(a) Uric acid is starting material for biosynthesis of urea (b) Urea is synthesized inside lysosomes (c) Urea cycle enzyme are located inside mitochondria (d) Urea is synthesized in kidney EXPLANATION:(c) (27)
(a) Malleus (b) Incus (c) Stapes (d) Auditory EXPLANATION:C (12)
(a) Muscles (b) Sensory nerves (c) Otoconia over the sensory hairs (d) Sensory hairs among them to stimulate the sensory nerves EXPLANATION:D (23)
(a) Bowman’s capsule – Glomerular filteration (b) PCT-Absorption of Na+and K+ (c) DCT -Absorption of glucose (d) None of these EXPLANATION:(c) Distal convoluted tubule is another segment of selective secretion and reabsorption. It helps in regulation of blood pH by …
(a) Placenta (b) Amniotic fluid (c) Allantois (d) Ureter EXPLANATION:(a) (44)
(a) Medulla (b) Liver (c) Cortex (d) Pelvis EXPLANATION: (c) Outer part of kidney (cortex) is contains malpighian corpuscle, PCT and DCT . (7)
(a) Acid–base balance (b) Osmoregulation (c) Urea synthesis (d) Salt balance EXPLANATION: (c) (7)
(a) 100 cc (b) 200 cc (c) 300 cc (d) None of the above EXPLANATION: (c) A person feel the sensation of micturation when the quantity of urine in the bladder is about 300cc., The average capacity of urinary bladder …
(a) Collecting duct (b) Ureter (c) Renal papilla (d) DCT EXPLANATION: (c) Duct of Bellini opens at the apex of renal pyramid. (18)
(a) Intestine (b) Spleen (c) Kidney (d) Liver EXPLANATION: (d) The process of urea formation operates in mitochondria of Liver cells. (22)
(a) ADH (b) Corticosterone (c) Aldosterone (d) Progesterone EXPLANATION: (c) (6)
(a) Arginine (b) Ornithine (c) Citruline (d) All of the above EXPLANATION: (b) In ornithine arginine or urea cycle, with the help of a number of enzymes and energy …
(a) Parathyroid hormone (b) Androgen (c) Aldosterone (d) Renin EXPLANATION: (d) Renin change plasma protein, called angiotensinogen to a peptide called angiotensin. (10)
(a) Urine (b) Faeces (c) Sweat (d) Vitamins EXPLANATION: (b) The bile contains bile pigments (bilirubin and biliverdin) that are excretory products. These waste products …
ANSWERS: (a) Carotid arch (b) Pulmonary arch (c) Truncus arteriosus (d) Systemic arch EXPLANATION: (b) (23)
ANSWERS: (a) Muscle fibres located in heart (b) Nerve fibres located in cerebrum (c) Connective tissue fibres joining one bone to another bone (d) Sensory fibres extending from retina into optic nerve EXPALANATION: (a) Within the lateral walls of …
ANSWERS: (a) Pulmonary vein (b) Pulmonary artery (c) Renal vein (d) Hepatic portal vein EXPLANATION:(a) The left atrium receives oxygenated blood from the lungs through two parts of pulmonary veins. (21)
ANSWERS:(a) Initiation of heart beat (b) Regulation of heart beat (c) Release of acetylcholine only (d) Release of adrenalin only EXPLANATION: (b) (5)
Dental formula of rabbit is (a) 1023/1023 (b) 3023/3023 (c) 1023/2023 …
ANSWERS: (a) Sinu-auricular node (b) Atrio-ventricular node (c) Sodium ion (d) Purkinje’s fibres EXPLANATION: (a) (5)
In mammals the lower jaw is made up of (a) Dentery (b) Maxilla (c) Premaxilla (d) Palatine EXPLANATION: (a) The …
ANSWERS: (a) The defective and leaking valve (b) The thrombosis in coronary artery (c) Defect in SA node (d) The arterial pulse EXPLANATION:(a) Murmur is abnormal sound caused by the vibration of the valves. (48)
ANSWERS (a) Pushing of venous valves (b) Suction pull (c) Beating of S.A. node (d) Pressure between post caval and atrium EXPLANATION:(d) This pressure gradient is generated by the diastole of heart. (3)
ANSWERS: (a) Arteries are contracting during systole (b) Blood is pumped with a pressure in the arteries by the heart during systole but not during diastole. (c) Arteries resist during systole only. (d) Volume of blood is higher in systole …
ANSWERS:(a) Cholinergic (b) Adrenergic ( C) Neurogenic (d) Myogenic EXPLANATION:(d) Myogenic heart has contraction initiated by a special node of modified heart muscles called sinu-artial node (S.A node) e.g., the heart of vertebrates, tunicates and …
ANSWERS: (a) Membranous (b) Muscular (c) Tendinous (d) Ligamentous EXPLANATION:(a) (45)
ANSWERS: (a) 60-70 times (b) 70-80 times (c) 80-90 times (d) 85-95 times EXPLANATION: (b) (19)
ANSWERS:(a) Hiss (b) Loewis (c) Ringer (d) William Harvey EXPLANATION:(b) (11)
ANSWERS: (a) Left auricle and left ventricle (b) Post caval and right caval (c) Right auricle and left auricle (d) Right ventricle and pulmonary aorta EXPLANATION: (a) The bicuspid valve is a valve consisting of two membranous flap or cups …
ANSWER :(a) Heart beat will increase (b) Heart beat will decrease (c) Heart beat will stop (d) No effect EXPLANATION: (c) Because excess of Ca++ will increase the force of contraction, thereby causing spasm of cardiac muscles. (15)
ANSWERS:(a) ‘Lubb’ sound at the end of systole (b) ‘Dub’ sound at the end of systole (c) ‘Lubb’ sound at the beginning of systole (d) ‘Dub’ sound at the beginning of systole EXPLANATION: (c) (8)
ANSWERS: (a) Lymph node (b) Atrio-ventricular node (c) Pacemaker (d) Bulbus arteriosus EXPLANATION:(c) Also called sino–atrial (S.A.) node. (32)
ANSWERS: (a) The two ventricles together in humans (b) The heart that contracts under stimulation from nervous system (c) Left auricle and left ventricle in higher vertebrates (d) Entire heart in lower vertebrates EXPLANATION: (c) (13)
answers:(a) RBC per ml of blood (b) Haemoglobin per ml of blood (c) Oxygen per ml of blood (d) Nutrient per ml of blood EXPLANATION: (c) (17)
ANSWERS: (a) Germany (b) Italy (c) Australia (d) Austria EXPLANATION:(b) The composite structure of Bowman’s capsule and glomerulus in knows as malpighian body or malpighian corpuscles after the italian microscopist Marcello Malpighi. (14)
ANSWERS: (a) Sweat glands (b) Sebaceous glands (c) Hair follicles (d) Hair cells EXPLANATION:(a) (14)
ANSWERS: (a) Deamination (b) Entropy (c) Anuria (d) None of these EXPLANATION:(c) The condition in which kidney failed to form urine is called anuria. (49)
ANSWERS: (a) Malpighian capsule (b) Bowman’s capsule (c) Glomerulus (d) Collecting tubule EXPLANATION: (a) Filtration takes place through semipermeable walls of glomerulus and Bowman’s capsule. Glomerulus and Bowman’s capsule are collectively called malpighian corpuscle. (6)
ANSWERS: (a) Tea (b) Coffee (c) Alcohol (d) All the above EXPLANATION:(d) Diuretic are those substances which increases the output of urine. (18)
ANSWERS: (a) Urates, glucose and water only (b) Ammonia, urea, uric acid and proteins (c) Urea, sugar, water and ammonia (d) Urea, glucose, salts, amino acids and water EXPLANATION: (d) The glomerular filtrate contains a large amount of water and …