Membrane proteins can have a variety of functions. what functions can these proteins have? check all that apply.

Answer;

-Channel, Recognition, reception, transport

Explanation;

Membrane proteins serve a number of functions:

• Channel proteins: allow dissolved molecules to diffuse through the membrane. Some of these proteins are structured in a way that allows only certain small molecules or ions through.

• Carrier proteins: These have binding sites that allows them to bind to certain substances and physically move the substance from one side of the membrane to the other.

• Receptor proteins: These proteins have active sites shaped to fit specific signal molecules, such as hormones. Once the protein is activated by the substance, it sets off a series of changes in the cell,such as increased metabolic rate or cell division.

• Recognition proteins: These proteins, called glycoproteins (glyco = sugar) have complex carbohydrates attached to them. These form the identification system that allows your body cells to recognize each other as self instead of foreign.

• Protein filaments: Long strands of protein on the inside surface of the membrane help support and strengthen the cell membrane, forming the cytoskeleton.

False. Bite marks persist for hours, not weeks.

Explanation:

In a dead body, the marks left by a bite do not persist for a long time. In general,

if the bite was produced when the victim was still alive, the marks are recognizable for a period of 4 to 36 hoursif the bite was done after the individual´s death, then these marks might persist for a period between 12 and 24 hours after the victim was bitten.

Also, it is important to consider that dehydration and putrefaction originate retraction of tissues and modify the original aspect of the bite.