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Home ‣ Biochemistry ‣ Membrane Structure and Functions See What Others Are Saying!
- Question
Which of the following is correct?
Options- A. Membranes form boundaries around the cell and distinct subcellular components
- B. Membranes act as selectively permeable barrier
- C. Membranes contain varying amount of lipid and protein and some contain small amount of carbohydrates
- D. All of the above
- Correct Answer
- All of the above
- 1. The main difference between an acid and a base is that
Options- A. bases are polar molecules and acids are not
- B. acids are polar molecules and bases are not
- C. bases donate hydrogen ions in water while acids accept hydrogen ions
- D. acids donate hydrogen ions in water while bases accept hydrogen ions Discuss
- 2. During vigorous exercise, pyruvate produced by glycolysis is converted to
Options- A. acetate
- B. lactate
- C. monosodium phosphate
- D. pyruvic acid Discuss
- 3. What is the behavior in which T cells and B cells constantly travel throughout the body seeking out and destroying foreign substances?
Options- A. Antibody-mediated immune response
- B. Immune surveillance
- C. Cell-mediated immune response
- D. Vaccination Discuss
- 4. Transcription results in
Options- A. an amino acid chain
- B. messenger RNA
- C. complementary DNA
- D. Okazaki fragments Discuss
- 5. Restriction enzymes
Options- A. protect bacteria from viral infection
- B. cut DNA in a staggered fashion
- C. cut DNAs producing a blunt end
- D. all of the above Discuss
- 6. A deficiency of Vitamin K results in a decreased level of
Options- A. prothrombin
- B. thrombin
- C. fibrin
- D. fibrinogen Discuss
- 7. Buried hydrophobic side chains in a globular protein fit into a hole formed by the side chains of
Options- A. 1-3 other amino acids
- B. 5-7 other amino acids
- C. 9-12 other amino acids
- D. 13-15 other amino acids Discuss
- 8. Common feature in all serine proteases is a
Options- A. hydrophobic specificity pocket
- B. hydrophilic specificity pocket
- C. cluster of reactive serine residues
- D. single reactive serine residue Discuss
- 9. A ketogenic amino acid is one which degrades to
Options- A. keto-sugars
- B. either acetyl CoA or acetoacetyl CoA
- C. pyruvate or citric acid cycle intermediates
- D. multiple intermediates including pyruvate or citric acid cycle intermediates and acetyl CoA or acetoacetyl CoA Discuss
- 10. If the egg white protein, ovalbumin, is denatured in a hard-boiled egg, then which of the following is least affected?
Options- A. The primary structure of ovalbumin
- B. The secondary structure of ovalbumin
- C. The tertiary structure of ovalbumin
- D. The quaternary structure of ovalbumin Discuss
More questions
Correct Answer: acids donate hydrogen ions in water while bases accept hydrogen ions
Correct Answer: lactate
Correct Answer: Immune surveillance
Correct Answer: messenger RNA
Correct Answer: all of the above
Correct Answer: prothrombin
Correct Answer: 5-7 other amino acids
Correct Answer: single reactive serine residue
Correct Answer: either acetyl CoA or acetoacetyl CoA
Correct Answer: The primary structure of ovalbumin
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