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23 Cards in this Set

  • Front
  • Back
Which of the following biomolecules is NOT a polymer?

a. polysaccharide
b. phospholipid
c. protein
d. nucleic acid
B. phospholipid
A fatty acid that has two double bonds btwn carbon atoms is called

a. a saturated fatty acid
b. a desaturated acid
c. a monosaturated fatty acid
d. polysaturated fatty acid
e. an eicosanoid
d. polysaturated fatty acid
Which of the following is not a component of a phospholipid?
a. cholesterol
b. glycerol
c. phosphate
d. fatty acid
a. cholesterol
all of the above
Carbohydrates include: [Hint]
deoxyribose
starch
glycogen
all of the above
contain carbon

be synthesized by living organisms
By definition, biomolecules must: [Hint]
be inorganic
be synthesized by living organisms
contain carbon
contain nitrogen

***
lipophilic
Hydrophobic molecules are: [Hint]
soluble in water
lipophilic
amphipathic
polar
contain single bonds between carbon and hydrogen atoms

contain one or more double bonds between carbon and hydrogen atoms
Unsaturated fatty acids: [Hint]
contain one or more double bonds between carbon and hydrogen atoms
contain single bonds between carbon and hydrogen atoms
may form plaques in arteries, leading to strokes or heart attacks
all of the above

****
form bilayers in cell membranes

form micelles in aqueous solutions
Phospholipids: [Hint]
form micelles in aqueous solutions
form bilayers in cell membranes
contain a hydrophobic head and a hydrophilic tail
all of the above


***
the sequence of amino acids

peptide bonds
Primary protein structure is determined by: [Hint]
the sequence of amino acids
van der Waals forces
peptide bonds
interaction between separate polypeptide chains


***
phospholipids

glycoproteins

cholesterol
Which of the following may be found in cell membranes? [Hint]
nucleotides
glycoproteins
phospholipids
cholesterol

***
Transporters or carrier proteins

Ion channels
Which of the following are types of integral membrane proteins? [Hint]
Transporters or carrier proteins
Cytoskeletal proteins
Ion channels
All of the above

***
Nucleus

Golgi apparatus
Protein synthesis requires the participation of which of the following organelles? [Hint]
Nucleus
Lysosomes
Smooth endoplasmic reticulum
Golgi apparatus

***
mRNA

promoter sequences
The process of transcription involves: [Hint]
tRNA
mRNA
promoter sequences
leader sequences


***
sense strand

gene
A protein is coded in the DNA by a: [Hint]
sense strand
codon
gene
all of the above


***
polyribosomes

methionine
Molecules involved in translation include: [Hint]
methionine
polyribosomes
promoter sequences
leader sequences

***
all of the above
A mRNA molecule that is ready to move from the nucleus into the cytoplasm contains: [Hint]
an RNA cap
exons only
a poly A tail
all of the above
glycosylation

cleavage of the leader sequence
Post-translational processing of a protein can include: [Hint]
addition of a poly A tail
removal of introns
cleavage of the leader sequence
glycosylation

***
DNA polymerase
For replication to occur, which of the following molecules are required? [Hint]
Promoter sequence
RNA polymerase
AUG codon
DNA polymerase
interphase
Within the cell cycle, most cells spend the majority of their time in: [Hint]
anaphase
interphase
prophase
prometaphase
G0
Muscle cells, which do not undergo cell division, remain in which phase for their entire lives? [Hint]
S
G2
G0
G1
S
DNA replication occurs during which phase of the cell cycle? [Hint]
S
G2
prophase
G1
prophase
The chromosomes are first visible under the light microscope in: [Hint]
prophase
metaphase
the S phase
anaphase
metaphase
If, for some reason, the sister chromatids of each chromosome failed to separate, a cell would be halted in what part of the cell cycle? [Hint]
prophase
anaphase
telophase
metaphase