Biology Questions Practice Question and Answer
8 Q: If the head of cockroach is removed, it may live for few days because :
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63c924c9bdbddb32fda1a10a- 1The supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.false
- 2The cockroach does not have nervous system.false
- 3Head holds a small proportion of nervous system while restis situated along ventral part of its bodyfalse
- 4The head holds 1/3rd of the nervous system while the rest is situated along dorsal part of its body.true
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Answer : 4. "The head holds 1/3rd of the nervous system while the rest is situated along dorsal part of its body."
Q: Consider following features:
(a) Organ system level of organization
(b) Bilateral symmetry
(c) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.
954 063c924581c47ef334be20a45
63c924581c47ef334be20a45(c) True coelomates with segmentation of body
- 1Annelida, Arthropoda and Chordatatrue
- 2Annelida, Arthropoda and Molluscafalse
- 3Arthropoda, Mollusca and Chordatafalse
- 4Annelida, Mollusca and Chordatafalse
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Answer : 1. "Annelida, Arthropoda and Chordata "
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 is true about
Atrial Natriuretic Factor :
1) Peptide hormone 2) Increases blood pressure 3) Reduces blood pressure 4) Vaso constrictor 5) Cause vasodialation
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63c90f95be373f6c954b29ce- 11, 2 and 4 are truefalse
- 21,3 and 5 are truetrue
- 32 and 4 are truefalse
- 45 only is truefalse
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Answer : 2. "1,3 and 5 are true "
Q: A fall in glomerular filtration rate (GFR) activates
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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: What is the osmolarity(in mO smolL–1) in the outer cortex and inner medullary region?
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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 one is the first heart sound?
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63c8f9eb8731ac33279f097b- 1Lub during closure semilunar valvesfalse
- 2Lub during closure of atrio-ventricular valvestrue
- 3Dub during closure of atrio- ventricular valvesfalse
- 4Dub during closure of semilunarvalevesfalse
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Answer : 2. "Lub during closure of atrio-ventricular valves"
Q: Which of the following is not a major component of the food?
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63c7cd998731ac33279b2244- 1Carbohydratesfalse
- 2proteinsfalse
- 3Vitaminstrue
- 4Fatsfalse
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