What makes up about 95% of the cytoplasm of red blood cells?
Correct answer D. Hemoglobin
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Biology MCQs
Page 56 of Biology multiple-choice questions with answers. Tap an option to check yourself.
Page 56 of 75
How many polypeptide chains make up an antibody molecule?
Correct answer A. 4
Roughly what proportion of the Earth’s surface is covered by water?
Correct answer B. 75%
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At what level does gas exchange occur in birds?
Correct answer A. Parabronchi
Which class of arthropods is found almost everywhere?
Correct answer B. Insecta
Which pigments are red to orange in colour?
Correct answer A. Carotenes
What is Enterobius vermicularis commonly known as?
Correct answer D. Pinworm
From which group are amphibians thought to have evolved?
Correct answer D. Dipnoi
How many spiracles does a cockroach have?
Correct answer D. 20
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Which salivary glands lie in front of the ear?
Correct answer D. Parotid
In the electron transport chain, which carrier oxidises NADH?
Correct answer D. Coenzyme Q
What is the initial pH of the food vacuole in amoeba during digestion?
Correct answer B. 5.6
If bile pigments are prevented from leaving the digestive tract, what condition do they cause?
Correct answer B. Jaundice
Double fertilisation is a characteristic feature of which plants?
Correct answer C. Angiosperms
In which of the following is alternation of generations absent?
Correct answer C. Hydra
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The single functional megaspore retained in the megasporangium germinates to form an egg-containing female gametophyte. What is this called?
Correct answer D. Embryo sac
What do Pinus pollen grains have to help them disperse by wind?
Correct answer C. Wings
Which description fits poxviruses?
Correct answer A. DNA enveloped
What is the destruction of all forms of life called?
Correct answer A. Sterilization
In which group of viruses is reverse transcriptase present?
Correct answer B. All retroviruses