Download d) a and b

MACROMOLECULES
B
BIIO
OLL 1
10
01
1 ---- B
BLLO
OC
CK
K3
3,, 2
20
00
02
2 ---- Q
QU
UIIZ
Z3
3 ---- N
NA
AM
ME
E::
1. Proteins are composed of which of the following?
a) amino acids
b) peptides
c) nucleotides
d) nucleic acids
e) monosaccharides
f) glycerol and fatty acids
2. DNA is composed of which of the following?
a) amino acids
b) peptides
c) nucleotides
d) nucleic acids
e) monosaccharides
f) glycerol and fatty acids
3. Which of the following is not found in a DNA molecule?
a) adenine
b) thymine
c) uracil
d) phosphate
e) nucleotides
f) guanine
4. Which of the following is not found in a DNA molecule?
a) ribose
b) sugar
e) DNA does not contains any of these
c) cytosine
d) monosaccharides
5. Which of the following can be enzymes?
a) DNA
b) RNA
c) polysaccharides
d) lipids
e) monosaccharides
f) proteins
6. How many different types of amino acids are commonly found in proteins?
a) 1
b) 4
c) 16
d) 20
e) 64
7. Which of the following is not attached to the central carbon of an amino acid?
a) an R group
c) a hydrogen atom
b) an amine group
d) a carboxylic acid group
e) all of these are attached to the central carbon of an amino acid
8. Which of the following is found in membranes and also serves as an energy reserve source?
a) DNA
b) RNA
c) polysaccharides
d) lipids
e) amino acids
f) proteins
9. Monosaccharides are attached to form polysaccharides by ___________ reactions and
nucleotides are added together to form nucleic acids by ___________ reactions.
a) dehydration synthesis . . . hydrolysis
b) hydrolysis . . . dehydration synthesis
e) none of these
c) electron transfer . . . hydrolysis
d) hydrolysis . . . electron transfer
10. What level of organization is due to the interactions of R-groups (side chains) of amino acids?
a) primary
11.
b) secondary
c) tertiary
d) quaternary
e) cellular
A pentose is:
a) a monosaccharide containing 5 carbons
b) a oligosaccharide containing 5 monosaccharides
c) a polysaccharide containing 5 oligosaccharides
d) a polysaccharide containing 5 carbons
e) a lipid with hydrocarbons 5 carbons in length
12.
Which of the following is true concerning saturated fatty acids?
a) they are hydrophobic
b) they contain hydrogen and carbon
c) they lack double bonds
d) their carbons are saturated with hydrogens
e) all of these
13. While ______ serves as an energy reserve in plants, ______ serves as an energy source in
animals and ______ forms cell walls in plants.
a) glycogen . . . starch . . . cellulose
b) cellulose . . . starch . . . glycogen
c) starch . . . glycogen . . . cellulose
14.
a)
b)
c)
d)
e)
15.
Hydrolysis reaction ______________ macromolecules by ______________.
build . . . removing water molecules between its monomers
breakdown . . . removing water molecules between its monomers
build . . . adding water molecules between its monomers
breakdown . . . adding water molecules between its monomers
build and breakdown . . . adding water molecules between its monomers
Carbohydrates have what general molecular formula?
a) (CH2O)n
b) (C2HO)n
16.
e) (CnH2O)
f) (CnHO) 2
c) pentose
d) hexose
e) amino acid
f) heptose
c) pentose
d) hexose
e) amino acid
f) heptose
Ribose is a(n):
a) triose
b) tetrose
18.
c) (CH O 2)n
d) (CHnO) 2
Glycerol is a(n):
a) triose
b) tetrose
17.
d) cellulose . . . glycogen . . . starch
e) starch . . . cellulose . . . glycogen
Which of the following is not part of a nucleotide?
a) nucleic acid
b) phosphate
e) all of these are parts of a nucleotide
19.
a)
b)
c)
d)
e)
20.
a)
b)
c)
d)
e)
c) pentose
d) base
Phospholipids have ______ tails and a ______ head.
hydrophobic (water fearing) . . . hydrophilic (water loving)
hydrophilic . . . hydrophilic
amphipathic . . . hydrophobic
hydrophobic . . . hydrophobic
hydrophilic . . . amphipathic
Denaturation of proteins and DNA result in the breakage of what types of bonds?
hydrogen
ionic
covalent
a and b
all of these