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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70 – 100 A

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BCH 201

1 / 40

1. Splitting of Fructose 1, 6 biphosphate yields ----- molecules of glyceraldehyde 3- phosphate

A. 5

B. 4

C. 3

D. 2

2 / 40

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

A. Glycoproteins

B. Glycolipids

C. Proteoglycans

D. Glycosaminoglycans

3 / 40

3. 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

4 / 40

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

A. HNO3 + NaOH

B. CH3 COOH + NaOH(excess)

C. NH4OH (excess) + HCl

D. H2 SO4 + KOH

5 / 40

5. The number of milligrams of KOH required to neutralize the free and combined fatty acid in one gram of a given fat is called __________

A. Polenske number

B. Iodine number

C. Acid number

D. Saponification number

6 / 40

6. The enzymes that are involved in this stage of Glycolysis include all but;

A. None of the options

B. Enolase

C. Pyruvate kinase

D. 2-phosphoglyceromutase

7 / 40

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

A. 5

B. 7

C. 6

D. 4

8 / 40

8. Which is true about ketone bodies?

A. All the options

B. They are synthesized during prolonged fasting

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

D. They are water-soluble

9 / 40

9. The heat of vaporization of water is ________

A. 1260 kJ/g

B. 2060 kJ/g

C. 2260 J/g

D. 1060 J/g

10 / 40

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

A. IP3

B. Glutamate

C. Acetylcholine

D. Glycine

11 / 40

11. Which is a ketose sugar isomer?

A. Dihydroxyacetone phosphate

B. None of the options

C. Fructose 1,6-biphosphate

D. Glyceraldehydes 3-phosphate

12 / 40

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

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

B. None of the options

C. Fatty acid oxidation occurs in the mitochondrial matrix

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

13 / 40

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

A. None of the options

B. They are degraded to yield ammonia

C. All the options

D. They are used mainly to synthesize proteins

14 / 40

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

A. Hepatic conversion of acetyl coA from FA oxidation

B. Hepatic gluconeogenesis

C. Amino acid breakdown to ketone bodies

D. Hepatic and skeletal muscle glycogenesis

15 / 40

15. How many types of signal transducers are there?

A. 8

B. 6

C. 4

D. 7

16 / 40

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

A. Bulkiness

B. Occurrence of alanine and glycine residues

C. I nteraction between R groups spaced three residues apart

D. Electrostatic repulsion

17 / 40

17. Which of the following enzyme is used in PCR?

A. EcoRI

B. HRP

C. EcoRII

D. Taq DNA polymerase

18 / 40

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

A. Brain

B. Cardiac muscle

C. Red blood cells

D. Skeletal muscle

19 / 40

19. In which of the following, glucose residues are linked by β1 &arr; 4 glycosidic bonds?

A. Starch

B. Amylose

C. Cellulose

D. Glycogen

20 / 40

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

D. Large proteins exit the column faster than tiny proteins

21 / 40

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

A. Integrin

B. Cytochrome c

C. Cadherin

D. N-CAM

22 / 40

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

A. Phospho glucose isomerase

B. Phosphofructokiase

C. Hexokinase

D. Isoglucokinase

23 / 40

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

A. Bacterial denitrogenate reductase

B. Bacterial glutamine synthase

C. Bacterial denitrogenate oxidase

D. Phosphatase

24 / 40

24. Proteolytic enzymes in pancreatic juice include all but:

A. Pro-carboxypeptidase

B. Trypsonogen

C. Chymotripsinogens

D. Pepsinogen

25 / 40

25. Which is not true about acetone?

A. It is not produced under normal conditions

B. Acetone productions can lethal levels in severe diabetic ketoacidosis

C. It is volatile and thus detectable in the breath

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

26 / 40

26. 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

27 / 40

27. The relationship between oxygen concentration and the fraction of binding sites occupied in myoglobin can best be described as ________

A. Hyperbolic

B. Parabolic

C. Linear with a negative slope

D. Linear with a positive slope

28 / 40

28. Recombinant DNA construction involves ____________

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

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

C. Cleaving DNA with ligase and joining with endonuclease

D. Cleaving and joining DNA with restriction endonuclease

29 / 40

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

A. Phospholipids

B. Sphingolipids

C. Ether lipids

D. Glycolipids

30 / 40

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

A. Brain

B. Liver

C. Skeletal muscles

D. Kidneys

31 / 40

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

A. None of the options

B. Glucose

C. Fructose 6-phosphate

D. Fructose 1, 6 biphosphate

32 / 40

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

A. Hydrolase

B. Oxidoreductase

C. Ligase

D. Somerase

33 / 40

33. 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. 5’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the next nucleotide

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

34 / 40

34. This is not an essential amino acid.

A. Glycine

B. Phenylalanine

C. Valine

D. Tryptophan

35 / 40

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

A. sn-RNA

B. m-RNA

C. t-RNA

D. r-RNA

36 / 40

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

A. Anton van Leeuwenhoek

B. Frederick Sanger

C. Watson and Francis Crick

D. Mendel

37 / 40

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

A. All the options

B. Cardiac muscle

C. Skeletal muscle

D. Brain

38 / 40

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

A. Hydration of the unsaturated fatty acyl CoA

B. Oxidation of fatty acyl CoA

C. Oxidation of the β-hydroxy derivative

D. None of the options

39 / 40

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

A. Oligopeptides

B. Enteropeptidase

C. Elastase

D. Arginine

40 / 40

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

A. Bradykinin

B. Insulin

C. Glucagon

D. Corticotropin

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Booker

1 year ago

Where is the test??

Author

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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