BIO 151 FINAL EXAM REVIEW QUESTIONS
WITH CORRECT ANSWERS 2025/2026
What type of bond links amino acids into a protein chain CORRECT ANSWER peptide bond
What are the three components of a nucleotide? CORRECT ANSWER Sugar, phosphate group,
nitrogenous base
What will determine whether a particular chain of amino acids is hydrophobic or hydrophilic?
CORRECT ANSWER The R-groups in that part of the peptide
If a hydrophilic signal like insulin is intended to pass its signal to the nucleus inside a cell it will
pass through the membrane to get to the DNA CORRECT ANSWER false
When a cell divides and the daughter cell changes (so for instance the inner cell mass divides
and some start to differentiate as part of the future reproductive system) the DNA gets changed
CORRECT ANSWER false
What does a kinase do? CORRECT ANSWER Adds a phosphate to another protein
In the absence of cyclin, CDK CORRECT ANSWER Does not bind target proteins or
phosphorylate anything
What happens to G1/S cyclin before S phase CORRECT ANSWER It's ubiquitinated
How might a ubiquitin inhibitor affect the cell cycle? CORRECT ANSWER Proteins
inappropriate for the given phase might continue to be phosphorylated
WITH CORRECT ANSWERS 2025/2026
What type of bond links amino acids into a protein chain CORRECT ANSWER peptide bond
What are the three components of a nucleotide? CORRECT ANSWER Sugar, phosphate group,
nitrogenous base
What will determine whether a particular chain of amino acids is hydrophobic or hydrophilic?
CORRECT ANSWER The R-groups in that part of the peptide
If a hydrophilic signal like insulin is intended to pass its signal to the nucleus inside a cell it will
pass through the membrane to get to the DNA CORRECT ANSWER false
When a cell divides and the daughter cell changes (so for instance the inner cell mass divides
and some start to differentiate as part of the future reproductive system) the DNA gets changed
CORRECT ANSWER false
What does a kinase do? CORRECT ANSWER Adds a phosphate to another protein
In the absence of cyclin, CDK CORRECT ANSWER Does not bind target proteins or
phosphorylate anything
What happens to G1/S cyclin before S phase CORRECT ANSWER It's ubiquitinated
How might a ubiquitin inhibitor affect the cell cycle? CORRECT ANSWER Proteins
inappropriate for the given phase might continue to be phosphorylated
