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ch5112

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  1. Can anyone help me with answering these questions? I have mid-semester exam coming up and there are no answers provided for these practice exam.. Q1.An obsessive water drinker ingests approximately 10 litres of water within a day. Select whether each of the following would increase, decrease or not change with the ingestion of 10 litres of water within a day. (i) ECF Osmolarity. (ii) Mean Arterial Pressure. (iii) Vasopressin release from pituitary. (iv) Water reabsorption in the kidney (v) Renin release from granular cells (vi) Angiotensin II levels (vii)Aldosterone levels (viii) Sodium reabsorption in the kidney Q2. In a normal kidney, glomerular filtration rate would decrease in all of the following conditions EXCEPT FOR: (a)An increase in the Bowman's capsule hydrostatic pressure (b)A decrease in the mean arterial pressure from 85mmHg to 60mmHg ©A decrease in Bowman's capsule oncotic pressure (d)A decrease in plasma hydrostatic pressure (e)An increase in plasma oncotic pressure I think correct answer is (a) since the pressure can't be altered in bowman's capsule? Q3.Predict which one of the following people would initially produce the greatest urine volume (a)A person who is given some synthetic Vasopressin which acts in the same manner as the natural hormone (b)A person who drinks 500mL of isotonic sports drink ©A person who drinks 500mL of water (d)A person who eats salty chips and then drinks 500mL of isotonic sports drink (e)A person who eats salty chips and then drinks 500mL of water I think correct answer is ©? Q4. Which of the following statements in regards to glucose reabsorption in the proximal tubule is INCORRECT? (a)Glucose concentration is higher in the tubular lumen than within the cell (b)Glucose concentration is higher in the cell than in the interstitial cell ©Glucose diffuses out of the basolateral side of the cell using the GLUT protein (d)A decrease in the activity of the Na+/K+-ATPase would decrease glucose reabsorption (e)Glucose reabsorption occurs via secondary active transport I think correct answer is (a) Can anyone correct my answers?
  2. Hi I was going through my past exam paper and it doesn't provide answers for it... I wrote down the answers for every questions. Can you please check whether i am right or not please? Q1. Predict which one of the following people would initially produce the greatest urine volume? a.A person who is given some synthetic Vasopressin which acts in the same manner as the natural hormone b.A person who drinks 500mL of isotonic sports drink c.A person who drinks 500mL of water d.A person who eats salty chips and then drinks 500mL of isotonic sports drink e.A person who eats salty chips and then drinks 500mL of water For this question, I think correct answer should be ©....? Q2. In a normal kidney, glomerular filtration rate would decrease in all of the following conditions EXCEPT FOR: a.An increase in the Bowman's capsule hydrostatic pressure b.A decrease in the mean arterial pressure from 85mmHg to 60mmHg c.A decrease in Bowman's capsule oncotic pressure d.A decrease in plasma hydrostatic pressure e.An increase in plasma oncotic pressure I think correct answer for this is (a) because, hydrostatic pressure should be proportional to GFR. Thus, if there is an increase in the bowman's capsule hydrostatic pressure then GFR should increase too? Q3. Which of the following statements in regards to glucose reabsorption in the proximal tubule is INCORRECT? a.Glucose concentration is higher in the tubular lumen than within the cell b.Glucose concentration is higher in the cell than in the interstitial cell c.Glucose diffuses out of the basolateral side of the cell using the GLUT protein d.A decrease in the activity of the Na+/K+-ATPase would decrease glucose reabsorption e.Glucose reabsorption occurs via secondary active transport
  3. Hi I'm trying to answer these multiple questions from past exam paper. Can anyone help please? there is no answer provided Q1. Predict which one of the following people would initially produce the greatest urine volume? a.A person who is given some synthetic Vasopressin which acts in the same manner as the natural hormone b.A person who drinks 500mL of isotonic sports drink c.A person who drinks 500mL of water d.A person who eats salty chips and then drinks 500mL of isotonic sports drink e.A person who eats salty chips and then drinks 500mL of water For this question, I think correct answer should be (d)....? Q2. In a normal kidney, glomerular filtration rate would decrease in all of the following conditions EXCEPT FOR: a.An increase in the Bowman's capsule hydrostatic pressure b.A decrease in the mean arterial pressure from 85mmHg to 60mmHg c.A decrease in Bowman's capsule oncotic pressure d.A decrease in plasma hydrostatic pressure e.An increase in plasma oncotic pressure I think correct answer for this is (a) because, hydrostatic pressure should be proportional to GFR. Thus, if there is an increase in the bowman's capsule hydrostatic pressure then GFR should increase too? Q3. Which of the following statements in regards to glucose reabsorption in the proximal tubule is INCORRECT? a.Glucose concentration is higher in the tubular lumen than within the cell b.Glucose concentration is higher in the cell than in the interstitial cell c.Glucose diffuses out of the basolateral side of the cell using the GLUT protein d.A decrease in the activity of the Na+/K+-ATPase would decrease glucose reabsorption e.Glucose reabsorption occurs via secondary active transport I think correct answer for this question is: (a). Can anyone correct my answers?
  4. Hi I did some research on google... and treid more. Answers that i got for: Q1-C Q2-E Q4-D Q5-D Are my answers correct??- please correct me! Not really sure about Q3... Hi I did some research on google... and treid more. Answers that i got for: Q1-C Q2-E Q4-D Q5-D(as you suggested) Are my answers correct??- please correct me! Not really sure about Q3...
  5. Hi.. I'm having troubles with answering 5 questions..these were my previous exam question but doesn't have answer.. Can anyone please help? Q1. Which of the following statements about glucose homeostasis is INCORRECT? a)An injection of insulin would be a very, very, very bad treatment choice for a hypoglycaemic puppy b)Adrenaline and glucagon work synergistically to help achieve stable blood glucose c)In situations of extreme fasting, skeletal muscle would be broken down and reformed as glucose under the influence of insulin d)Hormones such as insulin can only influence a tissue or cell that as available the appropriate receptor e)Negative feedback processes are essential for the maintenance of blood glucose levels within a normal range Q2. Contraction of which of the following layers of the intestinal wall will alter the diameter of the lumen of the intestine? a)Submucsal plexus b)Mucosa c)Muscularis mucosae d)Submucosa e)Muscularis externa Q3. Which of the following statements about gastric gland function is INCORRECT? a)There is more than one path by which gastric aid production is stimulated b)No enzymes are produced by the gastric gland, as stomach pH is too acidic to allow protein function c)The gastric gland produces bicarbonate d)In terms of energy expenditure, gastric acid production is an active process e)Both hormones and paracrines are important in controlling gastric gland function Q4. Which of the following is NOT an important function of the stomach? Choose the correct response to this question a)Control of delivery of chyme to the small intestine b)Sterilisation of its contents c)Absorption of food d)Storage of food e)All of A, B, C and D are important functions of the stomach Q5. Which of the following statements about the ‘Intestinal Phase’ of digestion is correct? a)Gastric Inhibitory Peptide (GIP) acts to increase rate of delivery of chyme to the small intestine b)Insulin will be released if the chyme arriving in the small intestine is high in carbohydrates c)The intestinal phase does not begin until the gastric phase has been completed d)Cholecystokinin (CKK) will act to increase liver enzyme secretions e)Bicarbonate that has been produced as a by-product of stomach acid production will be transferred to the small intestine
  6. Hi..I'm trying to go through previous exam questions but can't really find the right answers for questions. Pls help! 1. The brain is located within the skull, and further protected by the meningies and CSF. Which of the following statements about these features of anatomical organisation is correct? a) There is a direct passage(aqueduct) connecting the lateral ventricles to the fourth ventricle-----wrong b) As well carrying oxygenated blood to the brain, the cerebral arteries also resorb CSF from the sub-arachnoid space---wrong? c) the only brain regions that are separated by dura mater are 1: between the dorsal aspect for the two cerebral hemisphere, and 2: between cerebellum and cerebrum d)although the fluid filled ventricles were obvious until the application of microscopes to the study of brain structure e)the skull provides mechanical protection for the brain and also prevents the intracranial presusre from rising if there is an increase in intra-cranial volume. My answer for this question is e)...is this right??
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