Description : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood flow `//` GFR can activate JG cells to release re
Last Answer : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood ... . D. If both Assertion & Reason are false.
Description : A fall in glomerular filtration rate (GFR) activates (a) juxtaglomerular cells to release renin (b) adrenal cortex to release aldosterone (c) adrenal medulla to release adrenaline (d) posterior pituitary to release vasopressin.
Last Answer : (a) juxtaglomerular cells to release renin
Description : A fall in glomerular filtration rate (GFR) activates
Last Answer : A fall in glomerular filtration rate (GFR) activates A. adrenal medulla ot release adrenaline ... renin D. adrenal cortex to release aldosterone
Last Answer : A fall in glomerular filtration rate (GFR) activates A. Juxtaglomerular cells to release ... adrenaline D. Posterior pituitary to release vasopressin
Description : Fall of GFR activate JG cells to release renin which converts angiotensinogen into____. Angiotensinogen-II is a powerfull_____. Causes increase in glo
Last Answer : Fall of GFR activate JG cells to release renin which converts angiotensinogen into____. ... glomerular blood pressure. Causes increase in_____.
Description : A fall in GFR can activate the juxta glomerular cells to release_____
Last Answer : A fall in GFR can activate the juxta glomerular cells to release_____
Description : Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin. Reason `:-` Angiotensin I is a powerful vaso c
Last Answer : Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin. ... . D. If both Assertion & Reason are false.
Description : The polysaccharide used in assessing the glomerular fittration rate (GFR) is (A) Glycogen (B) Agar (C) Inulin (D) Hyaluronic acid CARBOHYDRATES AND CARBOHYDRATE METABOLISM 7
Last Answer : C
Description : Read the following points `:-` (i) Increase GFR (ii) Increase B.P. (iii) Decreases blood volume (iv) Increases aldosterone secretion (v) Vasoconstrict
Last Answer : Read the following points `:-` (i) Increase GFR (ii) Increase B.P. (iii) Decreases blood volume (iv) ... II ? A. Two B. Three C. Four D. Five
Description : Angiotensinogen is a protein produced and secreted by (a) juxtaglomerular (JG) cells (b) macula densa cells (c) endothelial cells (cells lining the blood vessels) (d) liver cells.
Last Answer : d) liver cells.
Description : The primary mechanism by which antidiuretic hormone reduces urine volume is: A. Decrease in glomerular filtration rate B. Decreased renal blood flow C. Decreased water permeability of descending limb of loop of Henle D. Increased water permeability of collecting duct cells
Last Answer : D. Increased water permeability of collecting duct cells
Description : Which one of the following statements is correct with respect to kidney function regulation? (a) When someone drinks lot of water, ADH release is suppressed. (b) Exposure to cold temperature ... During summer when body loses lot of water by evaporation, the release of ADH is suppressed.
Last Answer : (a) When someone drinks lot of water, ADH release is suppressed.
Description : In which the following condition can activate the JG cells to release renin `:-`
Last Answer : In which the following condition can activate the JG cells to release renin `:-` A. More `Na^(+ ... C. High glomerular blood pressure D. Fall in GFR
Description : 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 ... Atrial natriuretic factor causes vasoconstriction. (d) Decrease in secretion of renin by JG cells. (NEE
Last Answer : (b) Reabsorption of Na+ and water from renal tubules due to aldosterone.
Description : If the GFR is 125 mL/min and the renal plasma flow is 700 mL/min, the filtration fraction is
Last Answer : If the GFR is 125 mL/min and the renal plasma flow is 700 mL/min, the filtration fraction is A. About 6% B. About 18% C. About 12% D. About 24%
Description : Enhancer elements have all the following features except (A) They increase gene expression through a promoter (B) Each enhancer activates a specific promoter (C) They may be located far away from the promoter (D) They may be upstream or downstream from the promoter
Last Answer : Answer : B
Description : Match the items given in column I with those in column II and select the correct option given below. Column I Column II A. Glycosuria (i) Accumulation of uric acid in joints B. Gout (ii) Mass of crystallised salts within the kidney ... (iii) (iv) (c) (ii) (iii) (i) (iv) (d) (iv) (i) (ii) (iii)
Last Answer : (d) (iv) (i) (ii) (iii)
Description : Choose the correct statement about sumatriptan: A. It activates serotonergic neurones in raphe nuclei B. It tends to suppress both pain and vomiting in migraine C. It does not carry risk of precipitating coronary vasospasm D. It is combined with ergotamine for treatment of severe migraine
Last Answer : B. It tends to suppress both pain and vomiting in migraine
Description : Measurement of inulin renal clearance is a measure for (A) Effective renal blood flow (B) Renal drug excretion rate (C) Active renal secretion (D) Glomerular filtration rate
Last Answer : (D) Glomerular filtration rate
Description : You find a herbaceous flowering plant growing in your school garden having leaves with parallel venation. Choose the correct additional features the given plant would be possessing. (I) It has no secondary vascular tissues. (II) Its flower ... (2) (I) and (III) (3) (II) and (IV) (4) (III) and (IV)
Last Answer : 1) (I) and (II)
Description : Assertion `:-` Angiotensin II, activates the adrenall cortex to release aldosterone. Reason `:-` Aldosterone causes reabsorption of `Na^(o+)` and wate
Last Answer : Assertion `:-` Angiotensin II, activates the adrenall cortex to release aldosterone. Reason `:-` ... D. If both Assertion & Reason are false.
Description : Glucagon activates the enzyme adenylcyclase which causes the increase of blood sugar level. Hence this hormone is called (A) Hypoglycemic factor (B) Hyper glycemic factor (C) Antidiauritic factor (D) Thyrotropin-releasing factor
Description : Which of the following activates Hageman factor in blood clotting? B A. Kinins B. Negatively charged surfaces C. Complement C5a D. Positively charged collagen
Last Answer : Negatively charged surfaces
Description : Match the items given in column I with those in column II and choose the correct option. Column I Column II A. Rennin (i) Vitamin B12 B. Enterokinase (ii) Facilitated transport C. Oxyntic cells (iii)Milk proteins D. Fructose (iv) ... ii (c) A-iv, B-iii, C-ii, D-i (d) A-iii, B-iv, C-i, D-ii
Last Answer : (d) A-iii, B-iv, C-i, D-ii
Description : Relationship between GFR and seum creatinine concentration is (A) Non-existent (B) Inverse (C) Direct (D) Indirect
Description : All of the following substances have been used to estimate GFR except (A) Inulin (B) Creatinine (C) Phenol red (D) Mannitol FATS AND FATTY ACID METABOLISM 105
Last Answer : Answer : C
Description : Para-amino hippurate excretion test is an indicator of (A) Glomerular filtration (B) Tubular secretion (C) Tubular reabsorption (D) Renal plasma flow
Last Answer : Answer : D
Description : Inulin clearance is a measure of (A) Glomerular filtration rate (B) Tubular secretion flow (C) Tubular reabsorption rate (D) Renal plasma flow
Description : The Tm for PAH i.e the maximal secretory capacity of the tubule for PAH can be used to gavge the (A) Extent of tubular damage FATS AND FATTY ACID METABOLISM 81 (B) Impairment of the capacity of the tubule to perform osmotic work (C) Impairment of renal plasma flow (D) Glomerular filtration rate
Last Answer : Answer : A
Description : Creatinine EDTA clearance is a test to measure (A) Renal plasma flow (B) Filtration fraction (C) Glomerular filtration rate (D) Tubular function
Description : Measurement of insulin clearance test is a measure of (A) Glomerular filtration rate (B) Filtration factor (C) Renal plasma flow (D) Tubular secretory mass
Description : Urea clearance test is used to determine the (A) Glomerular filtration rate (B) Renal plasma flow (C) Ability of kidney to concentrate the urine (D) Measurement of tubular mass
Description : Choose the correct statement about pentazocine: A. It causes bradycardia and fall in blood pressure B. Its subjective effects are pleasurable at low doses but turn unpleasant at high doses C. It induces vomiting frequently D. It substitutes for morphine in dependent subjects
Last Answer : B. Its subjective effects are pleasurable at low doses but turn unpleasant at high doses
Description : The glomerular afferent arteriole has a pressure of
Last Answer : The glomerular afferent arteriole has a pressure of A. `+120` mm Hg B. `-120` mm Hg C. `+95` mm Hg D. `+75` mm Hg.
Description : Glomerular capillaries exhibit higher pressure than that in other body capillary bed because
Last Answer : Glomerular capillaries exhibit higher pressure than that in other body capillary bed because A. There ... high resistance D. All of the above
Description : Which of the following factors is responsible for the formation of concentrated urine? (a) Hydrostatic pressure during glomerular filtration. (b) Low levels of antidiuretic hormone. (c) ... the medullary interstitium in the kidneys. (d) Secretion of erythropoietin by Juxtaglomerular complex.
Last Answer : (c) Maintaining hyperosmolarity towards the medullary interstitium in the kidneys.
Description : Which virus activates and formats computer hard disk on 26th April every year ?
Last Answer : The CIH virus became active and would format the computer hard disk on April 26 of each year.
Description : Conjugation of electron withdrawing groups, e.g., `-CHO`, `-overset(O)overset("|")C-R", "-overset(O)overset(||)C-OR", "-C-=N", "-NO_(2)` activates nuc
Last Answer : Conjugation of electron withdrawing groups, e.g., `-CHO`, `-overset(O)overset("|")C-R", "-overset(O) ... O)overset(||)C-ORgt-overset(O)overset(||)C-R`
Description : Phosphorylated IRS-1 activates GRB-2 which is (A) G-protein receptor binding protein-2 (B) Growth factor receptor binding protein-2 (C) Growth hormone receptor binding protein-2 (D) Glucocorticoid receptor binding protein-2 226 MCQs IN BIOCHEMISTRY
Description : Binding of insulin to its receptor activates (A) Adenylate cyclase (B) Guanylate cyclase (C) Phospholipase C (D) Tyrosine kinase
Description : Binding of thyroxine to its receptors (A) Activates Adenylate cyclase (B) Activates guanylate cyclase (C) Activates a stimulatory G-protein (D) Increases transcription
Description : The ion which activates salivary amylase activity is (A) Chloride (B) Bicarbonate (C) Sodium (D) Potassium
Description : Which of the following statements regarding the alternative complement pathway are true? a. C1, C4 and C2 are involved b. NH3 apparently activates complement via this pathway c. Factors B and D are involved d. Endotoxin activates complement via the alternative pathway
Last Answer : Answer: b, c, d The alternative pathway differs from the classic pathway in that the first steps involving C1, C4 and C2 are bypassed. (See Figure 6-3 previously reproduced.) ... been correlated with impaired renal function and the presence of complement components at the sites of renal injury
Description : Which one of the following drugs is used in the treatment of male impotence and activates prostaglandin E1 receptors? (a) Alprostadil (b) Fluoxetine (c) Mifepristone (d) Sildenafil (e) Zafirlukast
Last Answer : Ans: A
Description : Which one of the following statements about dextromethorphan is accurate? (a) Activates kappa receptors (b) Analgesia equivalent to pentazocine (c) Highly effective antiemetic (d) Less constipation than codeine (e) Use requires a prescription
Last Answer : Ans: D
Description : How an — OH group attached to carbon in the benzene ring activates benzene towards electrophilic substitution ?
Last Answer : The lone pair of electrons present on oxygen atom enter into resonance with the benzene ring. As a result, the electron density becomes higher at o- and p- position and due to higher electron density, the ring gets activated towards electrophilic substitution.
Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? ... brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.
Last Answer : (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla.
Description : Calcium is important in skeletal muscle contraction because it (a) binds to troponin to remove the masking of active sites on actin for myosin (b) activates the myosin ATPase by binding to it ... filament (d) prevents the formation of bonds between the myosin cross bridges and the actin filament.
Last Answer : (a) binds to troponin to remove the masking of active sites on actin for myosin