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NEET Biology (Sept)2020 PYQs
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90 questions in NEET (Sept)2020
The process of growth is maximum during:
A
Log phase
B
Lag phase
C
Senescence
D
Dormancy
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Name the plant growth regulator which upon
spraying on sugarcane crop, increases the length
of stem, thus increasing the yield of sugarcane
crop.
A
Cytokinin
B
Gibberellin
C
Ethylene
D
Abscisic acid
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Identify the correct statement with reference to
human digestive system.
A
Ileum opens into small intestine.
B
Serosa is the innermost layer of the
alimentary canal.
C
Ileum is a highly coiled part.
D
Vermiform appendix arises from duodenum.
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The enzyme enterokinase helps in conversion of:
A
protein into polypeptides
B
trypsinogen into trypsin
C
caseinogen into casein
D
pepsinogen into pepsin
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Select the correct events that occur during
inspiration.
A
(A) and (B)
B
(C) and (D)
C
(A), (B) and (D)
D
only (D)
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Identify the wrong statement with reference to
transport of oxygen.
A
Binding of oxygen with haemoglobin is mainly related to partial pressure of O2 .
B
Partial pressure of CO2 can interfere with O2 binding with haemoglobin.
C
Higher H+ conc. in alveoli favours the
formation of oxyhaemoglobin.
D
Low pCO2 in alveoli favours the formation of oxyhaemoglobin.
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Match the following columns and select the
correct option.
Column-I
Column-II
(A)Eosinophils
(I)Immune response
(B)Basophils
(II)Phagocytosis
(C)Neutrophils
(III)Release histaminase, destructive
enzymes
(D)Lymphocytes
(IV)Release granules containing histamine
A
(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
B
(A)-(IV), (B)-(I) (C)-(II), (D)-(III)
C
(A)-(I), (B)-(II, (C)-(IV), (D)-(III)
D
(A)-(II), (B)-(I), (C)-(III), (D)-(IV)
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The QRS complex in a standard ECG represents:
A
Repolarisation of auricles
B
Depolarisation of auricles
C
Depolarisation of ventricles
D
Repolarisation of ventricles
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Presence of which of the following conditions in
urine are indicative of Diabetes Mellitus?
A
Uremia and Ketonuria
B
Uremia and Renal Calculi
C
Ketonuria and Glycosuria
D
Renal calculi and Hyperglycaemia
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Which of the following would help in prevention of
diuresis?
A
More water reabsorption due to undersecretion of ADH
B
Reabsorption of Na+ and water from renal
tubules due to aldosterone
C
Atrial natriuretic factor causes
vasoconstriction
D
Decrease in secretion of renin by JG cells
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