Ecosystem process

Question 1

aerobic respiration

Answer 1

Chemical reaction where glucose reacts with oxygen to release energy, carbon dioxide, and water.

Question 2

algae

Answer 2

Green unicellular or multicellular organisms that perform photosynthesis and live underwater.

Question 3

anaerobic respiration

Answer 3

Chemical reaction that takes place without oxygen. Glucose is converted into lactic acid and energy is released.

Question 4

bioaccumulation

Answer 4

The build up of toxic chemicals inside organisms in a food chain.

Question 5

chlorophyll

Answer 5

Green pigment that absorbs light for use in photosynthesis.

Question 6

co-exist

Answer 6

Plants and animals living in the same habitat at the same time.

Question 7

community

Answer 7

The collection of the different types of organism present in an ecosystem.

Question 8

consumer

Answer 8

Organisms that eat other organisms as food.

Question 9

deficiency

Answer 9

A lack of minerals, that causes poor growth.

Question 10

ecosystem

Answer 10

The name given to the interaction between plants, animals, and their habitat in a particular location.

Question 11

fermentation

Answer 11

Chemical reaction used by microorganisms to convert glucose into ethanol, carbon dioxide, and energy.

Question 12

fertiliser

Answer 12

Chemical containing minerals, normally applied to soil.

Question 13

food chain

Answer 13

A diagram that shows the transfer of energy between organisms.

Question 14

food web

Answer 14

A diagram showing a set of linked food chains.

Question 15

habitat

Answer 15

The area in which an organism lives.

Question 16

haemoglobin

Answer 16

The substance in blood that carries oxygen around the body.

Question 17

interdependence

Answer 17

The way in which living organisms depend on each other to survive, grow, and reproduce.

Question 18

magnesium

Answer 18

A mineral needed by plants for making chlorophyll.

Question 19

niche

Answer 19

A particular place or role that an organism has in an ecosystem.

Question 20

nitrates

Answer 20

Minerals containing nitrogen for healthy growth.

Question 21

oxygen debt

Answer 21

Extra oxygen required after anaerobic respiration to break down lactic acid.

Question 22

phosphates

Answer 22

Minerals containing phosphorus for healthy roots.

Question 23

photosynthesis

Answer 23

The process plants use to make their own food, glucose. In photosynthesis, carbon dioxide and water react together to make glucose and oxygen.

Question 24

plasma

Answer 24

The liquid part of blood, which carries carbon dioxide to the lungs where it is exhaled.

Question 25

population

Answer 25

The number of plants or animals of the same type that live in the same area.

Question 26

potassium

Answer 26

A mineral needed by plants for healthy leaves and flowers.

Question 27

predator

Answer 27

An animal that eats other animals.

Question 28

prey

Answer 28

An animal that is eaten by another animal

Question 29

producer

Answer 29

Organism that makes its own food using photosynthesis.

Question 30

stomata

Answer 30

Holes found on the bottom of the leaf that allow gases to diffuse in and out of the leaf.

Question 31

Equation for Photosynthesis

Answer 31

Carbon dioxide + water —- oxygen + glucose

Question 32

Equation for Aerobic respiration

Answer 32

glucose+oxygen——carbon dioxide + water

Question 33

Equation for Anaerobic respiration

Answer 33

glucose— lactic acid

Question 34

Equation for Fermatation

Answer 34

Glucose ——Ethanol + carbon dioxide