biology MCQs – Page 27

Practise multiple-choice questions from biology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

biology Mcqs
521. Spirochete is an example of___________?
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A. Aerobic bacteria

B. Anaerobic bacteria

C. Facultative bacteria

D. Microaerophilic

522. mitochondria in ear lobe cells are nearly____________?
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A. 60

B. 55

C. 40

D. 50
523. Which one of the following specially result in chronic liver disease leading to hepatic failure:
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A. HCV

B. HAV

C. HEV

D. HBV

524. Porifera range in size from__________?
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A. One meter wide to more than millimeter tall.

B. Few decimeter wide to more than one meter tall

C. Few centimeter wide to more than one meter tall

D. Few millimeter wide to more than one meter tall
525. A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is__________?
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A. Pyrosis

B. Pyrolysis

C. Dyspepsia

D. Peristalsis

526. Which of the following structure is not present in all the bacteria_____________?
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A. Capsule

B. Ribosomes

C. Chromatin bodies

D. Cell membrane

527. All of the following are coelomates except:____________?
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A. Deuterosomes

B. Aschelminthes

C. Hemichordates

D. Proterosomes

528. __________ are believed to have common origin with annelids.
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A. Nematods

B. Arthropods

C. None of these

D. Molluscs

529. Penicillium reproduce via___________?
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A. Budding

B. Conidia

C. Spores

D. Fragmentation

530. The word Archaeobacteria (a division of bacteria) derived from Greek means___________?
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A. False bacteria

B. Recent bacteria

C. Ancient bacteria

D. True bacteria

531. Purple non-sulphur bacteria is an example of___________?
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A. Saprotrophic bacteria

B. Chemosynthetic bacteria

C. Photosynthetic bacteria

D. Heterotrophic bacteria

532. One of the commonest cause of food poisoning are the toxins produced by__________?
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A. Campylobacter

B. Azobacter

C. Nitrosomonas

D. Nitrobacter

533. Which of the following group represent pathological fungi______________?
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A. All of these

B. Rusts smuts and molds

C. Mushrooms morels and truffles

D. Penicillium

534. The first bacterium isolated was_________________?
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A. Coccus

B. Spirochete

C. Vibrio

D. Bacillus
535. Pin warm is common name used for__________?
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A. Rhabditis

B. Taenia solium

C. Ancylostoma duodenale

D. Enterobius vermicularis
536. Which system is present in nematodes?
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A. Tube like digestive system

B. Respiratory system

C. Circulatory system

D. Sac like digestive system

537. Fungi can tolerate pH from____________?
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A. 6-Mar

B. 7-Mar

C. 6-Feb

D. 2-9
538. mitochondria in heart muscles are nearly_____________?
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A. 400

B. 325

C. 375

D. 350
539. Flagella originate from_______________?
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A. Basal body

B. Capsule

C. Cell wall

D. Cell membrane

540. According to two kingdom classification fungi were placed in kingdom___________?
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A. Plantae

B. Animalia

C. Fungi

D. Protista