Which of the following is NOT a role of plasma proteins? O To destroy infectious agents
O To help transport insoluble molecules
To make the blood thicker
To help maintain the osmotic balance and pH of the blood
All of the above are roles of plasma proteins.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

they dont have any evidence