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 Secondary active transport None. Na+ does not cross the basolateral membrane

The net movement of potassium out of a cell (and sodium into a cell) occurs by: secondary active transport simple diffusion facilitated diffusion O primary active transport

How does Na+/K+ ATPase/Pump promote osmosis across plasma membrane? How does it establish the basal metabolic rate? Lastly, what does it mean when the pump self-phosphorylates during transportation?

If a skeletal muscle has depleted its stores of ATP how will the altered transport properties of the following transporters affect cytosolic ion concentrations (increase, decrease, no change) relative to normal?   Skeletal Muscle Cell With Depleted ATP Stores Ion transporter Cytosolic K+ Cytosolic Na+ Cytosolic Ca2+ NKA         NCX         SERCA

compare and contrast the four in tables 1. active and passive transport 2. action membrane potential and resting membrane potential  3. endocrine and exocrine glands

How is osmosis different from simple diffusion? osmosis involves the movement of water, simple diffusion involves the movement of solutes simple diffusion utilizes energy in the form of a solute concentration gradient, osmosis utilizes energy in the form of ATP Osimple diffusion moves solutes with their concentration gradient, osmosis moves solutes against their concentration gradient osmosis is a form of active transport, simple diffusion is a form of passive transport Det betalen տներն ոգու

In 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

Which type of membrane transporter requires a gradient to move molecules across the membrane? O Voltage-gated channels Leak channels O Ligand-gated channels All of the above require a gradient O None of the above require a gradient

7. Which of the following membrane transport proteins would you expect to be the most selective (although not the most rapid)? the bicarbonate ion channel the glucose carrier protein the potassium ion channel the chloride ion channel the sodium ion channel

Match the following statement related to membrane transport processes to the appropriate term or terms: passive transport, facilitated transport, active transport. A transporter (or carrier) protein is necessary. (Select all that apply.) passive transport facilitated transport active transport O O