Energy Flow Through Ecosystems

Question 1

Producers

Answer 1

Autotrophs, get energy from nonliving sources

Question 2

Consumers

Answer 2

Heterotrophs, get energy from living or once living sources

Question 3

Photosynthesis

Answer 3

Uses energy from the sun
6CO2 + 6H2O= C6H12O6 + 6O2

Question 4

What organisms perform photosynthesis?

Answer 4

Plants and cyanobacteria

Question 5

Chemosynthesis

Answer 5

Uses energy from chemicals like sulfur and methane
6CO2 + 18H2S + 3O2 = C6H12O6 + 12H2O + 18S (sulfur version)

Question 6

What organisms perform chemosynthesis?

Answer 6

Deep sea bacteria

Question 7

What is the same in photosynthesis and chemosynthesis?

Answer 7

Both produce sugars and use nonliving energy sources

Question 8

How do consumers get energy?

Answer 8

They ingest organisms and digest them to release ATP during cellular respiration

Question 9

Herbivores

Answer 9

Eat vegetation

Question 10

Carnivores

Answer 10

Eat meat

Question 11

Omnivores

Answer 11

Eat meat and vegatation

Question 12

Detritivores (decomposers)

Answer 12

Eat dead materials

Question 13

Food chains

Answer 13

Trace energy flow and show trophic levels

Question 14

Trophic levels

Answer 14

Levels of nourishment in a food chain
1 = producer, 4 = tertiary consumer

Question 15

Food webs

Answer 15

Show multiple food chains and how they connect

Question 16

Rule of 10

Answer 16

Only 10% of energy from the previous level is passed on

Question 17

Where does most energy obtained go?

Answer 17

90% of energy is used for metabolism or released as heat

Question 18

Trophic pyramid

Answer 18

Models energy flow through ecosystem

Question 19

Energy pyramid

Answer 19

Represents energy level in each level, smaller as you go up, numbers represent amount of organisms at the level, energy decreases as you go up since less energy sustains less organisms

Question 20

Biomass pyramid

Answer 20

Represents total mass of living matter at each trophic level