This is a type of protein found in the cell membrane, which regulates the coming and going of substances into or out of the cell.

Carrier proteins are the proteins present in the cell membrane which regulates the coming and going of substances into or out of the cell.

These carrier proteins can transport the molecules with the concentration gradient in the case of facilitated diffusion or can transport the molecules against the concentration gradient by using energy in the form of ATP in case of active transport.

Large, polar and charged molecules like amino acids, nucleosides, and ions are transported through carrier proteins. Binding of molecules to these proteins induce the conformational change in the proteins which allow the protein to be open from the opposite side to transport the molecule across the membrane.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.