lesson 4 Flashcards
1
Q
major biological macromolecules
A
carbohydrates
proteins
nucleic acids
lipids
2
Q
function of carbohydrates
A
energy storage, structural support
3
Q
function of protiens
A
enzymes, structural support
4
Q
nucleic acids
A
storage and expression of genetic information
5
Q
lipids
A
energy storage, membrane structure, cell communication
6
Q
nucleic acids are assembled from nucleotides
A
nitrogenous base
phophate group
sugar:
OH in RNA
H in DNA
7
Q
nitrogenous bases may be purines or pyrimdines
A
purine: Adenine, Guanine
pyrimidines: cytosine, thymine, uracil
8
Q
nucleotides
A
covalently linked to form a nucleic acid
9
Q
structure of DNA
A
double helix
phosphodiester bonds
hydrogen bonds between nitrogenous bases
sugar-phosphate “backbone”
10
Q
DNA
A
double stranded
Thymine
2’-Deoxyribose
11
Q
RNA
A
single stranded
uracil
ribose
