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23 Cards in this Set
- Front
- Back
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Which of the following biomolecules is NOT a polymer?
a. polysaccharide b. phospholipid c. protein d. nucleic acid |
B. phospholipid
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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
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Which of the following is not a component of a phospholipid?
a. cholesterol b. glycerol c. phosphate d. fatty acid |
a. cholesterol
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all of the above
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Carbohydrates include: [Hint]
deoxyribose starch glycogen all of the above |
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contain carbon
be synthesized by living organisms |
By definition, biomolecules must: [Hint]
be inorganic be synthesized by living organisms contain carbon contain nitrogen *** |
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lipophilic
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Hydrophobic molecules are: [Hint]
soluble in water lipophilic amphipathic polar |
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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 **** |
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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 *** |
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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 *** |
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phospholipids
glycoproteins cholesterol |
Which of the following may be found in cell membranes? [Hint]
nucleotides glycoproteins phospholipids cholesterol *** |
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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 *** |
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Nucleus
Golgi apparatus |
Protein synthesis requires the participation of which of the following organelles? [Hint]
Nucleus Lysosomes Smooth endoplasmic reticulum Golgi apparatus *** |
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mRNA
promoter sequences |
The process of transcription involves: [Hint]
tRNA mRNA promoter sequences leader sequences *** |
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sense strand
gene |
A protein is coded in the DNA by a: [Hint]
sense strand codon gene all of the above *** |
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polyribosomes
methionine |
Molecules involved in translation include: [Hint]
methionine polyribosomes promoter sequences leader sequences *** |
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all of the above
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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 |
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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 *** |
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DNA polymerase
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For replication to occur, which of the following molecules are required? [Hint]
Promoter sequence RNA polymerase AUG codon DNA polymerase |
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interphase
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Within the cell cycle, most cells spend the majority of their time in: [Hint]
anaphase interphase prophase prometaphase |
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G0
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Muscle cells, which do not undergo cell division, remain in which phase for their entire lives? [Hint]
S G2 G0 G1 |
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S
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DNA replication occurs during which phase of the cell cycle? [Hint]
S G2 prophase G1 |
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prophase
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The chromosomes are first visible under the light microscope in: [Hint]
prophase metaphase the S phase anaphase |
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metaphase
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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 |
