Description : A highly ionised drug: a. is well absorbed from the intestine b. is excreted mainly in the kidney c. crosses the placental barrier easily d. is reabsorbed from the renal tubule
Last Answer : is well absorbed from the intestine
Description : At normal levels of creatinine in the blood, this metabolite is (A) Filtered at the glomerulus but not secreted nor reabsorbed by the tubule (B) Secreted by the tubule (C) Reabsorbed by the tubule (D) Secreted and reabsorbed by tubule
Last Answer : Answer : A
Description : Secretion of K+ in the late distal tubule and collecting ducts of kidney depends on: A. Intracellular K+ content B. Unabsorbed Na+ load presented to the distal segment C. Aldosterone level D. All of the above
Last Answer : D. All of the above
Description : The Na+-Cl– symport in the early distal convoluted tubule of the kidney is inhibited by: A. Thiazides B. Metolazone C. Xipamide D. All of the above
Description : The polysaccharide insulin is (A) Filtered at the glomerulus but neither secreted nor reabsorbed by the tubule (B) Filtered at the glomerulus and secreted by the tubule (C) Filtered at the glomerulus and reabsorbed by the tubule (D) Filtered at the glomerulus, secreted and reabsorbed by the tubule
Description : In a normal nephron: a. the descending loop of Henle is impermeable to water b. anti-diuretic hormone (ADH) increases the permeability of collecting ducts to water c. all the filtered ... in the proximal tubule d. nearly all the filtered protein is reabsorbed in the proximal convoluted tubule
Last Answer : nearly all the filtered protein is reabsorbed in the proximal convoluted tubule
Description : Under normal conditions which one is completely reabsorbed in the renal tubule? (a) Urea (b) Uric acid (c) Salts (d) Glucose
Last Answer : d) Glucose
Description : Which one of the following statements in regard to the excretion by the human kidneys is correct? (a) Descending limb of loop of Henle is impermeable to water. (b) Distal convoluted tubule is ... reabsorbed by the renal tubules. (d) Ascending limb of loop of Henle is impermeable to electrolytes.
Last Answer : (c) Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules.
Description : The maximum amount of electrolytes and water (70 – 80 percent) from the glomerular filtrate is reabsorbed in which part of the nephron? (a) Ascending limb of loop of Henle (b) Distal convoluted tubule (c) Proximal convoluted tubule (d) Descending limb of loop of Henle
Last Answer : (c) Proximal convoluted tubule
Description : The following diuretic acts on the luminal membrane of distal tubule and collecting ducts to inhibit electrogenic Na+ reabsorption so that K+ excretion is diminished and bicarbonate excretion is enhanced: A. Xipamide B. Isosorbide C. Triamterene D. Spironolactone
Last Answer : C. Triamterene
Description : More creatinine is excreted by (A) Adult males (B) Adult females (C) Children (D) Pregnant women
Description : Para amino hippurate is (A) Filtered at glomeruli and secreted by the tubules (B) Filtered at glomeruli and not secreted by the tubules (C) Filtered at glomeruli and reabsorbed completely (D) Not removed completely during a single circulation of the blood through the kidney.
Description : The Na+ retaining action of aldosterone is exerted on the: A. Proximal convoluted tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Distal convoluted tubul
Last Answer : D. Distal convoluted tubule
Description : Rank the following laboratory tests and procedures in terms of their relative value to a 65-year-old woman who is to undergo elective resection of a sigmoid cancer. A. Carcinoembryonic antigen (CEA). B. ... Arterial blood oxygen tension (PaO 2) on room air. G. Serum sodium concentration (Na+).
Last Answer : Answer: CDFEBAG DISCUSSION: The most important test by far is the electrocardiogram, with its capacity to indicate signs of occult heart disease. The second most important evaluation is the hemoglobin ... for resection of the colon is always normal and would be of least value among these tests
Description : Reabsorption of chloride ions from glomerular filtrate in kidney tubule occurs by
Last Answer : Reabsorption of chloride ions from glomerular filtrate in kidney tubule occurs by A. Active transport B. Diffusion C. Osmosis D. Brownian movement
Description : Most drugs are excreted through-------? A. Kidney (Answer) B. Skin C. Gallbladder D. Lungs
Last Answer : A. Kidney (Answer)
Description : Calcium is excreted by (A) Kidney (B) Kidney and intestine (C) Kidney and liver (D) Kidney and pancreas
Last Answer : Answer : B
Description : The following are true about fluorescein sodium: a. it is 60% bound to the plasma protein b. it leaks out of the choriocapillaris readily c. is excreted mainly by the kidney d. it is excited by green light
Last Answer : is excreted mainly by the kidney
Description : Which of the following is applicable to mivacurium: A. It undergoes Hoffmann elimination B. It is the shortest acting nondepolarizing neuromuscular blocker C. It is excreted unchanged by kidney D. It does not cause histamine release
Last Answer : B. It is the shortest acting nondepolarizing neuromuscular blocker
Description : The principal cation of extra cellular fluid: (A) K+ (B) Na+ (C) H+ (D) Ca2+
Description : The most abundant intracellular cation is (a) H+ (b) K+ (c) Na+ (d) Ca++
Last Answer : (b) K+
Description : Amiloride has the following effect on urinary cation excretion: A. Decreases both K+ and H+ ion excretion B. Decreases K+ excretion but increases H+ ion excretion C. Increases K+ but decreases Na+ excretion D. Decreases both Na+ and K+ excretion
Last Answer : A. Decreases both K+ and H+ ion excretion
Description : Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase
Last Answer : B. Electrogenic Na+ channels
Description : Furosemide acts by inhibiting the following in the renal tubular cell: A. Na+-K+-2Cl– cotransporter B. Na+-Cl– symporter C. Na+-H+ antiporter D. Na+ K+ ATPase
Last Answer : A. Na+-K+-2Cl– cotransporter
Description : Which one of the following correctly explains the function of a specific part of the human nephron? (a) Podocytes : create minute spaces (slit pores) for the filtration of blood into the ... blood capillaries (d) Afferent arteriole : carries the blood away from the glomerulus towards renal vein.
Last Answer : (a) Podocytes : create minute spaces (slit pores) for the filtration of blood into the Bowman’s capsule
Description : Sulphur containing amino acids after catabolism produces a substance which is excreted: (A) SO2 (B) HNO3 (C) H2SO4 (D) H3PO4
Last Answer : Answer : C
Description : On average red blood cells live around 120 days. The spleen is the main organ where old red blood cells are destroyed. During the red blood cell destruction the heme groups turn into bilirubin and this substance is then captured by the liver and later excreted in the bowels as part of the bile.
Last Answer : What are the functions of the spleen?
Description : Upon the entry of carbon dioxide in the red blood cells, H+ionsare formed at a very rapid rate, and yet the blood does not turn acid because (a) H+ ions are rapidly exchanged at the ... haemoglobin and plasma (d) H+ ions are buffered by proteins of haemoglobin and proteins and phosphates of plasma
Last Answer : Ans:(c)
Description : Choose the correct statement about thiazide diuretics: A. They act in the proximal convoluted tubule B. They are uricosuric C. They augment corticomedullary osmotic gradient D. They induce diuresis in acidosis as well as alkalosis
Last Answer : D. They induce diuresis in acidosis as well as alkalosis
Description : WHERE DOES GLUCOSE REABSORBED WHICH IS PRESENT IN GLOMULAR FILTRATE -Biology
Last Answer : answer:
Description : Assertion `:-` Nearly 99 percent of the filtrate has to be reabsorbed by the renal tubules. Reason `:-` Glucose is reabsorbed by active mechanism is P
Last Answer : Assertion `:-` Nearly 99 percent of the filtrate has to be reabsorbed by the renal tubules. Reason ` ... . D. If both Assertion & Reason are false.
Description : Assertion `:-` In PCT all of the essential nutrient and 70-80 percent of electrolytes and water are reabsorbed. Reason `:-` PCT is lined by simple cub
Last Answer : Assertion `:-` In PCT all of the essential nutrient and 70-80 percent of electrolytes and water are ... . D. If both Assertion & Reason are false.
Description : The maximum amount of electrolytes and water (70-80 per cent) from the glomerular filtrate is reabsorbed in which part of the nephron?
Last Answer : The maximum amount of electrolytes and water (70-80 per cent) from the glomerular filtrate is ... of loop of Henle D. Distal convoluted tuble
Description : Spermatozoa not ejaculated are reabsorbed I the
Last Answer : Spermatozoa not ejaculated are reabsorbed I the A. Ejaculatory duct B. Urethra C. Vas efferens D. Vas deferens.
Description : What is filtered and both actively reabsorbed and actively secreted?
Last Answer : Need answer
Description : What happens when too little water is reabsorbed back to the body from the large intestine can this be a dangerous condition?
Last Answer : Feel Free to Answer
Description : All the following statements about inulin are correct except (A) It is completely non-toxic (B) It is completely filtered by glomeruli (C) It is not reabsorbed by tubular cells (D) It is secreted by tubular cells
Last Answer : Answer : D
Description : Cerebrospinal fluid: a. is produced mainly by the lateral, third and fourth ventricles b. enters the subarachnoid space through foramina Lushka and Magendie c. is reabsorbed mainly into the lymphatics d. production is dependent of the blood pressure
Last Answer : is produced mainly by the lateral, third and fourth ventricles
Description : The most important reason for the thiazides being only moderately efficacious diuretics is: A. About 9/10th of glomerular filtrate is reabsorbed proximal to their site of action B. Compensatory ... these drugs C. They decrease glomerular filtration D. They have relatively flat dose response curve
Last Answer : A. About 9/10th of glomerular filtrate is reabsorbed proximal to their site of action
Description : More than 90% of bile salts are reabsorbed in (a) Duodenum (b) Ileum (c) Colon (d) None
Last Answer : (b) Ileum
Description : Carrier ions like `Na^(+)` facilitate the absorption of substance like
Last Answer : Carrier ions like `Na^(+)` facilitate the absorption of substance like A. Amino acids and ... acids and glycerol D. Fructose and some amino acids
Description : Al 2 O 3 + 2NaOH → ...... + H 2 O A) Al (OH) 3 B) Na 2 O C) NaAlO 2 D) AlNaO 2
Last Answer : B) Na
Description : If, `H_(2)(g)+Cl_(2)(g)rarr 2HCl(g) , Delta H^(@)=-44` Kcal `2Na(s)+2HCl(g)rarr 2NaCl(s)+H_(2)(g), Delta H=-152` Kcal Then, `Na(s)+0.5Cl_(2)(g)rarr Na
Last Answer : If, `H_(2)(g)+Cl_(2)(g)rarr 2HCl(g) , Delta H^(@)=-44` Kcal `2Na(s)+2HCl(g)rarr 2NaCl(s)+H_(2)( ... ` A. 108 Kcal B. 196 Kcal C. `-98` Kcal D. 54 Kcal
Description : Which of the following is a correct pair according to increasing atomic number from left to right? (1) Ca, Cl (2) Be, B (3) Na, Ne (4) He, H
Last Answer : (2) Be, B Explanation: The correct pair is Be and B. Beryllium (Be) has atomic number of 4, while the atomic number of Boron (2) is 5.
Description : The primary force moving water molecules from the blood plasma to the interstitial fluid is a. active transport b. cotransport with H+ c. facilitated diffusion d. cotransport with Na+ e. filtration
Last Answer : filtration
Description : How could we prevent H+ ions to be discharged first than Na+ during electrolysis of aqueous solution of NaCl?
Last Answer : Ans: This could be prevented by using mercury cathode during this kind of electrolysis, because H+ ions need high voltage to be discharged at mercury cathode. In this way sodium got discharged at cathode despite H+ ions.
Description : The most electropositive element among the following is (a) Na (b) Ca (c) K (d) Cs
Last Answer : Ans:(d)
Description : Consider the following statements: 1. Even when a nerve cell is not conducting an impulse, it is actively transporting K+ and Na+ ions in and out respectively against their concentration gradients at the expense of energy 2. As a ... is/are untrue? (a) 1 only (b) 1, 2, 4 (c) 2, 4 (d) 4 only
Description : Consider the following statements: 1. In a resting neuron, there is difference in electrical charge on either side of surface membrane called potential difference. 2. It is due to unequal distribution of K+ ions and Na+ ions on either side if the ... ? (a) 1 only (b) 1, 2 (c) 1, 2, 3 (d) 1, 2, 3, 4
Last Answer : Ans:(b)