Proteins

Question 1

What are proteins?

Answer 1

end product of the decoding process that starts with DNA
“workhorses” of the cell, compose structural and motor elements in cell, serve as catalysts

Question 2

What are proteins made of?

Answer 2

amino acids as building block

Question 3

What do the amino acids consist of?

Answer 3

central carbon atom linked to
*amino groóup
*carboxyl group
*hydrogen atom
+side chain

Question 4

How are multible amino acids linked together within a protein?

Answer 4

peptide bonds

Question 5

How are peptide bonds formed?

Answer 5

biochemical reaction that extracts water molecule as it joins the amino group of one amino acid to the carboxyl group of the neighboring amino acid

Question 6

What is the primary structure?

Answer 6

The linear sequence of amino acids within a protein
linear
composed of peptide bonds between amino acids
formed during translation

Question 7

Describe secondary structure!

Answer 7

folding of the peptide chain into
alpha / beta sheet
hydrogen bonds
forms collagen, elastin, actin, myosin, and keratin like fibers

Question 8

Describe tertiary structure of a protein!

Answer 8

3-D structure of protein
globular
disulfate bridges, hydrogen bonds, salt bridges
includes enzymes, hormones, globulin,albumin and hemoglobin

Question 9

What is quaternary structure of protein?

Answer 9

multible polypeptide chains