Energy and Matter In An Ecosystem

Question 1

Law of conservation of energy

Answer 1

energy can’t be created or destroyed only transformed or transferred

Question 2

Chemotrophic Organisms

Answer 2

use simple inorganic chemical compounds containing sulfur and iron as their source of energy and matter.

Question 3

Autotrophs

Answer 3

synthesise organic compounds from inorganic raw materials. (can create their own food)

Question 4

Heterotrophs

Answer 4

Can not synthesise their own food so they take energy form other organisms by consuming them

Question 5

equation for Photosynthesis

Answer 5

carbon dioxide + water + sunlight —> glucose + oxygen

Question 6

Biomass

Answer 6

the total mass of biological matter (living or dead) in a given area

Question 7

gross primary productivity (GPP)

Answer 7

total amount of energy that flows through the producers (kJ m-2 year -1)

Question 8

Net primary productivity

Answer 8

the amount of energy available to consumers

Question 9

Equation to form ATP

Answer 9

Glucose + oxygen —> carbon dioxide + water + ATP