Unit 3 Homework

Question 1

3D folding due to interactions of side groups

Answer 1

tertiary

Question 2

localized folding along backbone

Answer 2

secondary

Question 3

interaction of multiple polypeptide chains

Answer 3

quaternary

Question 4

sequence of amino acids

Answer 4

primary

Question 5

Which functional group adds acidic properties to the molecules it joins?

Answer 5

carboxyl

Question 6

Which nucleotide base is found in RNA but not in DNA?

Answer 6

uracil

Question 7

This polysaccharide forms the cell walls of fungi and the exoskeleton of insects.

Answer 7

chitin

Question 8

This polysaccharide is used as an energy-storage molecule in plants.

Answer 8

starch

Question 9

-OH

Answer 9

hydroxyl

Question 10

-NH2

Answer 10

amino

Question 11

-CH3

Answer 11

methyl

Question 12

-COOH

Answer 12

carboxyl

Question 13

What functional group do cells use to transfer energy from one molecule to another?

Answer 13

phosphate

Question 14

The bond that forms between the carboxyl carbon of one amino acid and the amino nitrogen of another amino acid is known as what type of bond?

Answer 14

peptide bond