AQA GCSE Biology 4.2 Organisation overview quiz quiz

Organ, tissue, cell, organ system

Cell, tissue, organ, organ system

Tissue, cell, organ system, organ

Cell, organ, tissue, organ system

It raises the temperature of the reaction so the particles collide more often

It is gradually used up during the reaction to provide the energy needed

Its substrate fits into a specific active site

It changes all of the products back into reactants again

It works faster and faster with no upper limit on the rate

It turns into a completely different substrate molecule

It becomes a permanent catalyst that can never be stopped

It denatures and the active site changes shape

Test for reducing sugars

Test for starch using iodine solution

Test for protein using Biuret reagent

Test for lipids using the emulsion test

Because the body contains two separate hearts that pump blood

Because blood passes through the heart twice per circuit

Because the blood contains exactly two different types of blood cell

Because there are two main arteries leaving the heart to the body

Vein

Capillary

Artery

Alveolus

Plasma

Platelets

White blood cells

Red blood cells

Water and mineral ions upwards

Dissolved sugars in both directions

Oxygen to the roots

Hormones around the plant

Low temperature and cold surroundings

High light intensity and wind

Still, humid air with no breeze at all

Complete darkness with the stomata closed

Measles, caused by a virus

Influenza, caused by a virus

Cardiovascular disease

Malaria, spread by mosquitoes

A bacterial infection only, with no other possible causes

A lack of red blood cells carrying oxygen around the body

Enzymes in the body that have denatured and changed shape

Uncontrolled cell division forming a tumour

To help the blood clot

To carry oxygen around the body

To produce antibodies against pathogens

To transport hormones to the organs