Over a million students use our free study notes to help them with their homework
This occurs due to the phenomenon of osmosis. The basic principle of osmosis is that when two substances of different saline concentration are separated by a permeable divider (plant cell wall) the concen...
Blood from the veins is collected in the right and left atria of the heart. The atria can contract because of the impulses from the sinoatrial node (SA) (the heart’s natural pacemaker). When this happens,...
With these 5 and 6 mark questions, one of the main skills required is being able to describe the process in sufficient detail, without wasting time with unnecessary information. For example in this questi...
Animal CellsCell membrane - Made up of lipids and proteins and allows for passive diffusion into the cell. Cytoplasm - Contains cytosol & cell organelles. Nucleus - Controls the activities of t...
Osmoregulation is the homeostasis of water in the body. It is important that water volumes are kept relatively constant as this influences electrolyte concentrations and cell activity.Answered by Adam B. • Biology tutor2105 Views
←
288
289
290
291
292
→
Internet Safety
Payment Security
Cyber
Essentials
