B1
B2
B3
B4
B5
100

The organelle which controls activities of the cell and contains DNA.

Nucleus.

100

The tissue that contracts to move bones.

Muscle.

100

The type of microorganism that causes the flu.

Virus.

100
The gas needed for photosynthesis.

Carbon Dioxide.

100

The type of neurone carrying impulses from receptors to the CNS.

Sensory.
200

The organelle in the cell where aerobic respiration happens.

Mitochondria.

200

The enzyme that breaks down starch.

Amylase.

200

How pathogens can be spread (3 ways).

Airborne/Water/Close Contact.

200

The word equation for photosynthesis.

Carbon dioxide + Water --> Glucose + Oxygen

200

The function of the relay neurone.

Connects sensory and motor neurones in the CNS.

300

A structure found in plant cells but not animal cells.

Either: Chloroplast, Vacuole, Cell wall.

300

The organ where bile is produced.

Liver.

300

What white blood cells produce to destroy specific pathogens.

Antibodies.

300

A factor that can limit rate of photosynthesis.

Light intensity, Concentration of carbon dioxide and Temperature.

300

What a synapse is.

A gap between 2 neurones.

400
The name of the process used to make identical copies of cells?

Mitosis.

400

How the structure of a red blood cell helps its function.

Large surface area / no nucleus = carries more oxygen.

400

The reason why you can catch a cold more than once.

Viruses mutate/change very quickly.

400

Plants store glucose as starch, what characteristic of glucose allows this to happen?

Insoluble.

400

The reason why reflexes are faster than voluntary responses.

They bypass the brain.

500

Why stem cells are useful in medicine?

Can differentiate into other types of cell.

500
The reason why the left ventricle of the heart has a thicker wall than the right.

It pumps blood at a higher pressure as it is pushed all around the body.

500

How vaccination protects the body from future infection.

Stimulates antibody production, this information is stored by the memory cells in case of future infection.

500

How the body reacts during exercise.

Increased heart rate, Increased breathing rate, More gas exchange.

500

The process of a reflex.

Stimulus, Receptor, Sensory, Relay, Motor, Effector, Response.

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