#Question id: 2074
#Biochemistry
In some cells, there are many ion electrochemical gradients across the plasma membrane even though there are usually only one or two proton pumps present in the membrane. The gradients of the other ions are most likely accounted for by:
#Question id: 2075
#Biochemistry
The force driving simple diffusion is:
#Question id: 2076
#Biochemistry
An organism with a cell wall would most likely be unable to take in materials through:
#Question id: 2077
#Biochemistry
In receptor-mediated endocytosis, receptor molecules initially project to the outside of the cell. Where do they end up after endocytosis?
#Question id: 2079
#Biochemistry
According to the fluid mosaic model of membrane structure, proteins of the membrane are mostly
#Question id: 2080
#Biochemistry
Which of the following factors would tend to increase membrane fluidity?