Over a million students use our free study notes to help them with their homework
Myelination increases the speed of nervous impulse conduction. Allows saltatory conduction - the impulse can jump from node (of ranvier) to node, rather than travelling continuously which takes longer. Ex...
Cholesterol, like other lipids, is insoluble in water. Therefore, it is transported in the blood in lipoproteins. These are spheres of lipid and protein, and are made in the liver. There are two types of ...
Work chronologically, as you go through each step ask yourself, what, why , where , how questions?What is involved? - Pyruvic acid is converted to Acetly co-enzyme AWhy does it react?/ What conditions are...
Plant roots are underground and therefore not exposed to sunlight, sunlight is needed for photosynthesisPlant roots do not have chloroplasts/chlorophyll, chloroplasts are need for photosynthesis
Hydrogen ions are pumped out of companion cells using ATP.This creates a high concentration of hydrogen ions outside of the companion cell. H+ ions diffuse down their concentration gradient back into the ...
←
108
109
110
111
112
→
Internet Safety
Payment Security
Cyber
Essentials
