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- Question
The simplest way to differentiate a prokaryotic cell from a eukaryotic one is to
Options- A. look for a plasma membrane
- B. see if a nucleus is present
- C. check for the presence of DNA
- D. determine if the cell is an entire organism or not
- Correct Answer
- see if a nucleus is present
- 1. If the Standard Gibb's free energy, ?G°, for a reaction is positive then
Options- A. the products will be favored
- B. the reactants will be favored
- C. the concentration of the reactants and products will be equal
- D. all of the reactant will be converted to product Discuss
- 2. 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 Discuss
- 3. The molecular formula for glycine is C2H5O2N. What would be the molecular formula for a linear oligomer made by linking ten glycine molecules together by condensation synthesis?
Options- A. C20H50O20N10
- B. C20H32O11N10
- C. C20H40O10N10
- D. C20H68O29N10 Discuss
- 4. Manganese is a key component of all of the following enzymes except
Options- A. arginase
- B. pyruvate carboxylase
- C. ceruloplasmin
- D. Mn-superoxide dismutase Discuss
- 5. Sample retention in the column is measured by
Options- A. retention time
- B. retention factor
- C. retention index
- D. all of these Discuss
- 6. Proteins are separated in an SDS-PAGE experiment on the basis of their
Options- A. positively charged side chains
- B. molecular weight
- C. negatively charged side chains
- D. different isoelectric points Discuss
- 7. A pathogen can be a (n)
Options- A. agent that causes a disease
- B. virus
- C. bacteria
- D. All of these Discuss
- 8. Which of the following characteristics are common in lymphocytes, macrophages, and neutrophils?
Options- A. They are all part of the nonspecific immune response in vertebrates
- B. They are all part of the specific immune response in vertebrates
- C. They are all part of the internal defenses of nonvertebrates
- D. They are all types of white blood cells Discuss
- 9. The general expression for the appearance of a solute in an effluent is (where V is the elution volume of a substance , V0 void volume, kD distribution constant and Vi internal water volume)
Options- A. V = V0 + kDVi
- B. V = V0/Vi
- C. V = V0 - kDVi
- D. V/V0 = kDVi Discuss
- 10. An expression vector
Options- A. always contains an origin of replication
- B. usually contains a gene that confers antibiotic resistance to the bacterial host
- C. always contains DNA segments for the regulation of mRNA production
- D. all of the above Discuss
More questions
Correct Answer: the reactants will be favored
Correct Answer: Mitochondria
Correct Answer: C20H32O11N10
Correct Answer: ceruloplasmin
Correct Answer: all of these
Correct Answer: molecular weight
Correct Answer: All of these
Correct Answer: They are all types of white blood cells
Correct Answer: V = V0 + kDVi
Correct Answer: all of the above
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