PCAT PRACTISE EXAM |VERIFIED QUESTIONS AND CORRECT DETAILED
ANSWERS|RATED AND GRADED A+ NEW UPDATE| 2026/2027
Centers for regulating hunger, sleep, thirst, body temperature, water balance, and blood pressure are
found in the - ANSWER✔ hypothalamus
A patient's anterior pituitary gland is removed due to the presence of a malignant tumor. Plasma
concentration of which of the following hormones would be least affected following surgery? -
ANSWER✔ insulin
Red-green color-blindness is a sex-linked recessive trait. What is the probability that a boy born to an
unaffected man and a carrier woman will be color blind? - ANSWER✔ 1/2
cecum - ANSWER✔ - normal gut flora "hang out" here
- the blind out pouching of the large intestine
A patient who has gained 40 lbs in the past 3 months goes to her physician with complaints of fatigue.
She is found to have a goiter and a decreased metabolic rate. Based on this information, the patient
most likely has a deficiency of - ANSWER✔ thyroxine
Marfan syndrome is an inherited disorder with a deleterious effect on the connective protein fibrillin.
Which of the following is least likely to be a symptom of this disorder? - ANSWER✔ peripheral
neuropathy because it is a disease of the nervous tissue rather than connective tissue
In the menstrual cycle, what is triggered by a surge in lutenizing hormone? - ANSWER✔ ovulation
In a eukaryotic cell, which organelle's primary function is protein synthesis? - ANSWER✔ ribosome
Kleinfelter's syndrome (XXY) results from which type of chromosomal alteration? - ANSWER✔
nondisjunction: the incomplete separation of homologous X chromosomes meiosis.
ANSWERS|RATED AND GRADED A+ NEW UPDATE| 2026/2027
Centers for regulating hunger, sleep, thirst, body temperature, water balance, and blood pressure are
found in the - ANSWER✔ hypothalamus
A patient's anterior pituitary gland is removed due to the presence of a malignant tumor. Plasma
concentration of which of the following hormones would be least affected following surgery? -
ANSWER✔ insulin
Red-green color-blindness is a sex-linked recessive trait. What is the probability that a boy born to an
unaffected man and a carrier woman will be color blind? - ANSWER✔ 1/2
cecum - ANSWER✔ - normal gut flora "hang out" here
- the blind out pouching of the large intestine
A patient who has gained 40 lbs in the past 3 months goes to her physician with complaints of fatigue.
She is found to have a goiter and a decreased metabolic rate. Based on this information, the patient
most likely has a deficiency of - ANSWER✔ thyroxine
Marfan syndrome is an inherited disorder with a deleterious effect on the connective protein fibrillin.
Which of the following is least likely to be a symptom of this disorder? - ANSWER✔ peripheral
neuropathy because it is a disease of the nervous tissue rather than connective tissue
In the menstrual cycle, what is triggered by a surge in lutenizing hormone? - ANSWER✔ ovulation
In a eukaryotic cell, which organelle's primary function is protein synthesis? - ANSWER✔ ribosome
Kleinfelter's syndrome (XXY) results from which type of chromosomal alteration? - ANSWER✔
nondisjunction: the incomplete separation of homologous X chromosomes meiosis.
