Bio 139 Final Exam UPDATED QUESTIONS AND CORRECT ANSWERS

Bio 139 Final Exam UPDATED QUESTIONS
AND CORRECT ANSWERS
Name the hormone that increases metabolic rate, oxygen consumption, heat production,
appetite, alertness, and reflex speed.

A. Adrenocorticotropic hormone

B. Triiodothyronine

C. Cortisol

D. Glucagon - CORRECT ANSWER B. Triiodothyronine



What is the major hormone released into the blood from the thyroid follicles?

A. Triiodothyronine

B. Tetraiodothyronine

C. Calcitonin

D. Parathyroid hormone - CORRECT ANSWER B. Tetraiodothyronine



Place the events in the Renin-Angiotensin-Aldosterone pathway in the correct order.

1. Angiotensin Converting Enzyme (ACE) produces Angiotensin 2

2. A decrease in blood pressure causes the production of renin
3. Angiotensinogen is secreted into the blood

4. Angiotensin2 causes the zona glomerulosa to produce Aldosterone

5. Angiotensinogen is converting to Angiotensin 1


A. 1,2,3,4,5

B. 5,4,3,2,1

C. 3,2,5,1,4

D. 4,1,5,2,3 - CORRECT ANSWER C. 3,2,5,1,4



Where is Angiotensinogen synthesized?

,A. Lungs

B. Liver

C. Kidney

D. Heart - CORRECT ANSWER B. Liver



What organ produces ACE?

A. Lungs

B. Liver

C. Kidney

D. Heart - CORRECT ANSWER A. Lungs



What hormone regulates the metabolism of glucose, helps the body adapt to stress, and is
anti-inflammatory?

A. Aldosterone

B. Cortisol

C. Insulin

D. Glucagon - CORRECT ANSWER B. Cortisol



(Blank) is the hormone that increases blood pressure, heart rate, blood flow to muscles,
pulmonary airflow, and metabolic rate?

A. Growth Hormone
B. Cortisol

C. Insulin

D. Epinephrine - CORRECT ANSWER D. Epinephrine



What is the purpose of the pancreatic islets?

A. The cells of the islets control electrolyte levels in the blood
B. The islet cells control amino acid levels in the blood
C. The islets control glycemia

,D. The hormones produced by the islets have a protein-sparing effect. - CORRECT
ANSWER C. The islets control glycemia



Which hormones cause the glucose-sparing effect to ensure the brain has plenty of glucose?

A. Growth Hormone, T4, Insulin

B. ACTH, aldosterone, estradiol
C. Cortisol, Glucagon, Epinephrine

D. Testosterone, T3, TSH, Norepinephrine - CORRECT ANSWER C. Cortisol,
Glucagon, Epinephrine



Which of the following hormones decrease glucose levels in the plasma?

A. Growth Hormone

B. Glucagon

C. Insulin
D. Epinephrine

E. Cortisol - CORRECT ANSWER C. Insulin



What cell in the ovary produces estradiol, the main estrogen?

A. Thecal cells

B. Granulosa cells

C. Ovum

D. Interstitial endocrine cells - CORRECT ANSWER B. Granulosa cells



What is the correct sequence of events that produces thyroid hormones?

1. Lysosomal enzymes degrade thyroglobulin

2. Follicular cells synthesize thyroglobulin

3. Iodine atoms are added to tyrosines
4. Thyroid hormones are released into the blood
5. Thyroglobulin is secreted into the center of the follicle

, A. 1,3,5,2,4

B. 4,2,5,3,1

C. 1,2,3,4,5

D. 2,5,3,1,4 - CORRECT ANSWER D. 2,5,3,1,4



What enzyme is activated by a G-protein to produce IP3, and DAG?

A. Adenylate

B. Phospholipase

C. Protein kinase

D. Phosphodiesterase 5 - CORRECT ANSWER B. Phospholipase



Beginning with the hypothalamus and ending in target tissue, place the following substance
in the correct order.

1. T1 and T2

2. Thyroglobulin

3. Thyroid stimulating hormone

4. Thyro-binding globulin

5. Thyrotropin releasing Hormone
6. T3 and T4



A. 6,4,2,5,3,1

B. 1,3,5,2,4,6

C. 5,3,2,1,6,4

D. 1,2,3,4,5,6 - CORRECT ANSWER C. 5,3,2,1,6,4



Place the events of a target cells response to a peptide hormone in the correct order.

1. Adenylate cyclase is activated
2. cAMP activates protein kinases