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BIO 1104 Exam 4 Complete Questions And Answers 2024 Solutions
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BIO 1104 Exam 4 Complete Questions And Answers 2024 Solutions
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BIO 1104 Exam 4 Complete Questions And Answers2024 Solutions
What hormone is synthesized from cholesterol? ANS Estrogen
Which of the following is the definition of a cell receptor? ANS A specialized protein located either on the
surface of or inside of the receiving cell that binds to a specific messenger molecule
Assume that your biology professor invited you to work in his laboratory over the summer. One of your first
projects was to determine the reason for specificity of the hormone oxytocin in the rabbit. Your professor told you
that he had learned that oxytocin causes contraction of uterine muscle but not other muscles in the rabbit and
asked you to suggest a reason for this. What would you suggest? ANS would suggest that uterine muscle
contains receptors for oxytocin whereas other muscle does not.
Events of high blood glucose level ANS 1. pancreas releases insulin
2. Body cells take up more glucose
3. Liver takes up glucose and stores it as glycogen
4. Blood glucose decreases to normal
Events of low blood glucose level ANS 1. Pancreas release glucagon
2. Liver breaks down glycogen and releases glucose to the blood
3. Blood glucose increases to normal
Which of these glands secretes releasing and inhibiting hormones? ANS Hypothalamus
Which of these hormones are responsible for the "fight or flight" response to danger? ANS Epinephrine and
norepinephrine secreted by the adrenal medulla
What are the main male hormone? ANS Androgens such as testosterone
What hormone promotes water retention by the kidneys? ANS Antidiuretic promotes water conservation, while
diuretic promotes water loss . Secreted by the anterior pituitary (tropic hormone)
, What is thymosin? ANS Plays a role in the maturation of T cells
Which hormone opposes the action of parathyroid hormone? ANS Calcitonin lowers blood calcium levels
Which hormone increases blood calcium levels? ANS Parathyroid hormone
Which hormone stimulates milk production? ANS Prolactin
Which hormone stimulates hormone production by the ovaries and testes? ANS Luteinizing hormone,
stimulates hormone production by both the ovaries and testes
You have learned that the pancreas is responsible for producing insulin or glucagon. What is another function of
the pancreas? ANS to produce bicarbonate and several enzymes that are released into the small intestine,
promoting the digestion of food
A fertilized egg usually implants itself and develops in the _____. ANS Uterus
A rapid increase in the _____ level stimulates ovulation. ANS Luteinizing hormone, A surge in LH levels is
responsible for triggering ovulation.
After ovulation, high levels of _____ inhibit _____ secretion. ANS estrogen and progesterone, the corpus
luteum maintains the endometrium and inhibits FSH and LH secretion.
Developing ovarian follicles primarily secrete _____ ANS Estrogen
If there is fertilization, secretion of _____ by the early embryo maintains the corpus luteum. ANS human
chorionic gonadotropin
if there is no fertilization, degeneration of the corpus luteum results in a drop in _____, which results in the
sloughing off of the uterus's endometrium. ANS Estrogen and Progesterone, they are responsible for
maintaining the endometrium in the event that the egg has been fertilized.
Ovulation usually occurs on or about day _____ of a 28-day ovarian cycle. ANS 14
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