biology help, please???

Question

i have two questions....

(1) What makes one protein different from another protein in structure and shape?

(2)Are these molecules (above question) the result of anabolic or catabolic processes? Explain.

i have been on these two problems for TOO long.
please help me!

Answer 1

1) because every protein builds from different amino acids for ex:
H3NCCOOH(R) R is differnt in every L-a Amino acids such as
Ala H3NCCOOH(CH3), Val H3NCCOOH(CH(CH3)2) , Leu H3NCCOOH(CH2CH(CH3)2) .

as for the secound question I don't know the answer.

I hope it helped

Answer 2

A protein is a string of amino acids, such as:

Ans-Gly-Trp-Ser-Tyr-Ala...

or

Leu-Glu-Cys-Met-Ala-Val...

Each amino acid has it's own chemistry and fits into a group (polar, non-polar, acidic, etc) and the interaction of their individual chemistries is a major factor in how the chain will fold. Also, many proteins have some sort of marker on them that interact with another type of proteins known as chaperons which 'help' the protein fold in a specific way.

and proteins are the result of anabolic processes because anabolism is the process of building a larger molecule (proteins) out of smaller molecules or subunits (amino acids)

Catabolism is the breakdown of molecules... the breakdown of proteins with a peptidase would be catabolism

Answer 3

I like Ladybug's answer - in crude terms, you can think of the string of amino acids that make up a protein as odd- and differently- shaped beads that have connection points and attraction points coming out at certain angles, not all of which are the same (different amino acids have different chemical structures and electron charges). This leads the protein to coil up and fold in certain preferred orientations.