BCH 201 CBT PRACTICE TEST

Ace/Undergragra March 23, 2023

4 140 1 minute read

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Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace BCH 201 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions

Do not waste time on a question you don’t know

Move as fast as possible and starting with questions that don’t have calculation first to save time

Always crosscheck

Don’t be in a hurry to submit, you are not in a competition

Don’t be scared. Getting an A is easy

Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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Created on March 20, 2023 By

Ace/Undergragra

BCH 201

1 / 40

1. Which of the following involves carrying genetic information from DNA for protein synthesis?

A. m-RNA

B. sn-RNA

C. t-RNA

D. r-RNA

2 / 40

2. Which is a ketose sugar isomer?

A. None of the options

B. Dihydroxyacetone phosphate

C. Fructose 1,6-biphosphate

D. Glyceraldehydes 3-phosphate

3 / 40

3. The key enzymes for utilization of ketone bodies is found in these tissues except;

A. Liver

B. Kidneys

C. Brain

D. Skeletal muscles

4 / 40

4. The stability of an α-helix is not affected by which of the following?

A. Electrostatic repulsion

B. Bulkiness

C. I nteraction between R groups spaced three residues apart

D. Occurrence of alanine and glycine residues

5 / 40

5. Which of the following is a 39-residue hormone of the anterior pituitary gland?

A. Glucagon

B. Bradykinin

C. Corticotropin

D. Insulin

6 / 40

6. Splitting of 1,3 Diphosphoglycerate is catalyzed by;

A. Triose phosphate isomerise

B. None of the options

C. Aldolase

D. Phosphoglycerate kinase

7 / 40

7. Mobilization of free fatty acids from fat stores is herald by all these mechanisms but

A. Phosphorylation of hormone sensitive lipase

B. None of the options

C. Activation of intracellular second messenger cascade

D. Lipolysis of triglycerides into glycerol and free fatty acids

8 / 40

8. Which is an aldose sugar?

A. Glyceraldehydes 3-phosphate

B. Dihydroxyacetone phosphate

C. Fructose 1,6-biphosphate

D. All the options

9 / 40

9. Which of the following hormone is responsible for the activation of phospholipase C?

A. Vasopressin

B. Serotonin

C. Cortisol

D. Adrenaline

10 / 40

10. Utilization of fatty acids for energy production is absent in which of these tissues

A. Brain

B. Skeletal muscle

C. Cardiac muscle

D. Red blood cells

11 / 40

11. Which of the following membranes contain low cholesterol and high cardiolipin?

A. Cell wall

B. Inner mitochondrial membrane of the hepatocyte

C. Myelin sheath

D. Plasma membrane

12 / 40

12. During prolonged fasting, the body source its major metabolic fuel through which of the following metabolic events;

A. Hepatic and skeletal muscle glycogenesis

B. Hepatic gluconeogenesis

C. Amino acid breakdown to ketone bodies

D. Hepatic conversion of acetyl coA from FA oxidation

13 / 40

13. Proteolytic enzymes in pancreatic juice include all but:

A. Pro-carboxypeptidase

B. Trypsonogen

C. Chymotripsinogens

D. Pepsinogen

14 / 40

14. Which is not true about cellular fatty acid metabolism?

A. Free fatty acids travels through the blood stream bound to serum albumin

B. None of the options

C. Fatty acid activation occurs in the cytosol as fatty acyl CoAs

D. Fatty acid oxidation occurs in the mitochondrial matrix

15 / 40

15. Conversion of glyceraldehydes 3-phosphate to 1,3 - diphosphoglycerate, catalysed by

A. Glyceraldehyde 3-phosphate dehydrogenase

B. Triose phosphate isomerise

C. None of the options

D. Aldolase

16 / 40

16. Which of the following membrane lipids have a direct glycosidic linkage between the head-group sugar and the backbone glycerol?

A. Phospholipids

B. Glycolipids

C. Sphingolipids

D. Ether lipids

17 / 40

17. Which is true about ketone bodies?

A. They are products of fatty acid and amino acid catabolism

B. They are water-soluble

C. All the options

D. They are synthesized during prolonged fasting

18 / 40

18. The first stage of the glycolytic pathway has______ chemical reaction steps

A. 10

B. 3

C. 7

D. 4

19 / 40

19. The first substrate of the second stage of Glycolysis is;

A. Fructose 6-phosphate

B. None of the options

C. Glucose

D. Fructose 1, 6 biphosphate

20 / 40

20. Which of the following are important for white blood cell recognition?

A. Glycoproteins

B. Glycosaminoglycans

C. Proteoglycans

D. Glycolipids

21 / 40

21. The heat of vaporization of water is ________

A. 2260 J/g

B. 1260 kJ/g

C. 2060 kJ/g

D. 1060 J/g

22 / 40

22. Which of the following enzyme catalyzes a reaction that introduces reduced nitrogen ito cellular metabolism?

A. Bacterial denitrogenate reductase

B. Phosphatase

C. Bacterial glutamine synthase

D. Bacterial denitrogenate oxidase

23 / 40

23. Arrangement of nucleotides in DNA can be seen using which of the following instruments?

A. Ultracentrifuge

B. Light microscope

C. Electron microscope

D. X-Ray crystallography

24 / 40

24. The first step of the first stage of Glycolysis, phosporylation of glucose is catalyzed by which enzyme?

A. Phosphofructokiase

B. Isoglucokinase

C. Phospho glucose isomerase

D. Hexokinase

25 / 40

25. Which of the following is an example of epimers?

A. Galactose & Mannose

B. Glucose & Galactose

C. Glucose & Ribose

D. Mannose & Glucose

26 / 40

26. Cellular energy currency is in form of;

A. All the options

B. ADP

C. Phosphates

D. ATP

27 / 40

27. ATP contains ----- molecules of phosphates

A. 5

B. 3

C. 2

D. 4

28 / 40

28. Which of the following is a choline-containing lipid?

A. Phosphatidylglycerol

B. Phosphatidylserine

C. Sphingomyelin

D. Phosphatidylethanolamine

29 / 40

29. The fate of Free Amino Acids include all but:

A. They are degraded to yield ammonia

B. They are used mainly to synthesize proteins

C. All the options

D. None of the options

30 / 40

30. Which of the following is a function of chaperone protein?

A. provides a template for how the proteins should fold

B. It rescues proteins that have folded improperly and allowed them to refold properly

C. It degrades proteins that have folded improperly

D. It degrades proteins that have folded improperly

E. It degrades proteins that have folded properly

31 / 40

31. The process of β-oxidation of fatty acids includes all but one of the process

A. Oxidation of the β-hydroxy derivative

B. Oxidation of fatty acyl CoA

C. Hydration of the unsaturated fatty acyl CoA

D. None of the options

32 / 40

32. Which of these is an allosteric enzyme?

A. Fructose 6-phosphate

B. Hexokinase

C. Phospho glucose isomerise

D. Phosphofructokinase

33 / 40

33. Which of the following catalyzes the reversible degradation of 2-phosphoglycerate to phosphoenolpyruvate?

A. Enolase

B. Trypsin

C. Hexokinase

D. Chymotrypsin

34 / 40

34. Which of the following proteins does not function in cell-cell interaction?

A. Cytochrome c

B. N-CAM

C. Integrin

D. Cadherin

35 / 40

35. Based on which of the following enzymes Hydrolysis reactions are catalyzed?

A. Somerase

B. Oxidoreductase

C. Ligase

D. Hydrolase

36 / 40

36. The enzymes involved in ketogenesis are

A. HMG-coA synthase

B. β-ketothiolase

C. HMGcoA lyase

D. All the options

37 / 40

37. The digestive enzyme that completes digestion of small peptides within the intestinal mucosal cells is ______,

A. Arginine

B. Enteropeptidase

C. Oligopeptides

D. Aminopeptidase

38 / 40

38. Recombinant DNA construction involves ____________

A. Cleaving DNA with a restriction endonuclease and joining with ligase

B. Cleaving DNA with ligase and joining with endonuclease

C. Cleaving DNA with a restriction endonuclease and joining with polymerase

D. Cleaving and joining DNA with restriction endonuclease

39 / 40

39. Disorders of fatty acid oxidation include;

A. All the options

B. Ketoacidosis

C. Carnitine deficiency

D. Carnitine deficiency

40 / 40

40. Ketones are excellent fuels for many non hepatic tissues including;

A. Cardiac muscle

B. All the options

C. Skeletal muscle

D. Brain

Your score is

The average score is 49%

Please do well to drop a comment if this has really helped you. Thanks❤️

Ace/Undergragra March 23, 2023

4 140 1 minute read

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4 Comments

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Booker

2 months ago

Where is the test??

Author

Reply to Booker

I’m just realizing it.Currently working on making it active, please bear with me.

Oladimeji Oluwanifemi Hannah

Where the test dey

Reply to Oladimeji Oluwanifemi Hannah

I’m currently working on bringing the test live. Please bear with me

Ace/Undergragra
Thank you for stopping by....
Salimon
Great works...
Masaud salihu Mohammed
I like start payment my school fees...
Chioma Goodness Ekpo
Thanks, it's really helpful...
Ace/Undergragra
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