Keto acids acetyl CoA Krebs cycle acids pyruvic acid The mov

Keto acids. acetyl CoA. Krebs cycle acids pyruvic acid. The movement of water across a plasma membrane occurs by an active transport water pump. a facilitated diffusion carrier. simple diffusion through membrane channels. all of the above are correct. Which of these statements about the facilitated diffusion of glucose is TRUE? There is a net movement of glucose from the region of lower to the region of higher concentration. Carrier proteins in the plasma membrane are required for this transport. This transport requires energy obtained from ATP. It is an example of cotransport. Plasma has an osmolality of about 300 mOsm. The osmolality of isotonic saline is equal to 150 mOsm. 300 mOsm. 600 mOsm. none of the above are correct. The most important diffusible ion in the establishment of the membrane potential is K^+ Na^+ Ca^3 + Cl^- Which of the following statements regarding an increase in blood osmolality is TRUE? It can occur as a result of dehydration. It causes a decrease in blood osmotic pressure. It is accompanied by a decrease in ADH secretion. All of the above are correct. In hyperkalemia, the resting membrane potential moves farther from 0 millivolts. moves closer to 0 millivolts. remains unaffected. Which of these statements about the Na+/K+ pump is TRUE? Na+ is actively transported into the cell. K+ is actively transported out of the cell. An equal number of Na+ and K+ ions are transported with each cycle of the pump.

Solution

Q. N. 28

Answer

Option D, All of the above

Water is driven actively by Cotransporter e.g. Transport of water water by the Na+/glucose cotransporter and K+/Cl-/H2O cotransporter

Water is transported by facilitated diffusion through water-selective channels called aquaporins.

Passive diffusion is a nonselective process by which any molecule able to dissolve in the phospholipid bilayer is able to cross the plasma membrane. Hydrophobic molecules are able to diffuse across a phospholipid bilayer at significant rates and small polar but uncharged molecules such as H20 are able to passively diffuse across the plasma membrane.