BIOL 2070 FINAL EXAM QUESTIONS WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2024 – 2025 ALREADY GRADED A+
Mitogens are
a. extracellular signals that stimulate cell division
b. kinases that cause cells to grow in size
c. transcription factors import for cyclin production
d. produced by mitotic cells to keep nearby neighboring cells from dividing. -
ANSWERS-a
Which of the following statements is false?
a. a mutation is even a single cancer-critical gene is sufficient to convert a normal
cell into a cancer cell.
b. chemical carcinogens case cancer by changing the nucleotide sequence of DNA
c. viruses cause some cancers
d. tobacco use is responsible for more than 20% of all cancer deaths - ANSWERS-a
,S-Cdk is important for what stage of the cell cycle?
a. interphase
b. S phase
c. G1 phase
d. M phase
e. G2 phase - ANSWERS-b
Which of the following statements about cAMP is false?
a. is classified as a second messenger
b. is broken down by phosphodiesterase into AMP
c. binds to protein kinase A
d. s not involved in sugar metabolism
e. is synthesized from ATP - ANSWERS-d
What is a possible effect of a signaling molecule binding to a cell?
a. decreases movement
b. increased proliferation
c. decreases protein secretion
d. all of the choice are possible effects.
e. increases transcription - ANSWERS-
What is the correct sequence for the different phases of the cell cycle?
, a. G1, G2, S, M
b. S, G1, G2, M
c. G1, S, G2, M
d. S, G1, M, G2
e. G1, G2, M, S - ANSWERS-c
which of the following is not a form of chemical communication in cells?
a. contact dependent
b. neuronal
c. all the choices are forms of chemical communication in cells
d. paracrine
e. endocrine - ANSWERS-c
What is the function of a phosphatase?
a. it dephosphorylates proteins
b. it is a channel protein
c. it transfers amino acids to proteins
d. it is a catalyst
e. it binds cyclins. - ANSWERS-a
What is the primary function of mitogens?
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2024 – 2025 ALREADY GRADED A+
Mitogens are
a. extracellular signals that stimulate cell division
b. kinases that cause cells to grow in size
c. transcription factors import for cyclin production
d. produced by mitotic cells to keep nearby neighboring cells from dividing. -
ANSWERS-a
Which of the following statements is false?
a. a mutation is even a single cancer-critical gene is sufficient to convert a normal
cell into a cancer cell.
b. chemical carcinogens case cancer by changing the nucleotide sequence of DNA
c. viruses cause some cancers
d. tobacco use is responsible for more than 20% of all cancer deaths - ANSWERS-a
,S-Cdk is important for what stage of the cell cycle?
a. interphase
b. S phase
c. G1 phase
d. M phase
e. G2 phase - ANSWERS-b
Which of the following statements about cAMP is false?
a. is classified as a second messenger
b. is broken down by phosphodiesterase into AMP
c. binds to protein kinase A
d. s not involved in sugar metabolism
e. is synthesized from ATP - ANSWERS-d
What is a possible effect of a signaling molecule binding to a cell?
a. decreases movement
b. increased proliferation
c. decreases protein secretion
d. all of the choice are possible effects.
e. increases transcription - ANSWERS-
What is the correct sequence for the different phases of the cell cycle?
, a. G1, G2, S, M
b. S, G1, G2, M
c. G1, S, G2, M
d. S, G1, M, G2
e. G1, G2, M, S - ANSWERS-c
which of the following is not a form of chemical communication in cells?
a. contact dependent
b. neuronal
c. all the choices are forms of chemical communication in cells
d. paracrine
e. endocrine - ANSWERS-c
What is the function of a phosphatase?
a. it dephosphorylates proteins
b. it is a channel protein
c. it transfers amino acids to proteins
d. it is a catalyst
e. it binds cyclins. - ANSWERS-a
What is the primary function of mitogens?
