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- Question
Which of the following statements about aldosterone is NOT correct?
Options- A. Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule.
- B. Aldosterone is produced in the adrenal cortex.
- C. Aldosterone is stimulated by decreased plasma sodium levels and increased plasma potassium levels.
- D. All of the above
- Correct Answer
- Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule.
ExplanationAldosterone is a steroid hormone that is produced in the adrenal gland. It is useful and more essential for the conservation of sodium content in the kidney, salivary glands, colon and sweat glands.
Here, Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule is the only option that is NOT correct about aldosterone.
- 1. Phosphorescence is a phenomenon associated with which algal division?
Options- A. Dinoflagellates
- B. Brown algae
- C. Red algae
- D. Euglenophytes Discuss
- 2. The organs of the urinary system are
Options- A. Kidney
- B. Urinary bladder
- C. Ureter
- D. All of the above Discuss
- 3. All bones stop growing by the end of adolescence.
Options- A. TRUE
- B. FALSE Discuss
- 4. Which of the following is not true of color blindness?
Options- A. Color blind people learn to rely on shapes, patterns, and positions of signs and signals.
- B. Red-green color blindness is the most common type of color blindness.
- C. A color blind person cannot see any colors.
- D. For some people, it might be difficult to recognize colors of traffic lights and signs. Discuss
- 5. When does DNA replication happen?
Options- A. S - phase
- B. M - Phase
- C. Prophase
- D. Anaphase Discuss
- 6. A lytic infection concludes with the
Options- A. production of a prophage
- B. production of messenger RNA
- C. embedding of viral DNA into the host cell's DNA
- D. bursting of the host cell Discuss
- 7. The renal corpuscle is made up of
Options- A. Bowman's capsule
- B. Glomerulus
- C. Both A & B
- D. None of the above Discuss
- 8. When the diaphragm and external intercostal muscles contract,
Options- A. the volume of the thorax decreases.
- B. the volume of the lungs decreases.
- C. the volume of the thorax increases.
- D. the lungs shrink. Discuss
- 9. Where does protein synthesis take place?
Options- A. Nucleus
- B. Ribosomes
- C. On the cell wall
- D. All of the above Discuss
- 10. What contributes to antigenic shift in influenza viruses?
Options- A. a segmented genome
- B. different virus subtypes
- C. Both A & B
- D. ease of virus transmission Discuss
Biology problems
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Correct Answer: Euglenophytes
Explanation:
Phosphorescence is a phenomenon associated with an algal division called euglenophytes.
Phosphorescence is a phenomenon when an object is capable of releasing photons of light at a longer wavelength in response to absorbing light of a shorter wavelength. The object releasing the light only releases the light after some time has passed since it absorbed the light of a short wavelength.
Euglenophytes are single-celled plant-like protists that have no cell wall.
Correct Answer: All of the above
Correct Answer: FALSE
Explanation:
The given statement "All bones stop growing by the end of adolescence" is a FALSE statement.
Correct Answer: A color blind person cannot see any colors.
Correct Answer: S - phase
Explanation:
DNA is replicated during the S-Phase in the interphase of a cell.
Correct Answer: bursting of the host cell
Correct Answer: Both A & B
Correct Answer: the volume of the thorax increases.
Correct Answer: Ribosomes
Explanation:
Protein synthesis take place in the cytoplasm where ribosomes are located as they are the machinery which are responsible for the protein synthesis.
Correct Answer: a segmented genome
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