Biology Practice Question and Answer
8 4 Q:
6045f5590cd999184cd8f575 4 Q:
5f72f7812d9d25248e05021e 4 Q:
63c8fb241c47ef334be161f8 4 Q:
5f72e88941eb2f391f2cbc75 4 Q:
5f72f4b8a921aa16e6828c40 4 Q:
603633ee9792c13b2854c19c 4 Q:
64c396e0a4dbfb486bcf64f8 Answer : 4. "iris"
4 Q:
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Q: _________ cells have the most abundant molecules, which are 70 percent or more of the total cell mass.
1189 06045f5590cd999184cd8f575
6045f5590cd999184cd8f575- 1Nucleic acidfalse
- 2Lipidsfalse
- 3Proteinfalse
- 4Watertrue
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Answer : 4. "Water"
Q: In humans, kidney is part of a system which is related
1187 05f72f7812d9d25248e05021e
5f72f7812d9d25248e05021e- 1Breathfalse
- 2Transportfalse
- 3Emissionstrue
- 4Nutritionfalse
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Answer : 3. "Emissions"
Q: A fall in glomerular filtration rate (GFR) activates
1186 063c8fb241c47ef334be161f8
63c8fb241c47ef334be161f8- 1Juxta glomerular cells to release renintrue
- 2Adrenal cortex to release aldosteronefalse
- 3Adrenal medulla to release adrenalinefalse
- 4Posterior pituitary to release vasopressinfalse
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Answer : 1. "Juxta glomerular cells to release renin"
Q: Conversion of light energy into chemical energy is as follows
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5f72e88941eb2f391f2cbc75- 1By electrolysisfalse
- 2By photosynthesistrue
- 3By respirationfalse
- 4By Emissionfalse
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Answer : 2. "By photosynthesis"
Q: Xylem is responsible in plant-
1183 05f72f4b8a921aa16e6828c40
5f72f4b8a921aa16e6828c40- 1Carrying watertrue
- 2Carrying foodfalse
- 3Carrying of amino acidsfalse
- 4carry oxygenfalse
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Answer : 1. "Carrying water"
Q: Polio disease is caused by?
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603633ee9792c13b2854c19c- 1Bacteriafalse
- 2Protozoafalse
- 3Virustrue
- 4None of thesefalse
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Answer : 3. "Virus"
Q: The size of the pupil of the eye is controlled by the ______.
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64c396e0a4dbfb486bcf64f8- 1blind spotfalse
- 2retinafalse
- 3corneafalse
- 4iristrue
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Answer : 4. "iris"
Explanation :
1. The iris controls the amount of light entering the eye.
2. Iris is the colored part of the eye, which provides pigment to the eyes.
3. It is attached to the ciliary muscle, which contracts and expands to accommodate the required amount of light.
Q: Refrigeration is the process, due to which
1174 060ba061241fbe0438167bcb6
60ba061241fbe0438167bcb6- 1Bacterias are killedfalse
- 2Decreases the growth of bacteriafalse
- 3Efficiency of bacterial is restrainedtrue
- 4Bacteria are converted into plasmafalse
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Answer : 3. "Efficiency of bacterial is restrained"
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