McqMate
Chapters
1. |
Vitamins co-transported with Na+ include all EXCEPT: |
A. | thiamine |
B. | folate |
C. | niacin |
D. | riboflavin |
E. | pyridoxine |
Answer» B. folate |
2. |
Fat soluble vitamins include all EXCEPT: |
A. | vitamin A |
B. | vitamin C |
C. | vitamin D |
D. | vitamin E |
E. | vitamin K |
Answer» B. vitamin C |
3. |
The largest daily volume of secretions in the GIT originates in the: |
A. | salivary glands |
B. | stomach |
C. | gallbladder (bile) |
D. | pancreas |
E. | intestine |
Answer» B. stomach |
4. |
Iron: |
A. | most dietary iron is in the ferrous state |
B. | most iron is absorbed in the upper small intestine |
C. | a ferritin micelle contains 1,000 atoms of iron |
D. | 90% of body iron is in haemoglobin |
E. | 10% of dietary iron is normally absorbed |
Answer» B. most iron is absorbed in the upper small intestine |
5. |
Ketone bodies: |
A. | are not formed under normal conditions |
B. | are all moderately strong acids |
C. | are formed when intracellular glucose is deficient |
D. | are easily metabolised in the liver |
E. | all of the above |
Answer» C. are formed when intracellular glucose is deficient |
6. |
Creatinuria can occur in all EXCEPT: |
A. | healthy children |
B. | pregnant women |
C. | starvation |
D. | hypothyroidism |
E. | poorly controlled diabetes mellitus |
Answer» D. hypothyroidism |
7. |
Cations in normal (fasting) gastric juice include all EXCEPT: |
A. | Na+ |
B. | Ca++ |
C. | K+ |
D. | Mg++ |
E. | H+ |
Answer» B. Ca++ |
8. |
Human hepatic bile (hepatic bile duct) is largely: |
A. | water |
B. | bile salts |
C. | bile pigment |
D. | cholesterol |
E. | lecithin |
Answer» A. water |
9. |
The nutritionally essential amino acids include: |
A. | alanine |
B. | cysteine |
C. | tyrosine |
D. | methionine |
E. | glutamine |
Answer» D. methionine |
10. |
The largest glycogen store in the adult body is in the: |
A. | liver |
B. | spleen |
C. | muscle |
D. | pancreas |
E. | circulating red cell mass |
Answer» C. muscle |
11. |
TSH secretion is stimulated by: |
A. | dopamine |
B. | somatostatin |
C. | cold temperatures |
D. | stress |
E. | glucocorticoids |
Answer» C. cold temperatures |
12. |
Thyroxine (T4) has greater affinity for: |
A. | thyroxine-binding globulin |
B. | transthyretin |
C. | thyroxine-binding pre-albumin |
D. | albumin |
E. | triiodothyronine |
Answer» A. thyroxine-binding globulin |
13. |
GLUT is an example of: |
A. | simple diffusion |
B. | facilitated diffusion |
C. | primary active transport |
D. | secondary active transport |
E. | endocytosis |
Answer» B. facilitated diffusion |
14. |
The most common cell type of the endocrine pancreas is: |
A. | A cells |
B. | B cells |
C. | C cells |
D. | D cells |
E. | F cells |
Answer» B. B cells |
15. |
Both insulin and somatostatin: |
A. | are released from extra-pancreatic sites |
B. | receptors are linked to G proteins |
C. | inhibit release of glucagon |
D. | cause K+ uptake by cells |
E. | are polypeptides containing two chains linked by disulphide bonds |
Answer» C. inhibit release of glucagon |
16. |
Aldosterone is secreted by: |
A. | zona reticularis |
B. | zona fasciculata |
C. | zona glomerulosa |
D. | zona fasciculata and reticularis |
E. | zona glomerulosa and fasciculata |
Answer» C. zona glomerulosa |
17. |
Regarding aldosterone: |
A. | it is released in response to hypokalaemia |
B. | it has glucocorticoid action |
C. | it works via G proteins to increase Na+ reabsorption |
D. | its release results in alkaline urine |
E. | it is highly protein-bound |
Answer» B. it has glucocorticoid action |
18. |
Calcitonin secretion is increased by: |
A. | gastrin |
B. | CCK |
C. | secretin |
D. | glucagon |
E. | all of the above |
Answer» E. all of the above |
19. |
All of the following bind to intracellular receptors EXCEPT: |
A. | cortisol |
B. | aldosterone |
C. | 1,25-DHCC |
D. | parathyroid hormone |
E. | thyroxine |
Answer» D. parathyroid hormone |
20. |
How many trophic hormones does the anterior pituitary produce? |
A. | 2 |
B. | 3 |
C. | 5 |
D. | 6 |
E. | 8 |
Answer» C. 5 |
21. |
All of the following are high energy phosphate compounds EXCEPT: |
A. | adenosine triphosphate |
B. | glucose 6-phosphate |
C. | creatine phosphate |
D. | adenosine diphosphate |
E. | guanosine triphosphate |
Answer» B. glucose 6-phosphate |
22. |
Under aerobic conditions, 1mol glucose forms: |
A. | 2mol ATP |
B. | 8mol ATP |
C. | 16mol ATP |
D. | 38mol ATP |
E. | 42mol ATP |
Answer» D. 38mol ATP |
23. |
The approximate ratio of fat : CHO energy stores is: |
A. | 2 : 1 |
B. | 4 : 1 |
C. | 10 : 1 |
D. | 20 : 1 |
E. | 40 : 1 |
Answer» E. 40 : 1 |
24. |
Nutritionally essential amino acids include: |
A. | glycine |
B. | serine |
C. | lysine |
D. | glutamine |
E. | tyrosine |
Answer» C. lysine |
25. |
Uric acid is formed by the breakdown of: |
A. | purines |
B. | pyrimidines |
C. | glutamine |
D. | urea |
E. | all of the above |
Answer» A. purines |
26. |
The LDL contains which aproprotein? |
A. | A |
B. | B-48 |
C. | B-100 |
D. | C |
E. | E |
Answer» C. B-100 |
27. |
Regarding cellular metabolism of cholesterol: |
A. | it inhibits HMG-CoA red??? |
B. | is processed in part to other cholesterol esters by the enzyme acetyl CoA ??? acyltransferase |
C. | it inhibits the formation of CO2 receptors |
D. | all of the above |
E. | none of the above |
Answer» D. all of the above |
28. |
Which of the following substances decreases the activity of hormone-sensitive lipase? |
A. | adrenaline |
B. | thyroxine |
C. | serotonin |
D. | TSH |
E. | prostaglandin E |
Answer» E. prostaglandin E |
29. |
Chromium deficiency leads to: |
A. | insulin resistance |
B. | hypogondal dwarfism |
C. | anaemia |
D. | changes in ossification |
E. | thyroid disorder |
Answer» A. insulin resistance |
30. |
Vitamin B1 (thiamine) deficiency leads to: |
A. | anaemia |
B. | beri beir |
C. | convulsions |
D. | dermatitis |
E. | pellagra |
Answer» B. beri beir |
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