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- What type of transport is moving Na+ ions across the basolateral membrane of a distal tubule cell? O Simple diffusion O Facilitated diffusion O Primary active transport O Secondary active transport O None. Na+ does not cross the basolateral membraneA solution of water and dissolved ions is separated by a selectively permeable membrane that allows the passage of water but not small ions. The concentration of sodium is higher on one side of the membrane than onthe other side. However, there is no net movement of water across the membrane. How is this possible?20. Active transport of a substanceacross a membrane requires A A gradientB the expenditure of ATPCwaterD diffusion
- true or false selectively permeable membrane allwo only certian materials to pass throught themThe abundant intercellular connections gab junction can be found in O diaphragm O Heart muscle O Skeletal muscle O Smooth muscleIn muscle, calcium moves from the cytoplasm to the sarcoplasmic reticulum by O active transport, ion channels using diffusion, pumps O diffusion, ion channels active transport, pumps
- Describe the plasma membrane calcium pumpWhen blood glucose level rises, the pancreas secretes insulin, and as a result blood glucose level declines. When blood glucose level is low, the pancreas secretes glucagon, and as a result blood glucose level rises. Such regulation of blood glucose level is the result of A reproduction thermal regulation community homeostasis 2,279 12 tv N MacBook Air DII DD F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F1 @ %23 24 2 6. %3D * CODefine syndesmosis; pl. syndesmoses
- What process best characterizes Ca2+ movement from the cytosol (low Ca2+ concentration) into the endoplasmic reticulum (high Ca2+ concentration)? O Calcium movement is spontaneous O Calcium movement involves active transport O Calcium movement occurs by facilitated diffusion using a transporter protein O Calcium movement does not require energy O Calcium movement occurs by passive diffusion AGiven a selectively permeable membrane that is permeableto water but not to a particular solute and given that thereare different solute concentrations on the two sides of themembrane, show the direction of water movement and labelthe side with the higher osmotic pressure.Solution A is hyperosmotic to solution B. If solution A is separatedfrom solution B by a selectively permeable membrane, does watermove from solution A into solution B, or vice versa? Explain
