How are phospholipids arranged in the cell membrane?
Phosopholipids have a hyrdophilic head which is orientated towards the cytoplasm or the interstice, and hydrophobic tales which are orientated towards the inside of the membrane, hydrophobic interactions hold the membrane together. A bilayer is formed.
HK
Related Biology A Level answers
All answers ▸Part of the retina of a young rat was removed and kept in the dark for two hours. This allowed the pigment in the rod cells to recover from bleaching caused by exposure to light. Suggest what happens in the rod cells during this two hours of darkness.
Describe the pathway of electrical activity in the heart during contraction.
What are three adaptations in a leaf for photosynthesis?
How do we know whether our results indicate whether or not there is a relationship between our variables?