Peptides

Question 1

Produced through an amide formation between two amino acids

Answer 1

Peptides

Question 2

Number of peptide bonds are always ___ less than amino acids

Answer 2

One

Question 3

What peptide bond contains 2 amino acids

Answer 3

Dipeptide

Question 3

What peptide bond contains 3-10 amino acids

Answer 3

Oligopeptides

Question 4

What peptide bond contains 11-100 amino acids

Answer 4

Polypeptides

Question 5

This structure is determined by AA sequence

Answer 5

Primary Structure

Question 6

This structure is stabilized by hydrogen bonds

Answer 6

Secondary structure

Question 6

What are the 2 types of secondary structures?

Answer 6

Alpha helix and beta pleated

Question 7

What is the most common secondary structure?

Answer 7

Alpha helix

Question 8

How many AA per turn does the Alpha helix structure contain

Answer 8

Approx. 3.6 AA per turn

Question 8

What type of structure is keratin made out of

Answer 8

Alpha helix secondary structure

Question 9

Percentage of alpha helix in hemoglobin

Answer 9

80% alpha helix

Question 10

What is the pattern of Beta sheets?

Answer 10

Zigzags or Pleated Pattern

Question 11

Classification of beta sheets

Answer 11

Parallel or Antiparallel

Question 12

TRUE OR FALSE:
Beta sheets can be found in antibodies.

Answer 12

TRUE

Question 13

TRUE OR FALSE:
Tertiary structure does not need amino acid sequence.

Answer 13

FAlSE

Question 14

Assists in protein folding but not determinants of the final structure, they are not necessary but they help in protein folding.

Answer 14

Molecular chaperones

Question 15

Composed of 2 or more polypeptide chains forming one macromolecule

Answer 15

Quarternary structure

Question 16

Give an example of a protein that does not have a corresponding quarternary structure

Answer 16

Oxytocin

Question 16

TRUE OR FALSE:
Not all proteins have a corresponding quarternary strucutre.

Answer 16

TRUE

Question 17

Give an example of protein that does have a corresponding quarternary structure

Answer 17

Hemoglobin

Question 18

Are made up of singe units of sugars called Monosaccharides

Answer 18

Monomer

Question 19

Are made up of singe units of sugars called Disaccharides

Answer 19

Dimer

Question 20

Makes reactions faster, an example of this type of protein are the Molecular chaperones.

Answer 20

Catalytic proteins

Question 21

Defends organisms against external agents of disease

Answer 21

Immune functions

Question 21

Contain multiple units of monomers and dimers and are called polysaccharides

Answer 21

Polymers

Question 22

Acts as doors to the cell, helping certain molecules pass back and forth across the plasma membrane

Answer 22

Transport proteins

Question 23

Give instruction to other parts of the body, most of these are hormones.

Answer 23

Messenger proteins

Question 24

Nutrient storage

Answer 24

Myoglobin and Hemoglobin

Question 24

Structural movement

Answer 24

Actin and Myosin

Question 25

Influence DNA to RNA transcription

Answer 25

Regulatory proteins

Question 26

Caused by point mutation missense in both gene coding for the H chain, changes from GLU to call at POS6 Homozygous recessive disorder

Answer 26

Sickle cell disease.