Ch.2 MC Flash Cards

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Title:	Ch.2 MC
Description:	Ch.2 MC
Number of Cards:	23
Save Count:	0
Author:	Snowbunnygal11
Created:	2006-02-23
Tags:	ch2 mc
Private	No

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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