BIO 168 exam 1 comprehensive
Questions and Answers with Verified
Solutions
Question 1:
Three of the four macromolecules are found embedded within or are on
the plasma membrane. Which macromolecule is not a major component
of the plasma membrane?
Answer:
nucleic acids
Question 2:
These molecules form the framework of the plasma membrane; they
associate to form two sheets.
Answer:
phospholipids
Question 3:
To which of the four macromolecules does this molecule belong?
Answer:
lipid
Question 4:
What term is used to communicate that the structure is two sheets?
Answer:
phospholipid bilayer
,Question 5:
What is the name of the portion of the molecule that forms the inner
structure of the plasma membrane?
Answer:
fatty acid tails
Question 6:
Is the portion of the molecule facing the interstitial fluid or the cytosol
polar or nonpolar?
Answer:
polar
Question 7:
This molecule is responsible for providing strength to the membrane and
stabilizing it against temperature changes
Answer:
cholesterol
Question 8:
is cholesterol a polar or nonpolar molecule?
Answer:
nonpolar
Question 9:
Would it be found among the heads of the phospholipid or the fatty acid
tails of the phospholipid?
Answer:
fatty acid tails
, Question 10:
What is the term used to refer to the coating of sugar that is important for
cell-to-cell recognition?
Answer:
glycocalyx
Question 11:
what 2 molecules make up glycocalyx
Answer:
glycoproteins glycolipids
Question 12:
What does the prefix "glyco-" refer to?
Answer:
sugar
Question 13:
which part of the molecule would be integral in the membrane?
Answer:
protein
Question 14:
What is the general term for proteins that are embedded within and
extend all the way across the plasma membrane?
Answer:
integral
Questions and Answers with Verified
Solutions
Question 1:
Three of the four macromolecules are found embedded within or are on
the plasma membrane. Which macromolecule is not a major component
of the plasma membrane?
Answer:
nucleic acids
Question 2:
These molecules form the framework of the plasma membrane; they
associate to form two sheets.
Answer:
phospholipids
Question 3:
To which of the four macromolecules does this molecule belong?
Answer:
lipid
Question 4:
What term is used to communicate that the structure is two sheets?
Answer:
phospholipid bilayer
,Question 5:
What is the name of the portion of the molecule that forms the inner
structure of the plasma membrane?
Answer:
fatty acid tails
Question 6:
Is the portion of the molecule facing the interstitial fluid or the cytosol
polar or nonpolar?
Answer:
polar
Question 7:
This molecule is responsible for providing strength to the membrane and
stabilizing it against temperature changes
Answer:
cholesterol
Question 8:
is cholesterol a polar or nonpolar molecule?
Answer:
nonpolar
Question 9:
Would it be found among the heads of the phospholipid or the fatty acid
tails of the phospholipid?
Answer:
fatty acid tails
, Question 10:
What is the term used to refer to the coating of sugar that is important for
cell-to-cell recognition?
Answer:
glycocalyx
Question 11:
what 2 molecules make up glycocalyx
Answer:
glycoproteins glycolipids
Question 12:
What does the prefix "glyco-" refer to?
Answer:
sugar
Question 13:
which part of the molecule would be integral in the membrane?
Answer:
protein
Question 14:
What is the general term for proteins that are embedded within and
extend all the way across the plasma membrane?
Answer:
integral
