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

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

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BCH 201

1 / 40

1. Glyceraldehyde 3-phosphate contains ------- carbon units

A. 6

B. 5

C. 3

D. 4

2 / 40

2. Non pathologic forms of ketosis are due to;

A. Diabetic ketoacidosis

B. Refsum's disease

C. Jamaican Vomiting sickness

D. The post absorptive phase of severe exercise

3 / 40

3. The pro-enzyme, trypsinogen in converted to active trypsin by _______,

A. Oligopeptides

B. Enteropeptidase

C. Elastase

D. Arginine

4 / 40

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

A. t-RNA

B. m-RNA

C. r-RNA

D. sn-RNA

5 / 40

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

A. sn-RNA

B. t-RNA

C. r-RNA

D. m-RNA

6 / 40

6. Which is not true about acetone?

A. Acetone productions can lethal levels in severe diabetic ketoacidosis

B. It is a product of slow, spontaneous nonenzymatic decarboxylation of some aceto-acetate

C. It is volatile and thus detectable in the breath

D. It is not produced under normal conditions

7 / 40

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

A. None of the options

B. Fructose 1, 6 biphosphate

C. Fructose 6-phosphate

D. Glucose

8 / 40

8. Thiolytic cleavage of β-ketoderivative by an incoming CoA to yield acetyl CoA is catalyzed by;

A. Enoyl CoA hydratase

B. Acyl CoA dehydrogenase

C. Thiolase

D. β-hydroxyacyl CoA dehydrogenase

9 / 40

9. Which of the following is termed as conserved gene order?

A. Ortholog

B. Microarray

C. Synteny

D. Paralog

10 / 40

10. The heat of vaporization of water is ________

A. 1260 kJ/g

B. 2060 kJ/g

C. 2260 J/g

D. 1060 J/g

11 / 40

11. The breakdown of one molecule of Glucose will yield ------ molecules of pyruvate

A. Four

B. Two

C. Five

D. Three

12 / 40

12. The degree of ionization does not depend on which of the following parameter?

A. Concentration

B. Current

C. Temperature

D. Nature of solvent

13 / 40

13. Which of the following is not correct about phosphorylation by IRS on serine residue?

A. Target tissues fail to respond to circulating insulin

B. It increases insulin levels

C. It is molecular mechanism for insulin resistance

D. It is an inhibitory phosphorylation

14 / 40

14. Which of the following statements is correct about column chromatography?

A. Resolution improves as column length increases

B. Mobile phase is a porous solid material kept in the column with appropriate chemical characteristics

C. Large proteins exit the column faster than tiny proteins

D. Mobile phase is a porous solid material kept in the column with appropriate chemical characteristics

15 / 40

15. Cellular energy currency is in form of;

A. ATP

B. All the options

C. ADP

D. Phosphates

16 / 40

16. Which of the following makes water a liquid at room temperature?

A. Noncovalent interactions

B. Van der Waals forces of attraction

C. Covalent bonding

D. Hydrogen bonds between water molecules

17 / 40

17. Oxidative phosphorylation of fatty acids in the TCA cycle requires which of the following;

A. NADH

B. FADH2

C. All the options

D. Acetyl coA

18 / 40

18. ATP contains ----- molecules of phosphates

A. 3

B. 2

C. 4

D. 5

19 / 40

19. Which is an aldose sugar?

A. All the options

B. Fructose 1,6-biphosphate

C. Glyceraldehydes 3-phosphate

D. Dihydroxyacetone phosphate

20 / 40

20. How many types of signal transducers are there?

A. 7

B. 4

C. 6

D. 8

21 / 40

21. Which of the following mixture in aqueous solution of equimolar concentration acts as a buffer solution?

A. CH3 COOH + NaOH(excess)

B. H2 SO4 + KOH

C. NH4OH (excess) + HCl

D. HNO3 + NaOH

22 / 40

22. When compared to the first immune response to the same antigen, which of the following is not a hallmark of the secondary immune response?

A. Antibody is generated fast

B. Antibody produced has a greater affinity for the antigen

C. Antibody is generated without T-cell help

D. Many antibodies are produced

23 / 40

23. Which of the following is true about the Z-DNA helix?

A. It is a permanent conformation of DNA

B. It has fewer base pairs per turn than B-DNA

C. It tends to be found at the 3’ end of the genes

D. It has alternating GC sequences

24 / 40

24. Which of these is an allosteric enzyme?

A. Phospho glucose isomerise

B. Hexokinase

C. Phosphofructokinase

D. Fructose 6-phosphate

25 / 40

25. ATP means

A. Adenine triphosphate

B. Adenosine triphosphate

C. Alanine triphosphate

D. None of the options

26 / 40

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

A. Enolase

B. Trypsin

C. Hexokinase

D. Chymotrypsin

27 / 40

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

A. Lipolysis of triglycerides into glycerol and free fatty acids

B. Activation of intracellular second messenger cascade

C. Phosphorylation of hormone sensitive lipase

D. None of the options

28 / 40

28. Which of the following is a intracellular second messengers?

A. IP3

B. Acetylcholine

C. Glycine

D. Glutamate

29 / 40

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

A. Glyceraldehyde 3-phosphate dehydrogenase

B. Aldolase

C. Triose phosphate isomerise

D. None of the options

30 / 40

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

A. Myelin sheath

B. Cell wall

C. Plasma membrane

D. Inner mitochondrial membrane of the hepatocyte

31 / 40

31. Who deduced the double-helical structure of DNA?

A. Watson and Francis Crick

B. Mendel

C. Frederick Sanger

D. Anton van Leeuwenhoek

32 / 40

32. Which is a ketose sugar isomer?

A. Dihydroxyacetone phosphate

B. Fructose 1,6-biphosphate

C. Glyceraldehydes 3-phosphate

D. None of the options

33 / 40

33. Proteolytic enzymes in pancreatic juice include all but:

A. Pro-carboxypeptidase

B. Chymotripsinogens

C. Trypsonogen

D. Pepsinogen

34 / 40

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

A. Phosphatidylserine

B. Phosphatidylglycerol

C. Sphingomyelin

D. Phosphatidylethanolamine

35 / 40

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

A. Aminopeptidase

B. Enteropeptidase

C. Oligopeptides

D. Arginine

36 / 40

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

A. X-Ray crystallography

B. Ultracentrifuge

C. Electron microscope

D. Light microscope

37 / 40

37. The enzymes involved in ketogenesis are

A. HMGcoA lyase

B. β-ketothiolase

C. All the options

D. HMG-coA synthase

38 / 40

38. Disorders of fatty acid oxidation include;

A. Ketoacidosis

B. All the options

C. Carnitine deficiency

D. Carnitine deficiency

39 / 40

39. The second stage of Glycolysis consists of ------ chemical reaction steps

A. 4

B. 7

C. 6

D. 5

40 / 40

40. Which of the following is true about phosphodiester linkage?

A. 5’-phosphate group of one nucleotide unit is joined to the 5’-hydroxyl group of the next nucleotide

B. 3’-phosphate group of one nucleotide unit is joined to the 5’-hydroxyl group of the next nucleotide

C. 5’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the next nucleotide

D. 3’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the next nucleotide

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Booker

1 year ago

Where is the test??

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Aruwaji Philip

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

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