Bio Ch 3

Question 1

Tiny molecule with a central carbon and amino/carboxyl groups that make up proteins are

Answer 1

Amino acids

Question 2

Amino acids are made up of these four parts.

Answer 2

Hydrogen atoms, amino group (Nh 2)carboxyl group, and R group

Question 3

What r groups are hydrophilic? Hydrophobic?

Answer 3

Polar + electrically charged r groups are hydrophilic, non-polar groups are hydrophobic

Question 4

What does a negative charged r-group mean? Positive?

Answer 4

Negative charged r-groups are acidic, positive charges are basic

Question 5

What does it mean when a r-group has no charge?

Answer 5

If containing an oxygen atom, it is polar covalent. If no oxygen, the group is nonpolar

Question 6

Peptide bonds

Answer 6

Result in a condensation reaction between two amino acids.

Question 7

Difference between oligopeptide and polypeptide

Answer 7

Oligopeptide’S are polymers with < 50 amino acids• polypeptides,are >50 amino acids,

Question 8

Draw out primary, secondary, tertiary, and quaternary structures

Answer 8

✓

Question 9

What are prions

Answer 9

Protiens that form an infectious abnormal shape

Question 10

Catalysis

Answer 10

The speeding up of a chemical reaction presumed by enzymes

Question 11

What are the functions of proteins (6)

Answer 11

Catalysis,movement, structures signaling transport defense

Question 12

Subunits of macromolecules

Answer 12

Monomers

Question 13

Electrically charged side chains are

Answer 13

Hydrophilic acidic or basic

Question 14

Polar side chains are

Answer 14

hydrophilic ‘ no charge+ oxygen

Question 15

Non polar side chains are

Answer 15

Hydrophobic no charge and no oxygen

Question 16

Difference between,condensation and hydrolysis reactions

Answer 16

Condensation: monomer in, water out
hydrolysis. Monomer out water in