About how many neurons does the human brain contain?
Correct answer B. 100,000,000,000
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Biology MCQs
Page 17 of Biology multiple-choice questions with answers. Tap an option to check yourself.
Page 17 of 75
In which organisms are xylem and phloem found as conducting tissues?
Correct answer C. Plants
Which plant tissue is made up of cells that are dead at maturity?
Correct answer A. Sclerenchyma
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Simple and complex tissues are the two groups of which type of plant tissue?
Correct answer A. Permanent
How many basic types of tissue are found in plants?
Correct answer C. 3
Which gas was discovered by Scheele?
Correct answer A. Chlorine
Which type of endoplasmic reticulum has no ribosomes on its surface?
Correct answer A. Smooth
Which of the following acts as a selectively permeable membrane?
Correct answer A. Cell membrane
By how many times can a light microscope enlarge an object?
Correct answer D. 1000 times
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In which cells is the cell wall the non-living, outermost boundary?
Correct answer D. All the above
Which cell structure is known as the protein-synthesising machine?
Correct answer D. Ribosomes
Which plastid makes carbohydrates by photosynthesis?
Correct answer B. Chloroplast
During cell division, which part of the cell divides first?
Correct answer A. Nucleus
What is the membrane surrounding a vacuole called?
Correct answer C. Tonoplast
In which phase of the cell cycle are cell organelles formed?
Correct answer C. G2 Phase
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Which part of the brain links its two hemispheres?
Correct answer A. Corpus callosum
Which organ is responsible for body metabolism?
Correct answer C. Liver
Which organ filters the blood to remove waste?
Correct answer A. Kidney
Which of these is a set of useful insects?
Correct answer D. Honeybee, lac insect, cochineal insect
To which insect is a moth most closely related?
Correct answer C. Butterfly