Discussion
Home ‣ Biochemistry ‣ Cell Structure and Compartments See What Others Are Saying!
- Question
In which of the following cell organelles, it is expected to find the biochemical reactions that harness energy from the breakdown of sugar molecules to synthesize large amounts of ATP?
Options- A. Lysosome
- B. Vesicles
- C. Mitochondria
- D. Plasma membrane
- Correct Answer
- Mitochondria
- 1. Vitamins are essential because the organism
Options- A. can't synthesize these compounds at all
- B. can synthesize these compounds partially
- C. can't synthesize these compounds in the adequate amounts
- D. none of the above Discuss
- 2. What would happen if the anti-human Ig-conjugate is not washed free of the well before the substrate is added?
Options- A. The ELISA would not develop when the substrate was added
- B. The ELISA would develop normally
- C. All wells would show uniform over-development due to unbound and excess anti-human Ig enzyme conjugate
- D. None of the above Discuss
- 3. The unfavourable free energy associated with not satisfying a hydrogen bond after formation of the double helix is approximately
Options- A. 10 kJ/mol
- B. 20 kJ/mol
- C. 25 kJ/mol
- D. 30 kJ/mol Discuss
- 4. DiGeorge's syndrome is characterized by the lack of a thymus The mouse model closest to this human disease would be a
Options- A. knock-out mouse for RAG-1 and RAG-2
- B. knock-out mouse for a thymus
- C. nude mouse
- D. recombinant mouse for CD3 Discuss
- 5. Which amino acids would most likely reside in the membrane-anchoring domain of a membrane embedded protein?
Options- A. Isoleucine, valine and phenylalanine
- B. Phenylalanine, valine, and aspartate
- C. Leucine, threonine, and lysine
- D. Lysine, arginine and histidine Discuss
- 6. Chronic granulomatous disease results from a failure to perform oxidative burst. This deficiency would be most likely to interfere with
Options- A. CTL killing of viruses
- B. dendritic cell activation to become a mature APC
- C. infected cell processing of virus peptides
- D. macrophage intracellular killing of bacteria Discuss
- 7. What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located?
Options- A. Insulin; many different cell types that use glucose for fuel
- B. Insulin; beta cells of the pancreas
- C. PDGF; the blood
- D. NGF; the nerves involved in simple reflexes Discuss
- 8. In DNA double helix, the two DNA chains are held together by
Options- A. covalent bonds between the pair of bases
- B. hydrogen bonds between the pair of bases
- C. ionic bonds between the pair of bases
- D. none of the above Discuss
- 9. A human cDNA library
Options- A. contains DNA for specific human proteins
- B. contains DNA for virtually all of the human proteins in vectors
- C. cannot be used to obtain human genes because it would be radioactive
- D. none of the above Discuss
- 10. Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?
Options- A. Because other body tissues use a different signaling molecule
- B. Because nitric oxide cannot cross cell membranes and enter the blood
- C. Because nitric oxide breaks down quickly and thus cannot travel far
- D. None of the above Discuss
More questions
Correct Answer: can't synthesize these compounds at all
Correct Answer: All wells would show uniform over-development due to unbound and excess anti-human Ig enzyme conjugate
Correct Answer: 20 kJ/mol
Correct Answer: nude mouse
Correct Answer: Isoleucine, valine and phenylalanine
Correct Answer: macrophage intracellular killing of bacteria
Correct Answer: Insulin; many different cell types that use glucose for fuel
Correct Answer: hydrogen bonds between the pair of bases
Correct Answer: contains DNA for virtually all of the human proteins in vectors
Correct Answer: Because nitric oxide breaks down quickly and thus cannot travel far
Comments
There are no comments.More in Biochemistry:
Programming
Copyright ©CuriousTab. All rights reserved.