BIOLOGY 230 EXAM 1CORRECT 100%
Which of these macromolecules is NOT commonly found in the plasma membrane?
- ANSWERnucleic acids
What kind of lipid molecule is represented in this figure? - ANSWERphospholipid
A protein that spans the phospholipid bilayer one or more times is - ANSWERa
transmembrane protein
What are hydrocarbons with double bonds - ANSWERunsaturated fatty acids
What is glucose? - ANSWERmonosaccharide
What lipid is amphipathic? - ANSWERphospholipids
A molecule with a lot of polar covalent bonds is likely to: - ANSWERbe highly soluble
in water
When a ligand binds to an allosteric enzyme's regulatory site, it changes the activity
of that enzyme by - ANSWERinducing a conformational change
How does phosphorylation of a protein affects its activity? - ANSWERcould increase
or decrease activity
A binding site on the surface of a protein interacts specifically with another protein
through - ANSWERmany weak non covalent interactions
If an enzyme in solution is saturated with substrate, the most effective way to obtain
a faster yield of products is to - ANSWERadd more of the enzyme
What structural feature makes the 20 common amino acids different from one
another? - ANSWERdifferent side chains (R groups) attached to an α carbon
Approximately 32 different monomeric carbohydrate subunits are found in various
natural polysaccharides. Proteins are composed of 20 different amino acids. DNA
and RNA are each synthesized from four nucleotides.Which class of biological
polymer has the greatest functional variety (diversity)? - ANSWERproteins
What is a alpha helix? - ANSWERsecondary organization of protein
What r-groups attached to? - ANSWERamino acids
Which of the following is not a method of controlling proteins within a cell? -
ANSWERglycosylation
Which of these macromolecules is NOT commonly found in the plasma membrane?
- ANSWERnucleic acids
What kind of lipid molecule is represented in this figure? - ANSWERphospholipid
A protein that spans the phospholipid bilayer one or more times is - ANSWERa
transmembrane protein
What are hydrocarbons with double bonds - ANSWERunsaturated fatty acids
What is glucose? - ANSWERmonosaccharide
What lipid is amphipathic? - ANSWERphospholipids
A molecule with a lot of polar covalent bonds is likely to: - ANSWERbe highly soluble
in water
When a ligand binds to an allosteric enzyme's regulatory site, it changes the activity
of that enzyme by - ANSWERinducing a conformational change
How does phosphorylation of a protein affects its activity? - ANSWERcould increase
or decrease activity
A binding site on the surface of a protein interacts specifically with another protein
through - ANSWERmany weak non covalent interactions
If an enzyme in solution is saturated with substrate, the most effective way to obtain
a faster yield of products is to - ANSWERadd more of the enzyme
What structural feature makes the 20 common amino acids different from one
another? - ANSWERdifferent side chains (R groups) attached to an α carbon
Approximately 32 different monomeric carbohydrate subunits are found in various
natural polysaccharides. Proteins are composed of 20 different amino acids. DNA
and RNA are each synthesized from four nucleotides.Which class of biological
polymer has the greatest functional variety (diversity)? - ANSWERproteins
What is a alpha helix? - ANSWERsecondary organization of protein
What r-groups attached to? - ANSWERamino acids
Which of the following is not a method of controlling proteins within a cell? -
ANSWERglycosylation
