minitest_prac_q_2

minitest_prac_q_2 - 1 Antiporters a Permit the movement of...

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1. Antiporters a. Permit the movement of two molecules in opposite directions across a membrane b. Permit the movement of two molecules in the same direction across a membrane c. Permit the movement of molecules only with their concentration gradients d. Only function through the use of ATP e. Both a and d. 2. Regulation of transporters and channels in the kidney can be done at the level of a. Gene expression b. Protein expression c. Cellular localization d. Activity e. All of the above 3. The major driving force for transport in the nephron is. a. ATP b. The Na + /K + gradient c. The Na + gradient d. Transporter regulation e. Osmolarity 4. The majority of filtrate is reabsorbed by the a. Glomerulus b. Ascending Loop of Henle c. Proximal Tubule d. Distal Convoluted Tubule e. Collecting Duct 5. The Descending Loop of Henle is mainly responsible for the absorption of a. Glucose b. Water c. Urea d. Sodium e. Calcium 6. The membranes in the Ascending Loop of Henle are impermeable to a. Glucose b. Water c. Urea d. Sodium e. Calcium 7. The section(s) of the nephron NOT involved in water reabsorption is(are) a. The Distal Convoluted Tubule b. Ascending loop of Henle c. Proximal Tubule d. Collecting Duct e. Both a and b 8. The section(s) of the nephron with the highest filtrate concentrations is(are) a. The Distal Convoluted Tubule
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b. Ascending loop of Henle c. Proximal Tubule d. Base of Collecting Duct e. Both b and d 9. Which of the following statements about anit-diuretic hormone (ADH) is most accurate a. It is a steroid hormone b. It is a lipophilic molecule c. It’s release is triggered by decreased plasma osmolarity and blood pressure d. It allows for the insertion of aquaporin I into the plasma membrane e. It is produced in the hypothalamus 10. Which of the following compounds are NOT involved in the regulation of sodium balance a. Renin b. Angiotensin c. Alcohol d. Atrial Naturietic Hormon e. Aldosterone
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minitest_prac_q_2 - 1 Antiporters a Permit the movement of...

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