Each question in this quiz is timed.
In which part of a cell does aerobic respiration take place?
nucleus
mitochondria
ribosome
What is the function of stomata?
They control the exchange of gases and water loss in the leaf.
They support the leaf and transport food, water and minerals to the plant.
They help the leaves absorb light from the sun.
What is meant by the term carnivore?
An animal that feeds exclusively on animals.
An animal that feeds exclusively on plant material.
An animal that feeds on other animals or plants.
Alleles are different forms of the same gene.
What is the main function of platelets?
They help fight infections.
They carry oxygen throughout the body.
They help blood clot.
What do the initials DNA stand for?
deoxynucleic acid
deoxyribonucleic acid
deoxygenated acid
Which of the following do green plants need to make their own food during the process called photosynthesis?
oxygen
carbon dioxide
water
glucose
sunlight
An exoskeleton is the name given to internal support structure of an animal.
What is a synapse?
The branched projection of a neuron.
A gap between two neurons.
A nerve fibre.
What is the main function of blood plasma?
To help stop bleeding.
To help fight infections.
To carry nutrients, hormones and proteins throughout the body.