science year 9

Eukaryotic cells

They have genetic material stored in the nucleus (has a nucleus)

Prokaryotic cells

No nucleus

Give 2 Examples of eukaryotic cells

Animal cell / plant cell

Give an example of a prokaryotic cell

Bacteria cell

Diffusion

The net movement of partials moving from an area of high concentration to an area of low concentration

What factors effect the rate of diffusion

Difference in concentration, temperature, surface area of membrane

Osmosis

The diffusion of water through a partially permeable membrane

Active transport

The movement of particles againts a concentration gradient. From an area of low concentration to an area of high concentration (uses energy)

Specialised cell

Cells in multicellular organisms with a specific structure or function adapted to perform a particular task

Name the four main chambers of the heart

Right arteries, right ventricle, left atrium, left ventricles

4 main tubes (or veins idk what to call them) attached to the heart

Venna cava, pulmonary artery, aorta, pulmonary vein

What side of the heart is bigger and why

Left, because it needs more muscle to pump the blood around the whole body compared to the left pumping un oxygenated blood to the lungs