biology MCQs – Page 60

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 Review each marked answer and report any item that may be outdated or unclear.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
1181. The light microscope can make the object_________times bigger?
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A. 100 times

B. 10 times

C. 1000 times

D. 10000 times

1182. Many bacteria in our digestive system synthesize vitamins for example vitamin_________?
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A. B2

B. B6

C. B12

D. B1

1183. Empty diatom cells are called___________?
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A. Raphe

B. Valves

C. Frustule

D. Girdles

1184. The uptake of water in plants involves__________?
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A. Active transport

B. Passive transport

C. Both of these

D. None of these

1185. Detachment of myosin head and actin in rigor mortis occurs due to__________?
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A. hyperactivity of mitochondria

B. hypercalcemia

C. autolysis in body

D. stored ATP in body

1186. Water potential of pure water is__________?
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A. negative

B. one

C. zero

D. two

1187. Excessive lactic acid is converted into __________ by liver?
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A. Fructose

B. Sucrose

C. Glucose

D. Glycogen
1188. Human brain contains__________neurons.
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A. 100,000,000,000

B. 10,000,00

C. 1000

D. 100,000,000

1189. The body of ________ is not made of cell.
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A. Algae

B. Bacteria

C. Fungi

D. Viruses

1190. Scolidon or dog fish belong to the group of fishes called__________?
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A. Jawless fishes

B. Bony fishes

C. Running fishes

D. Cartilaginous fishes
1191. Which one of the following vitamin is known as the anti- Sterile factor?
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A. Riboflavin

B. Retinol

C. Ascorbic acid

D. a-tocopherols

1192. Snails belong to_________?
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A. bivalves

B. arthropods

C. gastropods

D. platyhelminthes

1193. which of the following hepatitis is more contagious ?
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A. HCV

B. HBV

C. HAV

D. HDV

1194. Diatoms stay afloat due to___________?
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A. Stored lpids

B. Flagella

C. All of these

D. Pseudopodia

1195. Which of the following are proteins in nature?
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A. Interferons

B. All of these

C. Antibodies.

D. Antitoxins

1196. Liver fluke is parasite in the liver of__________?
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A. all of these

B. goat

C. cattle

D. sheep

1197. Which of the following is true about hearts of earthworm?
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A. They pump blood from ventral to dorsal vessel.

B. There are 5-7 pairs of heart.

C. They are present between 1-7th segments.

D. They are present lateral to the oesophagus.
1198. Lenticels look like__________?
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A. Cars or small protusions

B. A big pore

C. Sponge

D. Stoma

1199. Which of the following treatment will be administered first in a newly diagnosed renal failure patient?
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A. Lithotripsy

B. Renal transplant

C. Peritoneal Dialysis

D. Hemodialysis
1200. Single circuit heart is found in_________?
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A. Fishes

B. Reptiles

C. Amphibians

D. Mammals