AQA GCSE Biology 9-1 Revision

Flashcards from AQA GCSE Biology 9-1 Revision

Only the animal cell contains a __.

nucleus

Only the bacterial cell contains a __.

cell wall

The digestive system organ that produces acid is __.

C

The digestive system organ that produces bile is __.

B

Digested foods are absorbed into the blood at __ in the digestive system.

E

__ enzyme is produced in the stomach.

Enzyme X

__ enzyme is produced in the small intestine.

Enzyme Y

The enzyme and substrate diagrams are used as a model for __ theory of enzyme action.

lock and key

__ are microorganisms that cause infectious disease.

Pathogens

__ is a childhood disease caused by a microorganism and is not treated by antibiotics.

Measles

If blood glucose levels are too high, __ is produced / released.

insulin

If blood glucose levels fall, __ is produced / released.

glucagon

Stages 2 and 3 on the diagram show __.

gametes

An embryo B is male because cell P has an X chromosome and cell R has a __ chromosome.

Y

__ is an antibiotic which stops bacteria from reproducing.

Penicillin

The first abiotic factor that will affect the growth of plants on a school playing field is __.

light (intensity)

The second abiotic factor that will affect the growth of plants on a school playing field is __.

temperature