Q: Which of the following equations correctly represents glycogenolysis?

$$\text{Glycogen} \rightarrow \text{Glucose}$$

Question 1

Which of the following best describes the mechanism of enzyme amplification in hormone action?

Accepted Answer

A single hormone molecule activates multiple enzymes, each of which catalyzes the formation of thousands of product molecules.

Question 2

A patient presents with short stature but normal body proportions and mental development. Which condition is most likely?

Accepted Answer

Pituitary dwarfism

Question 3

Which hormone is considered the 'major metabolic' hormone in the human body?

Accepted Answer

Thyroxine (T4)

Question 4

A person with Type 1 diabetes mellitus is most likely to experience which of the following?

Accepted Answer

Autoimmune destruction of pancreatic beta cells

Question 5

Which of the following best describes the difference between the anterior and posterior pituitary glands?

Accepted Answer

The anterior pituitary is a true endocrine gland, while the posterior pituitary stores and releases hormones produced by the hypothalamus.

Question 6

Which of the following hormones can increase blood glucose levels?

Accepted Answer

Glucagon

Question 7

What is gluconeogenesis?

Accepted Answer

The formation of glucose from non-carbohydrate sources

Question 8

A patient with polycythemia is at increased risk for which of the following complications?

Accepted Answer

Thrombosis due to increased blood viscosity

Question 9

Which blood type is considered the universal donor for red blood cell transfusions?

Accepted Answer

O-

Question 10

A mother who is Rh-negative is pregnant with an Rh-positive baby. What condition may develop in the newborn if the mother has previously been sensitized?

Accepted Answer

Erythroblastosis fetalis

Question 11

Which of the following is found in plasma but not in formed elements of blood?

Accepted Answer

Albumin

Question 12

Which leukocyte is most abundant and primarily responsible for phagocytosis of bacteria?

Accepted Answer

Neutrophil

Question 13

A reticulocyte count is useful in diagnosing which of the following?

Accepted Answer

The rate of erythropoiesis

Question 14

Which hormone is released in response to low blood oxygen levels and stimulates red blood cell production?

Accepted Answer

Erythropoietin

Question 15

A patient with anemia due to vitamin B12 deficiency is most likely suffering from which type of anemia?

Accepted Answer

Pernicious anemia

Question 16

Which of the following is a function of blood discussed in class?

Accepted Answer

Transport of oxygen and nutrients

Question 17

Which of the following best describes the role of the adrenal medulla in the stress response?

Accepted Answer

It secretes epinephrine and norepinephrine to prepare the body for 'fight or flight'.

Question 18

During the General Adaptation Syndrome, which hormone is primarily released during the resistance stage?

Accepted Answer

Cortisol

Question 19

Which of the following equations correctly represents glycogenolysis?

Accepted Answer

$$	ext{Glycogen} ightarrow 	ext{Glucose}$$

Question 20

A patient at high altitude experiences increased erythropoietin production. What is the most likely physiological reason?

Accepted Answer

Lower oxygen availability stimulates erythropoietin release to increase RBC production.

Midterm 2 Study Guide: Special Senses, Endocrine System, and Blood

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