Biology Practice Question and Answer
8 Q: What is the effect of Oxytocin produced by hypothalamus?
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63c910141c47ef334be1af4e- 1Stimulates the synthesis and secretion of androgensfalse
- 2Stimulates formation of milk in mammary glandsfalse
- 3Stimulates a vigorous myometrial contraction at the time of childbirthtrue
- 4Stimulates synthesis of carbohydrates from non-carbohydrates in liverfalse
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Answer : 3. "Stimulates a vigorous myometrial contraction at the time of childbirth"
Q: Which of the following body parts is directly affected in the disease called rickets?
413 064a2b07346047484bc8da336
64a2b07346047484bc8da336- 1Eyesfalse
- 2Tonguefalse
- 3Spleenfalse
- 4Bonestrue
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Answer : 4. "Bones"
Explanation :
1. Rickets is a bone disease caused by vitamin D deficiency.
2. Due to rickets, the absorption of calcium and phosphorus in the bones decreases.
3. The solution to protect exclusively breastfed babies from this disease is Vitamin D supplements.
Q: The hard chewing surface of the teeth is____
410 063c7cc6abdbddb32fd9d4eae
63c7cc6abdbddb32fd9d4eae- 1Enameltrue
- 2Tonguefalse
- 3Frenulumfalse
- 4Papillaefalse
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Answer : 1. "Enamel "
Q: The term 'mitochondria' was coined by:
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6329b1495c208a6bf7dd9415- 1Carl Bendatrue
- 2J E Salkfalse
- 3Antonie van Leeuwenhoekfalse
- 4Charles Laveranfalse
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Answer : 1. "Carl Benda"
Q: What is a diphyodont type of dentition?
405 063c7b9221e8e3f3e1a35d1e2
63c7b9221e8e3f3e1a35d1e2- 1Two types of teeth onlyfalse
- 2Two phase of gums and teethfalse
- 3Three types of teethfalse
- 4Two sets of teeth during lifetrue
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Answer : 4. "Two sets of teeth during life"
Q: What is digestion?
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63c7ab778731ac33279ac058- 1Conversion of complex bio-macromolecules to simple absorbable formstrue
- 2Conversion of complex biomolecules to a simple formfalse
- 3Conversion of complex bio-macromolecules to a simple formfalse
- 4Conversion of simple biomolecules to complex formfalse
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Answer : 1. "Conversion of complex bio-macromolecules to simple absorbable forms"
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?
400 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: What is the osmolarity(in mO smolL–1) in the outer cortex and inner medullary region?
399 063c8fa49bd6d90332092c5a3
63c8fa49bd6d90332092c5a3- 1300 and 900 respectivelyfalse
- 2600 and 300 respectivelyfalse
- 31200 and 300 respectivelyfalse
- 4300 and 1200 respectivelytrue
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