choices for A: Na+/K+ pumps, voltage gated K+ channels,voltage gated Ca+ channels, voltage gated Na+...
choices for A: Na+/K+ pumps, voltage gated K+ channels,voltage gated Ca+ channels, voltage gated Na+ channelschoices for B: bidirectionally, unidirectionallychoices for C: Na+/K+ pumps, voltage gated K+ channels,voltage gated Ca+ channels, voltage gated Na+ channelschoices for D: Na+/K+ pumps, voltage gated K+ channels,voltage gated Ca+ channels, voltage gated Na+ channelsConsider this graph illustrating the generation of an action potential across the plasma membrane of a stimulated neuron. +40 ACTION POTENTIAL plasma membrane potential...
09. Which of the followine statements regarding channel proteins (shown below (shown below) is for propratic...
09. Which of the followine statements regarding channel proteins (shown below (shown below) is for propratic of all a. Channel proteins can assist polar molecules to cross the plasma membrane by facilitated diffusion b. The gated ion channel can allow ions to pass when stimulated to open. c. The surface of a channel protein in contact with the bilayer would likely have hydrophilic amino acids d. Water plays a role in determining which ions are allowed to pass through an...
21. The fluid in blood vessels and the Interstitial space is referred to as: a. The...
21. The fluid in blood vessels and the Interstitial space is referred to as: a. The extracellular fluid compartment b. Plasma c. The Intracellular fluid compartment 22. Why is the resting cell membrane more permeable to K+ than to Na+? a. Because gated K+ channels are always open. b. Because K+ can diffuse through the phospholipid bilayer of the resting cell membrane and Na+ cannot. c. Because the cell membrane contains Leak (ungated) K+ Channels. 23. Lipid soluble molecules, carbon...
Choose the item in column 2 that best matches each item in column 1. You may...
Choose the item in column 2 that best matches each item in column 1. You may use a column 2 item more than once. A requires direct ATP hydrolysis CO2, O2, H20 driven by an ion gradient - A active transport and indirect active transport transports glucose across membranes Bindirect active transport B. Na glucose symport facilitated diffusion (passive transport) Na */ ATPase pump D, active transport F. transports small, nonpolar molecules facilitated diffusion and active transport A F. simple...
Please summarize this chaptertyped clearly.Diffusion Is a passive process of transport. A single substance...
Please summarize this chaptertyped clearly.Diffusion Is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across a space. Facilitated transport Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins. Channels The integral proteins involved in facilitated transport are collectively referred to as transport proteins, and they...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
help with key word matchingMatch some of the keywords found in chapters with their correct...
help with key word matchingMatch some of the keywords found in chapters with their correct definition Phospholipid Oncogene A A type of diffusion that occurs down a concentration gradient B. This process occurs during exocytosis C. A localized redistribution of ions across the cell membrane, resulting in a shift of the membrane potential (Vm) to more positive values. D. The normal function of this dass of mutant gene is "regulates the cell cycle" Channels Electrochemical The membrane potential (Vm)...
FILL THE BLANKThe membranes of fishes that live in extreme cold have a highproportion...
FILL THE BLANKThe membranes of fishes that live in extreme cold have a highproportion of _________________ hydrocarbon tails, enabling them tostay fluid.For example, cold-adapted organisms such as winter wheatincrease the percentage of _________________ phospholipids in theirmembranes in the autumn to prevent the membranes from solidifyingduring winter.There are two major populations of membrane proteins:___________ and _____________.Integral proteinspenetrate the hydrophobic interior of the lipid bilayer, usuallycompletely spanning the membrane as________________proteins.________________ proteins...
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of...
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) mitochondria e) nucleus What protein is found (evenly distributed) along the entire length of the cell's plasma membrane: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) nucleus e) mitochondria Proteins found exclusively at the dendritic end of the neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors...
Lo 10: Electrochemical GradientThe difference in voltage across the membrane is called the__________________________________.The...
Lo 10: Electrochemical GradientThe difference in voltage across the membrane is called the__________________________________.The inside of a normalcell is ___________________(+/-); while the outside is ___________(+/-).The resting membrane potential of a neuronis___________mV.Diagram the relative ratios of Ca++, Na+ and K+ in a cell underresting conditions. Draw an arrow for each of the moleculesindicating which direction would be passive transport (into or outof the cell).For each of the following sentences, fill in...