Biology problems
- 1. The arbor vitae refers to
Options- A. the pleatlike convolutions of the cerebellum
- B. cerebellar gray matter
- C. flocculonodular nodes
- D. cerebellar white matter Discuss
Correct Answer: cerebellar white matter
- 2. Select the correct statement about the uterine cycle.
Options- A. During the secretory phase, estrogen levels are at their highest.
- B. During the proliferative phase, levels of progesterone rise as the follicle begins to produce more hormone.
- C. If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.
- D. The menstrual phase of the cycle is from day 1 to day 8. Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.
Explanation:
"If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo." is the only correct statement about the uterine cycle among the options.
- 3. What happens at the synapse between two neurons?
Options- A. electrical signals are converted into chemical
- B. chemical signals are converted into physical
- C. physical signals are converted into chemical
- D. None of the above Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: electrical signals are converted into chemical
Explanation:
At the synapse between two neurons, electrical signals are converted into chemical signals. A synapse is the gap between the two neurons.
- 4. The energy in most ecosystems comes from
Options- A. Water
- B. Carbon dioxide
- C. Sun
- D. Soil Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: Sun
Explanation:
The energy in most ecosystems comes from sun light.
- 5. Which of the following cells produce antibodies?
Options- A. Plasma cells
- B. Monocytes
- C. Mast cells
- D. Neutrophils Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Plasma cells
- 6. The external oblique muscle is named due to its
Options- A. Action
- B. Fiber detection
- C. Location
- D. Attachment points Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Fiber detection
- 7. Cholesterol belongs to which class of molecules?
Options- A. Lipids
- B. Carbohydrates
- C. Nucleic acids
- D. Proteins Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: Lipids
Explanation:
Cholesterol belongs to lipids class of molecules. Lipids are sometimes called as fats which act as storing energy and structural components of cell membranes.
- 8. The light reactions of photosynthesis supply the calvin cycle with
Options- A. CO2and ATP
- B. ATP and NADPH
- C. light energy
- D. H2O and NADPH Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: ATP and NADPH
Explanation:
The light reactions of photosynthesis supply the calvin cycle with ATP and NADPH.
- 9. Where would rna polymerase attach?
Options- A. Phosphate groups
- B. DNA
- C. Both A & B
- D. None of the above Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: DNA
Explanation:
RNA polymerase attach to DNA molecule.
- 10. Which membrane is highly convoluted?
Options- A. the chloroplast outer membrane
- B. chloroplast inner membrane
- C. both the mitochondrial and chloroplast outer membranes
- D. mitochondrial inner membrane Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: mitochondrial inner membrane
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