Ch.2 MC Flash Cards

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Title: Ch.2 MC
Description: Ch.2 MC
Number of Cards: 23
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Author: Snowbunnygal11
Created: 2006-02-23
Tags: ch2 mc
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    • Question
    • Answer
    • Side 3
    • 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