Bio 212 Exam 4 Test Questions and Review
Questions and Answers|Latest Update
How is a stem cell in an adult organism different from most of the other cells in the adult? See
Section 21.1 (Page 420) .
A. Only stem cells can divide in adult organisms.
B. Stem cells contain all of the DNA present in the embryonic cells.
C. cell that remains a stem cell and one that can differentiate into a particular, specialized type of
cell.
D. Stem cells are differentiated, but other adult cells are not. C. Stem cells can divide to
form one daughter cell that remains a stem cell and one that can differentiate into a particular,
specialized type of cell.
What embryo-produced hormone maintains progesterone and estrogen secretion by the corpus
luteum through the first trimester of pregnancy?
A. gonadotropin-releasing hormone (GnRH)
B. follicle-stimulating hormone (FSH)
C. human chorionic gonadotropin (hCG)
, Bio 212 Exam 4 Test Questions and Review
Questions and Answers|Latest Update
D. progesterone
E. luteinizing hormone (LH) C. human chorionic gonadotropin (hCG)
Why is breathing more difficult at high altitudes, such as at the top of Mount Everest? See
Section 42.2 (Page 876) .
A. The lower atmospheric pressure reduces the ability of the body to pump air into the body.
B. At high altitudes, the air only contains nitrogen, so breathing is more difficult.
C. The lower partial pressure of oxygen in the atmosphere reduces the rate of diffusion of oxygen
into your body.
D. Carbon dioxide will not diffuse out of your body at high altitude. C. The lower partial
pressure of oxygen in the atmosphere reduces the rate of diffusion of oxygen into your body.
What might be a consequence of global warming for fishes living in a pond? See Section 42.2
(Page 876) .
A. With increasing temperature, lower oxygen content of the pond water will lead to an increase
in metabolic rate and oxygen consumption in fishes.
, Bio 212 Exam 4 Test Questions and Review
Questions and Answers|Latest Update
B. As the planet warms, the increase in oxygen will lead to increased number of fishes.
C. As the planets warms, aquatic habitats such as a pond will contain less dissolved oxygen,
reducing the ability of fishes to acquire oxygen for their respiratory needs.
D. Nothing will happen, as temperature and oxygen content are not related. C. As the
planets warms, aquatic habitats such as a pond will contain less dissolved oxygen, reducing the
ability of fishes to acquire oxygen for their respiratory needs.
Which feature is common to gills, lungs, and tracheae? See Section 42.3 (Page 878) .
A. Dead space
B. Countercurrent exchange mechanism
C. Large surface area
D. Delivering oxygen directly to cells without a circulatory system C. Large surface area
A mutation causes follicles to overproduce estradiol at the beginning of their maturation. What
effect would this have on ovulation during the ovarian cycle?
A. Ovulation would occur earlier in the cycle
Questions and Answers|Latest Update
How is a stem cell in an adult organism different from most of the other cells in the adult? See
Section 21.1 (Page 420) .
A. Only stem cells can divide in adult organisms.
B. Stem cells contain all of the DNA present in the embryonic cells.
C. cell that remains a stem cell and one that can differentiate into a particular, specialized type of
cell.
D. Stem cells are differentiated, but other adult cells are not. C. Stem cells can divide to
form one daughter cell that remains a stem cell and one that can differentiate into a particular,
specialized type of cell.
What embryo-produced hormone maintains progesterone and estrogen secretion by the corpus
luteum through the first trimester of pregnancy?
A. gonadotropin-releasing hormone (GnRH)
B. follicle-stimulating hormone (FSH)
C. human chorionic gonadotropin (hCG)
, Bio 212 Exam 4 Test Questions and Review
Questions and Answers|Latest Update
D. progesterone
E. luteinizing hormone (LH) C. human chorionic gonadotropin (hCG)
Why is breathing more difficult at high altitudes, such as at the top of Mount Everest? See
Section 42.2 (Page 876) .
A. The lower atmospheric pressure reduces the ability of the body to pump air into the body.
B. At high altitudes, the air only contains nitrogen, so breathing is more difficult.
C. The lower partial pressure of oxygen in the atmosphere reduces the rate of diffusion of oxygen
into your body.
D. Carbon dioxide will not diffuse out of your body at high altitude. C. The lower partial
pressure of oxygen in the atmosphere reduces the rate of diffusion of oxygen into your body.
What might be a consequence of global warming for fishes living in a pond? See Section 42.2
(Page 876) .
A. With increasing temperature, lower oxygen content of the pond water will lead to an increase
in metabolic rate and oxygen consumption in fishes.
, Bio 212 Exam 4 Test Questions and Review
Questions and Answers|Latest Update
B. As the planet warms, the increase in oxygen will lead to increased number of fishes.
C. As the planets warms, aquatic habitats such as a pond will contain less dissolved oxygen,
reducing the ability of fishes to acquire oxygen for their respiratory needs.
D. Nothing will happen, as temperature and oxygen content are not related. C. As the
planets warms, aquatic habitats such as a pond will contain less dissolved oxygen, reducing the
ability of fishes to acquire oxygen for their respiratory needs.
Which feature is common to gills, lungs, and tracheae? See Section 42.3 (Page 878) .
A. Dead space
B. Countercurrent exchange mechanism
C. Large surface area
D. Delivering oxygen directly to cells without a circulatory system C. Large surface area
A mutation causes follicles to overproduce estradiol at the beginning of their maturation. What
effect would this have on ovulation during the ovarian cycle?
A. Ovulation would occur earlier in the cycle
