F

Question 1

Fats

Answer 1

Lipid molecules that consist of glycerol and three fatty acids. Fats are energy rich as they contain a high proportion of carbon and hydrogen atoms.

Question 2

Fatty Acids

Answer 2

Molecules that combine with glycerol to form fats.

Question 3

Fermentation

Answer 3

(1) anaerobic respiration in which glucose is converted into ethanol and carbon dioxide; (2) an industrial process in which microorganisms are used to make a useful product.

Question 4

Fermenter

Answer 4

A large container in which fungi or bacteria are grown under sterile, controlled conditions.

Question 5

Fertilisation

Answer 5

The fusion of the male and female sex cells. e.g. sperm and egg, to form a zygote (fertilised egg) that grows into a new individual.

Question 6

Fertility drug

Answer 6

A drug that is used to increase the chances of a woman becoming pregnant.

Question 7

Fetus

Answer 7

A stage during development of a mammal when all the major organs are recognisable.

Question 8

Fibre

Answer 8

Indigestible plant material, mainly cellulose and lignin that provides bulk to assist the passage of food through the gut by peristalsis.

Question 9

Fitness

Answer 9

The probability of an organism surviving and reproducing in the environment in which it is found.

Question 10

Flaccid

Answer 10

A plant cell that has lost water by osmosis so that the cell contents no longer push outwards against the cell wall is described as flaccid.

Question 11

Food chain

Answer 11

This shows the feeding relationships in a community beginning with a producer. Each organism is fed on by the next organism in the chain. Food chains show the flow of energy and nutrients.

Question 12

Food web

Answer 12

A network of interconnected food chains showing the energy flow through an ecosystem.