Acell is able to perform degradative and biosynthetic reactions in part due to proteins attached to the membrane of the cell

The given blank can be filled with the term enzymatic.

The enzymatic proteins are the proteins, which can enhance, activate or deactivate a particular reaction taking place in the cell. The enzymes come and bind to the membrane receptors found in the cell membrane. Binding of the enzymes send signals molecules for the activation of deactivation of the reactions.

your answer is going to be physical weathering

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!