Proteins & Protein Synthesis

Question 1

Seven functions of proteins in cellular physiology

Answer 1

Transport proteins, channels, enzymes, signal proteins, hormone receptors, second messengers, structure proteins

Question 2

Central dogma

Answer 2

DNA > mRNA > Proteins

Question 3

Short chains of amino acid monomers linked by a peptide bond are:

Answer 3

peptides

Question 4

Five examples of peptides

Answer 4

Oxytocin, creatine, ADH, Bradykni, Angiotensin II

Question 5

Structure of amino acid

Answer 5

amino group, carboxyl group, side chain

Question 6

A long continuous, unbranched, peptide chain with 50 or fewer amino acids

Answer 6

Polypeptide

Question 7

What is gastrin?

Answer 7

stomach hormone

Question 8

CCK function

Answer 8

pancreas/liver secretions

Question 9

Where is glucagon secreted?

Answer 9

Secreted from alpha-cells of pancreas

Question 10

How many side chains can amino acids have?

Answer 10

20

Question 11

What are the 3 basic side chains?

Answer 11

Lysine, Arginine, Histidine

Question 12

These side chains accept protons.

Answer 12

Basic

Question 13

These side chains are positive at physiological pH

Answer 13

Basic

Question 14

What are the 9 non polar side chains?

Answer 14

Alanine, Valine, Glycine, Leucine, Isoleucine, Phenylalanine, Proline, Tryptophan, Methionine

Question 15

These side chains do not participate in hydrogen or ionic bonding.

Answer 15

Non polar

Question 16

Which type of amino acids experiences the hydrophobic effect where the side chains cluster together in the interior of the protein?

Answer 16

Non polar

Question 17

What are the 2 acidic side chains?

Answer 17

Aspartic acid and Glutamic acid (Aspartate and Glutamate)

Question 18

These side chains are proton donors.

Answer 18

Acidic