Chapter 1 Intro

Question 1

Three Domains

Answer 1

Bacteria, Eukarya, Archaea

Question 2

Three noncovalent interactions

Answer 2

electrostatic, h-bond, van der waals

Question 3

Each water molecule can form ? hydrogen bonds

Answer 3

4

Question 4

Hydrogen bonds are important for ?, but not important for stabilizing double helix

Answer 4

base pairing

Question 5

bases of DNA are relatively? (hydrophobic/hydrophilic)

Answer 5

hydrophobic

Question 6

? interactions drive DNA bases close together where they “stack”. Interactions between adjacent bases are ?

Answer 6

hydrophobic, van der waals

Question 7

second law of thermodynamics

Answer 7

total entropy always increases

Question 8

henderson-hasselbach

Answer 8

ph=pka+log[(A-)/(HA)]

Question 9

buffer consists of ? and ?

Answer 9

weak acid and conjugate base

Question 10

Protein monomer

Answer 10

amino acids

Question 11

Lipid monomer

Answer 11

fatty acids

Question 12

Carbohydrate monomer

Answer 12

monosaccharides

Question 13

nucleic acid monomer

Answer 13

nucleotides

Question 14

TATA box binding region is located in ? region of gene

Answer 14

promoter

Question 15

DNA is stabilized by negatively charged phosphates which are shielded by ? and ?

Answer 15

water and cations