BIO 256 LATEST 2026 TEST PAPER QUESTIONS AND
SOLUTIONS RATED A+
✔✔Which of the following hormones stimulates gluconeogenesis and reduces the
uptake of glucose by cells, thereby increasing plasma glucose concentration?
-Cortisol
-Thyroid hormones
-Acetylcholine
-Insulin - ✔✔Cortisol
✔✔Which of the following hormones is a part of the rapid response (rather than the
prolonged response) to stress?
-aldosterone
-ADH
-epinephrine
-cortisol - ✔✔epinephrine
✔✔In response to stress, which of the following changes would happen? -
✔✔decreased insulin secretion
✔✔Which of the following are symptom(s) of pheochromocytoma? - ✔✔heat
palpitations
✔✔Choose which condition has all of the following symptoms: hypertension,
hyperglycemia, and a "moon face." - ✔✔Cushing's disease
✔✔What hormone also aids the stress response by promoting water retention and
acting as a vasoconstrictor? - ✔✔ADH (vasopressin)
✔✔How does someone with low glucocorticoid levels respond to stress? - ✔✔Someone
with low glucocorticoid levels does not tolerate stress as well as someone with normal
levels.
✔✔Which of the following occurs to promote sexual differentiation during embryonic
development? - ✔✔A signal from the Y chromosome instructs the gonads to develop
into testes.
✔✔What is the role of estrogen in the embryonic development of female genitalia? -
✔✔Estrogen does not play a role in the embryonic development of female genitalia.
✔✔At what point does an embryo become a fetus? - ✔✔at approx. 10 weeks when it
has recognizable human form
, ✔✔What is a gamete? - ✔✔A gamete is a haploid containing half of the individual's
genetic information.
✔✔Which of the following would be female?
-XX
-XY
-XXY
-YY - ✔✔XX
✔✔_____________ is a hormone secreted by the anterior pituitary that directly
stimulates the secretion of androgens by male Leydig cells. - ✔✔Luteinizing Hormone
(LH)
✔✔Which of the following general characteristics about the female reproductive system
is INCORRECT?
-Cyclic changes in activity
-Limited gamete production
-Largely governed by gonadotropins and androgens
-restricted periods of fertility - ✔✔Largely governed by gonadotropins and androgens
✔✔If you wanted to predict a woman's fertility, which hormone would you monitor? -
✔✔luteinizing hormone
✔✔Identify the phases of the uterine cycle. - ✔✔secretory
proliferative
menstrual
✔✔Identify the hormones produced by the anterior pituitary during the uterine cycle. -
✔✔FSH
LH
✔✔Ovulation is stimulated by a surge in which hormone? - ✔✔LH
✔✔High levels of __________, secreted by the corpus luteum, inhibits LH surges. -
✔✔progesterone
✔✔Which hormone promotes oogenesis and development of the follicle? - ✔✔FSH
✔✔How is polyspermy prevented during fertilization? - ✔✔The fusion of the sperm with
the oocyte releases an enzyme that inactivates sperm binding protein.
✔✔Where does the progesterone that helps maintain the pregnancy come from? - ✔✔It
is produced by the placenta.
SOLUTIONS RATED A+
✔✔Which of the following hormones stimulates gluconeogenesis and reduces the
uptake of glucose by cells, thereby increasing plasma glucose concentration?
-Cortisol
-Thyroid hormones
-Acetylcholine
-Insulin - ✔✔Cortisol
✔✔Which of the following hormones is a part of the rapid response (rather than the
prolonged response) to stress?
-aldosterone
-ADH
-epinephrine
-cortisol - ✔✔epinephrine
✔✔In response to stress, which of the following changes would happen? -
✔✔decreased insulin secretion
✔✔Which of the following are symptom(s) of pheochromocytoma? - ✔✔heat
palpitations
✔✔Choose which condition has all of the following symptoms: hypertension,
hyperglycemia, and a "moon face." - ✔✔Cushing's disease
✔✔What hormone also aids the stress response by promoting water retention and
acting as a vasoconstrictor? - ✔✔ADH (vasopressin)
✔✔How does someone with low glucocorticoid levels respond to stress? - ✔✔Someone
with low glucocorticoid levels does not tolerate stress as well as someone with normal
levels.
✔✔Which of the following occurs to promote sexual differentiation during embryonic
development? - ✔✔A signal from the Y chromosome instructs the gonads to develop
into testes.
✔✔What is the role of estrogen in the embryonic development of female genitalia? -
✔✔Estrogen does not play a role in the embryonic development of female genitalia.
✔✔At what point does an embryo become a fetus? - ✔✔at approx. 10 weeks when it
has recognizable human form
, ✔✔What is a gamete? - ✔✔A gamete is a haploid containing half of the individual's
genetic information.
✔✔Which of the following would be female?
-XX
-XY
-XXY
-YY - ✔✔XX
✔✔_____________ is a hormone secreted by the anterior pituitary that directly
stimulates the secretion of androgens by male Leydig cells. - ✔✔Luteinizing Hormone
(LH)
✔✔Which of the following general characteristics about the female reproductive system
is INCORRECT?
-Cyclic changes in activity
-Limited gamete production
-Largely governed by gonadotropins and androgens
-restricted periods of fertility - ✔✔Largely governed by gonadotropins and androgens
✔✔If you wanted to predict a woman's fertility, which hormone would you monitor? -
✔✔luteinizing hormone
✔✔Identify the phases of the uterine cycle. - ✔✔secretory
proliferative
menstrual
✔✔Identify the hormones produced by the anterior pituitary during the uterine cycle. -
✔✔FSH
LH
✔✔Ovulation is stimulated by a surge in which hormone? - ✔✔LH
✔✔High levels of __________, secreted by the corpus luteum, inhibits LH surges. -
✔✔progesterone
✔✔Which hormone promotes oogenesis and development of the follicle? - ✔✔FSH
✔✔How is polyspermy prevented during fertilization? - ✔✔The fusion of the sperm with
the oocyte releases an enzyme that inactivates sperm binding protein.
✔✔Where does the progesterone that helps maintain the pregnancy come from? - ✔✔It
is produced by the placenta.
