Acellular Life Mdcat Mcqs




MCQs

1. Acellular life forms are characterized by:
A. Presence of nucleus
B. Absence of cellular organization
C. Ability to reproduce independently
D. Presence of cytoplasm

Answer: B


2. Viruses are considered non-living because they:
A. Contain DNA or RNA
B. Can mutate
C. Lack metabolic machinery
D. Have protein coat

Answer: C


3. The protein coat of a virus is called:
A. Envelope
B. Capsid
C. Nucleoid
D. Plasma membrane

Answer: B


4. Which of the following contains only RNA and no protein coat?
A. Virus
B. Bacteria
C. Viroid
D. Prion

Answer: C


5. Prions are made up of:
A. DNA only
B. RNA only
C. Protein only
D. Lipids

Answer: C


6. Which of the following diseases is caused by prions?
A. AIDS
B. Tuberculosis
C. Mad cow disease
D. Influenza

Answer: C


7. Viruses replicate only inside:
A. Soil
B. Water
C. Host cell
D. Air

Answer: C


8. The genetic material in viruses can be:
A. Only DNA
B. Only RNA
C. Both DNA and RNA (but not together)
D. Neither DNA nor RNA

Answer: C


9. Which structure helps a virus attach to the host cell?
A. Ribosome
B. Flagella
C. Surface proteins/spikes
D. Capsule

Answer: C


10. Bacteriophages infect:
A. Plants
B. Animals
C. Bacteria
D. Fungi

Answer: C




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