lesson 18 - energy & nutrient acquisition I

Question 1

why is surface area to volume ratio important?

Answer 1

there is more space for diffusion to occur

Question 2

autotrophs

Answer 2

organism gets carbon from non-living things

Question 3

heterotrophs

Answer 3

organism gets carbon from other living things

Question 4

photo

Answer 4

light energy

Question 5

chemo

Answer 5

gets energetic from chemical reactions

Question 6

photo heterotroph

Answer 6

light energy, organic carbon

Question 7

chemo heterotroph

Answer 7

uses chemical for energy and gets carbon from other living things

Question 8

what do chloroplasts do?

Answer 8

convert light to chemical energy

Question 9

% of solar energy used by life?

Answer 9

5%

Question 10

what light to plants use?

Answer 10

40% of sunlight (visible spectrum)

Question 11

what is heliotropism?

Answer 11

plants track the sun

Question 12

what is phototropism?

Answer 12

plants grow towards the sun

Question 13

how do fungi get nutrients?

Answer 13

secrete enzymes, absorb nutrients

Question 14

what are hyphae?

Answer 14

filaments that increase surface area

Question 15

what is mycelium

Answer 15

a network of hyphae for absorption

Question 16

what is haustoria?

Answer 16

fungal structures that steal nutrients

Question 17

what are mycorrhizae?

Answer 17

The fungus helps the plant by absorbing water and nutrients (like phosphorus) from the soil.
In return, the plant gives the fungus some of the sugar it makes from the sun through photosynthesis
fungi-plant symbiosis

Question 18

what are the 4 digestion steps?

Answer 18

ingest, digest, absorb, eliminate

Question 19

what are the 4 feeding types?

Answer 19

filter, substrate, fluid, bulk