2006-10-12 17:44:28 · 5 answers · asked by Cool2Fool 1 in Education & Reference ➔ Homework Help
1) needed for growth repair(forms part of cell membrane) 2)needed to make many substances such as enzymes,hormones etc. 3) used as an energy supply when all carbohydrates and fat has run out.
2006-10-12 17:51:40 · answer #1 · answered by Tony B 2 · 0⤊ 0⤋
Like other biological macromolecules such as polysaccharides, lipids, and nucleic acids, proteins are essential parts of all living organisms and participate in every process within cells. Many proteins are enzymes that catalyze biochemical reactions, and are vital to metabolism. Other proteins have structural or mechanical functions, such as the proteins in the cytoskeleton, which forms a system of scaffolding that maintains cell shape. Proteins are also important in cell signaling, immune responses, cell adhesion, and the cell cycle. Protein is also a necessary component in our diet, since animals cannot synthesise all the amino acids and must obtain essential amino acids from food
2016-05-21 22:06:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Proteens yearn for:
Basketball Contracts
Football Contracts
Presidents who won't involve us in foreign wars,
or raise our taxes.
2006-10-12 17:49:10 · answer #3 · answered by zahbudar 6 · 0⤊ 0⤋
i agree with mel
2006-10-12 17:46:21 · answer #4 · answered by Anonymous · 0⤊ 1⤋
do your own damn homework.
2006-10-12 17:45:23 · answer #5 · answered by Mel 3 · 1⤊ 1⤋