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Best way to explain would be to draw a cell with both a big and a large SA:Vol ratio. Visually get to see the effect, to understand why the rate of osmosis changes.

note: SA = surface area and Vol ...

• chloroplasts

• cell wall

• vacuole

best way to show/teach student this would be to draw a plant cell and ask them to label/name structures in t...

•Apoplastic- in cell wall and water moves by cohesion.

•Symplastic- in cytoplasm and water moves by osmosis.

Calcium ions, which diffuse in from the sarcoplasmic reticulum, cause tropomyosin to shift which reveals the myosin binding site located on the actin filament allowing the myosin head to bind. A molecule ...

The kidneys can be split into 5 main sections. Firstly we have the glomerulus. Blood enters the kidneys via the afferent arteriole and then travels to the glomerulus which is just a cluster of capillaries...