Definitions

Question 1

Chloroplast

Answer 1

Absorbs light energy used in photosynthesis to make useful organic compounds

Question 2

Thylakoids

Answer 2

High surface area-increase the rate of photosynthesis.contains photosynthetic pigments- chlorophyll a,b and carotene

Question 3

Photo ionisation

Answer 3

Electrons are excited which leave the chlorophyll

Question 4

Calvin cycle

Answer 4

Uses the products from the light dependant reaction to convert co2 into useful organic compounds like lipids, glucose, amino acids

Question 5

Dehydrogenation

Answer 5

Loss of a hydrogen atom

Question 6

Decarboxylation

Answer 6

Loss of carbon atom

Question 7

Respiratory substrate

Answer 7

any biological molecule that can be respire to release energy

Question 8

Population

Answer 8

All the organisms of a single species in a habitat

Question 9

Community

Answer 9

All the organisms of all the species In a habitat

Question 10

Niche

Answer 10

The role of a species in an ecosystem

Question 11

Trophies level

Answer 11

Each stage of the food chain

Question 12

Respiratory loss

Answer 12

The energy used by organisms for respiration

Question 13

Calorimeter

Answer 13

Used to estimate the amount of energy stored in dry biomass

Question 14

Saprobiontic nutrition

Answer 14

Digestion or break down or organic matter by the extracellular enzymes

Question 15

Saporbionts

Answer 15

Type of decomposed that digests their food by saprobiontic nutrition

Question 16

Mycorrhizae

Answer 16

Fungi that grow in multanistic relationship with plant roots

Question 17

Natural fertiliser

Answer 17

Contains nitrogen and phosphorus in organic compounds

Question 18

Artificial fertilisers

Answer 18

Inorganic chemical compounds that contain nitrogen and phosphorus

Question 19

Leaching

Answer 19

When soluble compounds are washed off by the rain

Question 20

Tropism

Answer 20

The response of a plant to a directional stimulus

Question 21

Taxes

Answer 21

Mobile organisms moves towards or away from a directional stimulus

Question 22

Kinesis

Answer 22

Mobile organisms change their movement in response to a non directional stimulus

Question 23

Reflex

Answer 23

A rapid response to a stimulus without conscious control

Question 24

What is substrate level phosphorylation

Answer 24

When ATP is made without needing ATP synthase …phosphate is added to ADP from another molecule

Question 25

Net primary production

Answer 25

The amount of chemical energy a producer stores at biomass

Question 26

Intra specific competition

Answer 26

Competition amongst member of the same species

Question 27

Inter specific competition

Answer 27

Utalizing a shared resource

Question 28

Keystone species

Answer 28

A species that is critical within on habitat that if it was wiped out it would have a knock on effect

Question 29

Fundamental niche

Answer 29

The environmental tolerances habitats and functional roles that a species has the potential to exploit and display

Question 30

Realised niche

Answer 30

Where organisms interact with one another at various levels, the range of conditions in which a species actually lives and reproduces

Question 31

Niche overlap

Answer 31

When organisms require an charge the same functional niche

Question 32

Resource partitioning

Answer 32

Completion is often avoided by dividing up environmental resources such that each competitor exploits different portions of the resource

Question 33

Convergent evolution

Answer 33

Similar body plans even though the species live in different habitats