CELL BIOLOGY 112 FINAL EXAM PCC
2025/2026 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|BRAND NEW VERSION
!!|GUARANTEED PASS
Photoreceptors include
rods
If taken within 72 hours of unprotected intercourse, the "morning after" pill should
delay or prevent ovulation
If the fluid in the stomach has a highly acidic pH of 1 to 3, how does this fluid become slightly
basic almost immediately after it leaves the stomach?
The acids in this fluid are neutralized by the sodium bicarbonate secreted from the pancreas.
Minerals required for bone formation include
calcium and phosphorus.
Mature sperm are only stored in the epididymis. True or False?
False
All of the following are functions of the lymphatic system EXCEPT:
transporting oxygen to the lungs.
Smell and taste are detected by
chemoreceptors
The central nervous system interprets signal frequency as
1|Page
,stimulus intensity.
In the "typical" menstrual cycle, day 13 or 14 is when
ovulation occurs.
Myelin speeds the conduction of impulses along a nerve by
allowing the action potential to "jump" over sections of the axon.
Complex motor patterns and the coordination of movements are processed in which part of the
brain?
Cerebellum
Pain receptors
respond to potassium ions released by damaged cells.
In humans, fertilization occurs in the
uterine tube.
If a broken nose pushed a bone fragment against the olfactory (smell) nerve, triggering an
action potential, the person would
register the sensation as a smell.
A neurotransmitter associated with emotion and reward is dopamine. True or False?
True
A biological molecule that responds to a stimulus is a
receptor
Memory, sensory processing, motor responses, creativity, and higher intellectual functions are
carried out by the
cerebrum
Mitotic cell divisions of the zygote are collectively called cleavage. True or False?
True
A human embryologist examines a 3-week-old embryo and notices that it has not developed a
notochord. If the embryo survives, it will lack
a brain and a spinal cord
2|Page
,Babies who are nursed rather than fed formula
gain antibodies from the mother.
The autonomic nervous system controls
contractions of involuntary muscles
Puberty is triggered when brain maturation causes the hypothalamus to secrete
gonadotropin-releasing hormone (GnRH).
In the male, the primary target of FSH is
Sertoli cells.
Cellular differentiation depends on which genes are turned on or expressed in the cell. True or
False?
True
The epididymis connects the
testis and the vas deferens.
Human fingertips have the same number of touch receptors per square inch as the skin of the
back. True or False?
False
Hair cells in the human ear are located on the
basilar membrane.
FSH stimulates interstitial cells in the testes to produce testosterone. True or False?
False
Amphibians, reptiles, and mammals pass through embryonic stages in which they have tails and
webbed fingers and toes. True or False?
True
A good meal and a pleasant evening relaxing in front of the fire trigger the parasympathetic
nervous system. True or False?
True
At what stage does a human embryo implant in the uterus?
3|Page
, Blastocyst
During an erection, blood pressure in the penis is decreased. True or False?
False
Prolonged exposure to very loud noises is most likely to damage
Hair cells
A primary spermatocyte divides to produce two haploid secondary spermatocytes. True or
False?
True
In a person who is nearsighted, the
incoming light is focused in front of the retina.
Cells differentiate during development because
in each cell some genes are expressed and others are suppressed.
Emotions and the responses to emotions are controlled by the limbic system. True or False?
True
Oogenesis begins
during embryonic development.
The autonomic nervous system consists of two parts: the sympathetic and parasympathetic
divisions. The sympathetic division is responsible for which type of response?
Involuntary responses to extreme danger or stress
Suppose a pregnant woman took a drug that causes incomplete brain formation during fetal
development. When must the woman have taken the drug for this effect to occur?
In the first 2 months of development
Sexually transmitted diseases caused by viruses include herpes, AIDS, and
human papillomavirus (HPV).
The corpus callosum links the
right and left cerebral hemispheres.
4|Page
2025/2026 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|BRAND NEW VERSION
!!|GUARANTEED PASS
Photoreceptors include
rods
If taken within 72 hours of unprotected intercourse, the "morning after" pill should
delay or prevent ovulation
If the fluid in the stomach has a highly acidic pH of 1 to 3, how does this fluid become slightly
basic almost immediately after it leaves the stomach?
The acids in this fluid are neutralized by the sodium bicarbonate secreted from the pancreas.
Minerals required for bone formation include
calcium and phosphorus.
Mature sperm are only stored in the epididymis. True or False?
False
All of the following are functions of the lymphatic system EXCEPT:
transporting oxygen to the lungs.
Smell and taste are detected by
chemoreceptors
The central nervous system interprets signal frequency as
1|Page
,stimulus intensity.
In the "typical" menstrual cycle, day 13 or 14 is when
ovulation occurs.
Myelin speeds the conduction of impulses along a nerve by
allowing the action potential to "jump" over sections of the axon.
Complex motor patterns and the coordination of movements are processed in which part of the
brain?
Cerebellum
Pain receptors
respond to potassium ions released by damaged cells.
In humans, fertilization occurs in the
uterine tube.
If a broken nose pushed a bone fragment against the olfactory (smell) nerve, triggering an
action potential, the person would
register the sensation as a smell.
A neurotransmitter associated with emotion and reward is dopamine. True or False?
True
A biological molecule that responds to a stimulus is a
receptor
Memory, sensory processing, motor responses, creativity, and higher intellectual functions are
carried out by the
cerebrum
Mitotic cell divisions of the zygote are collectively called cleavage. True or False?
True
A human embryologist examines a 3-week-old embryo and notices that it has not developed a
notochord. If the embryo survives, it will lack
a brain and a spinal cord
2|Page
,Babies who are nursed rather than fed formula
gain antibodies from the mother.
The autonomic nervous system controls
contractions of involuntary muscles
Puberty is triggered when brain maturation causes the hypothalamus to secrete
gonadotropin-releasing hormone (GnRH).
In the male, the primary target of FSH is
Sertoli cells.
Cellular differentiation depends on which genes are turned on or expressed in the cell. True or
False?
True
The epididymis connects the
testis and the vas deferens.
Human fingertips have the same number of touch receptors per square inch as the skin of the
back. True or False?
False
Hair cells in the human ear are located on the
basilar membrane.
FSH stimulates interstitial cells in the testes to produce testosterone. True or False?
False
Amphibians, reptiles, and mammals pass through embryonic stages in which they have tails and
webbed fingers and toes. True or False?
True
A good meal and a pleasant evening relaxing in front of the fire trigger the parasympathetic
nervous system. True or False?
True
At what stage does a human embryo implant in the uterus?
3|Page
, Blastocyst
During an erection, blood pressure in the penis is decreased. True or False?
False
Prolonged exposure to very loud noises is most likely to damage
Hair cells
A primary spermatocyte divides to produce two haploid secondary spermatocytes. True or
False?
True
In a person who is nearsighted, the
incoming light is focused in front of the retina.
Cells differentiate during development because
in each cell some genes are expressed and others are suppressed.
Emotions and the responses to emotions are controlled by the limbic system. True or False?
True
Oogenesis begins
during embryonic development.
The autonomic nervous system consists of two parts: the sympathetic and parasympathetic
divisions. The sympathetic division is responsible for which type of response?
Involuntary responses to extreme danger or stress
Suppose a pregnant woman took a drug that causes incomplete brain formation during fetal
development. When must the woman have taken the drug for this effect to occur?
In the first 2 months of development
Sexually transmitted diseases caused by viruses include herpes, AIDS, and
human papillomavirus (HPV).
The corpus callosum links the
right and left cerebral hemispheres.
4|Page
