away from oxygen

4

What happens to carbon in photosynthesis?

it is reduced

5

Where does the water come from for photosynthesis?

the soil

6

Thylakoids

formed by the internal membranes of chloroplasts

7

Grana

stacks of thylakoids

8

Thylakoid membranes contain...

large quantities of photoreactive pigments

9

Stroma

the fluid filled space between the thylakoids and the inner membrane

10

Primary producer / autotroph

synthesizes its own food from inorganic sources

11

Gross primary productivity

total amount of chemical energy produced in a given area and time period

12

Net primary productivity

remaining energy that is not lost through cellular respiration within plants

gross - cell resp

13

Consumers

eat living organisms

14

Where is energy primarily used?

90% is used for cellular respiration or is unused

only 10% contributes to biomass

15

Keystone species

has a much greater impact on the distribution and abundance of the surrounding species than its abundance and total biomass would suggest

16

What do changes in the keystone species create?

a trophic cascade

17

What makes an ecosystem more stable?

biological diversity

18

Climate

the prevailing long term temperature and precipitation in an area

19

Weather

consists of specific short term atmospheric conditions of temperature

20

What does variation of temperature and precipitation result in?

different biomes

21

Terrestial biomes

regions characterized by distinct abiotic characteristics and dominant vegetation types

22

Where does carbon naturally come from?

organisms

23

How is carbon eliminated?

by plants

this is why deforestation is such a big problem