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MCQ on NEET for Students
The type of dentition characterized by two sets of teeth i.e. deciduous and permanent teeth :
(A) thecodont
(B) diphyodont
(C) homodont
(D) none of these
Option b – diphyodont
Identify the INCORRECT statement.
(A) Malpighian corpuscle, PCT, and DCT are situated in the medulla region of the kidney.
(B) Efferent arteriole carries blood away from the glomerulus.
(C) In cortical nephrons, the loop of Henle is too short and extends a little into the medulla.
(D) Vasa recta run parallel to Henle’s loop.
Option a – Malpighian corpuscle, PCT, and DCT are situated in the medulla region of the kidney.
Identify the type of blood cells using the following description as clues. i. They are biconcave. ii. They are devoid of nuclei. iii. Their life span is around 120 days.
(A) WBCS
(B) RBCs
(C) Platelets
(D) Agranulocytes
Option b – RBCs
The first step in urine formation is carried out by the
(A) Glomerulus
(B) DCT
(C) PCT
(D) Collecting duct
Option a – Glomerulus
Pick the odd one out with respect to the nature of the blood-given structure carries.
(A) Aorta
(B) Left ventricle
(C) Left atrium
(D) Superior vena cava
Option d – Superior vena cava
Rennin is an enzyme
(A) that activates pepsinogen to pepsin.
(B) which acts on fatty acids to form glycerol.
(C) found in the gastric juice of infants.
(D) which acts as an antibacterial agent.
Option c – found in the gastric juice of infants.
Read the following statements and opt for the correct answer. Statement I: Ammonia is the least toxic form of nitrogenous waste. Statement II: In mammals, ammonia formed during metabolism is converted to urea in the liver.
(A) Statement I is correct and II is incorrect.
(B) Statement I is incorrect and II is correct.
(C) Both Statements I and II are correct.
(D) Both Statements I and II are incorrect.
Option b – Statement I is incorrect and II is correct.
The cardiac output of the heart is
(A) equal to the stroke volume
(B) stroke volume × heart rate
(C) equal to the heart rate
(D) stroke volume minus heart rate
Option b – stroke volume × heart rate
Bile released into the duodenum contains all of these, except
(A) bilirubin.
(B) cholesterol
(C) phospholipids
(D) enzymes
Option d – enzymes
Which of the following possesses a four-chambered heart?
(A) Reptiles and amphibians
(B) Mammals and all reptiles
(C) Birds and mammals
(D) Amphibians and all fishes
Option c – Birds and mammals
The tongue is attached to the floor of the oral cavity by the
(A) frenulum
(B) papillae
(C) colon
(D) villi
Option a – frenulum
Which of the following statement is INCORRECT regarding the human excretory system?
(A) Kidneys are situated between the levels of the last thoracic and third lumbar vertebra.
(B) Ureters, blood vessels, and nerves enter through the hilum.
(C) The outer layer of the kidney is a tough capsule.
(D) The medulla extends in between the pyramids forming columns of Bertini.
Option d – The medulla extends in between the pyramids forming columns of Bertini.
Identify the INCORRECT statement regarding the sino-atrial node.
(A) It maintains the rhythmic contractile activity of the heart.
(B) It can produce 70-75 action potentials per minute.
(C) It is a specialized nodal tissue.
(D) It is found in the lower-left corner of the right atrium.
Option d – It is found in the lower-left corner of the right atrium.
Select the INCORRECT match.
(A) Sub-lingual gland – Below tongue
(B) Parotid gland – Cheek
(C) Sub-mandibular gland – Lower jaw
(D) Sub-maxillary gland – Upper jaw
Option d – Sub-maxillary gland – Upper jaw
Glomerulonephritis is characterized by
(A) the formation of an insoluble mass of oxalates within the kidney.
(B) accumulation of urea in the kidney
(C) swelling of glomeruli of the kidney
(D) narrowing of the lumen of the arteries.
Option c – swelling of glomeruli of the kidney
The bicuspid valve is situated between the opening of
(A) the left atrium and left ventricle
(B) the right atrium and right ventricle
(C) the left atrium and right ventricle
(D) the right atrium and left ventricle
Option a – the left atrium and left ventricle
……… cells of the intestinal mucosal epithelium secrete mucus which helps in lubrication.
(A) Parotid
(B) Goblet
(C) Chief
(D) Oxyntic
Option b – Goblet
Identify the CORRECT match with respect to the mode of excretion in various organisms.
(A) Bony fishes, aquatic amphibians Ureotelism
(B) Terrestrial amphibians, marine fishes Ureotelism
(C) Reptiles, land snails – Ammonotelism
(D) Mammals, birds – Uricotelism
Option b – Terrestrial amphibians, marine fishes Ureotelism
Normal diastolic and systolic blood pressure is …… mm Hg respectively.
(A) 150, 70
(B) 120,90
(C) 80, 120
(D) 40, 190
Option c – 80, 120
The part of the stomach that opens into the duodenum is
(A) fundus
(B) cardiac
(C) pylorus
(D) ileum
Option c – pylorus
Identify the CORRECT statement with respect to the regulation of kidney function.
(A) Angiotensin II is a powerful vasoconstrictor.
(B) The secretion of aldosterone causes a decrease in blood pressure and GFR.
(C) An increase in body fluid volume causes the secretion of ADH.
(D) ADH converts angiotensinogen in blood to angiotensin I and further to angiotensin II.
Option a – Angiotensin II is a powerful vasoconstrictor.
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