5.-Enzymes-in-Action-Peptides

Question 1

What is the structure of an amino acid?

Answer 1

The carbon atom of an amino acid is bonded to a hydrogen atom and three other groups.

Question 2

How are amino acids joined together?

Answer 2

Amino acids are joined by peptide bonds which form between the carboxyl group of one amino acid and the amino group of another, resulting in a condensation reaction.

Question 3

What are the four main types of amino acids based on their R groups?

Answer 3

The four main types are polar/hydrophilic, non-polar/hydrophobic, acidic/negatively charged R groups, and basic/positively charged R groups.

Question 4

What types of amino acids are found on the external surface of a soluble blood protein?

Answer 4

You would expect to find polar/hydrophilic amino acids on the external surface and non-polar/hydrophobic amino acids embedded within the internal part of the molecule.

Question 5

What are the three levels of protein structure?

Answer 5

Protein structure is described at three levels: primary, secondary, and tertiary.

Question 6

What do different amino acid R groups do in a protein?

Answer 6

Different R groups cause a polypeptide chain to fold into a particular shape and assign properties that enable the protein to carry out its function.

Question 7

What are the two main forms of protein shapes?

Answer 7

Protein shapes come in two main forms: fibrous and globular.

Question 8

What are the characteristics of fibrous proteins?

Answer 8

Fibrous proteins are insoluble in water and have strong, elongated structures.

Question 9

What are the characteristics of globular proteins?

Answer 9

Globular proteins are soluble in water and have more rounded structures.