Biology Questions Practice Question and Answer
8 Q: What is the osmolarity(in mO smolL–1) in the outer cortex and inner medullary region?
1070 063c8fa49bd6d90332092c5a3
63c8fa49bd6d90332092c5a3- 1300 and 900 respectivelyfalse
- 2600 and 300 respectivelyfalse
- 31200 and 300 respectivelyfalse
- 4300 and 1200 respectivelytrue
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Answer : 4. "300 and 1200 respectively"
Q: Which of the following can degrade detritus into simpler inorganic substances?
1064 064b5267c36fc1bf576512523
64b5267c36fc1bf576512523- 1Algaefalse
- 2Phytoplanktonfalse
- 3Fungal enzymestrue
- 4Lichensfalse
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Answer : 3. "Fungal enzymes"
Explanation :
1. Fungal enzymes decompose simple inorganic substances.
2. Fungi are a type of microorganisms that decompose organic matter.
3. Enzymes break down organic matter into smaller molecules, which can then be used by the body of the fungus.
Q: Which of the following factors is responsible for the disease called 'Mad Hatter's Disease'?
1064 064a2b182d19ae0083334a44d
64a2b182d19ae0083334a44d- 1Inhalation of iron dustfalse
- 2Inhaling silica dustfalse
- 3Mercury poisoningtrue
- 4Vitamin-D deficiencyfalse
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Answer : 3. "Mercury poisoning"
Explanation :
1. Mercury poisoning is responsible for which of the following diseases called 'Mad Hatter's Disease'?
2. Mad Hatter's Disease is a form of mercury poisoning that affects the brain and nervous system.
3. There is a risk of mental and behavioural changes, such as confusion, hallucination, and irritability etc. in this disease.
Q: Which is the smallest bone in the human body?
1061 064b1793ce154aff533669d03
64b1793ce154aff533669d03- 1Stapestrue
- 2Phalangesfalse
- 3Humerusfalse
- 4Pelvisfalse
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Answer : 1. "Stapes"
Explanation :
1. The smallest bone in the human body is the stapes.
2. This bone is located in the middle ear.
3. The length of the stapes is about 3 millimeters.
Q: Which group of animals are named because of their spiny skin and a peculiar water-driven tube system that they use for moving around?
1054 064b527acefb5ba16688217c6
64b527acefb5ba16688217c6- 1Hemichordatafalse
- 2Aschelminthesfalse
- 3Echinodermatatrue
- 4Molluscafalse
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Answer : 3. "Echinodermata "
Explanation :
1. All the creatures of Echinodermata phylum are marine and have thorny bodies.
2. There is a mass flow system in their body.
3. A specific water-conveying canal system is found, which helps in their movement.
Q: Which of the following does NOT belong to Arthropoda group of animal kingdom?
1051 06419714dfb0ff69a8ee7f4cf
6419714dfb0ff69a8ee7f4cf- 1Butterflyfalse
- 2Cockroachfalse
- 3Octopustrue
- 4Spiderfalse
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Answer : 3. "Octopus "
Q: Muscles get tired when there is shortfall of ___________.
1049 062e8e704ceafbe581b6fdadb
62e8e704ceafbe581b6fdadb- 1Lactic acidfalse
- 2Na+ ionsfalse
- 3ATPtrue
- 4Sulphatesfalse
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Answer : 3. "ATP"
Q: Which of the following is a correct match?
1039 063cfc2cb0d9e560db8e69d3f
63cfc2cb0d9e560db8e69d3f- 1Down's syndrome - 21st chromosometrue
- 2Sickle-cell anaemia - X-chromosomefalse
- 3Haemophilia - Y- chromosomefalse
- 4Parkinson's - X and Y-chromosomefalse
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