Proteins

Question 1

What links two amino acids

Answer 1

Peptide bond

Question 2

Name the amino acids functional groups

Answer 2

alcohols, , carboxylic acids and Thiols

Question 3

Functions of the cytoskeleton

Answer 3

1. establishing cell shape,
2. providing mechanical strength,
3. locomotion,
4. chromosome separation in mitosis and meiosis
5. intracellular transport of organelles.

Question 4

What does amino acids consist of

Answer 4

A central carbon atom (a carbon)
An amino group
A carboxyl group
A hydrogen atom
A distinctive R group

Question 5

name this amino acid
H
I
H3N— C— COO-
I
H

Answer 5

Glycine

Question 6

CH3
I
H3N— C— COO-
I
H

Answer 6

Alanine

Question 7

What amino acid has a side chain bound to both the N atom and the a C atom.

Answer 7

Proline

Question 8

What molecule is lost when the peptide bond is formed

Answer 8

water

Question 9

How many residues do most natural polypeptide chains contain

Answer 9

50 and 1000

Question 10

Why is amino acid sequence important

Answer 10

Sequence determines 3-D structure of protein
Structure determines function