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+

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+

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 4UC

See similar textbooks

Similar questions

a skeletal muscle cell has depleted its stores of ATP how will the altered transport properties of the NKA transporter affect cytosolic calcium concentrations (increase, decrease, no change) relative to normal? Why?
The sarcoplasmic reticulum Ca2+-ATPase, pumps 2 mol Ca2+ out of sarcomeres per mol ATP hydrolyzed. Given the following steady-state concentrations and a membrane potential of 67 mV (inside negative), calculate ΔG for the following active transport process at 37 ∘C and pH=7.4:2Ca2+(in)+ATP+H2O→2Ca2+(out)+ADP+Pi+H+
Glucose cannot enter easily inside the cell and require insulin to do so.What type of transport/movement does glucose exhibit?
Describe the effect of a blocker of cellular ATP production (e.g. anoxia plus sodium fluoride) on transport rate of ZZZ if transport occurs by active transport, simple diffusion and protein-mediated diffusion
In all human cells, there is a higher concentration of calcium ions outside of thecell than on the inside of the cell. Calcium pumps are primary active transportproteins that help to maintain this imbalance. Describe how calcium pumpswork, including the direction of ion transport and the source of energy of thecalcium pumps.
The Na+/glucose cotransporter in ION-GRADIENT-DRIVEN ACTIVE TRANSPORT, ________moves down its gradient and _______ against its gradient. Na+/K+ Na+/Na+ Na+/glucose glucose/glucose
Number of glucose carrier proteins in membrane Glucose diffusion rate (mM/sec) 300 0.0015 500 0.0023 700 0.0031 900 0.0040 How does increasing the number of glucose carrier proteins affect glucose diffusion rate?
What effect will increasing the proportion of unsaturated fatty acids in the bilayer have on the membrane's permeability to glucose? A) Permeability to glucose will increase. B) Permeability to glucose will decrese. C) Permeability to glucose will stay the same. D) Permeability will decrease initially then increase as the bilyaer fills with glucose.
Which statements are true? Explain why or why not.1 Transport by transporters can be either active orpassive, whereas transport by channels is always passive.2 Transporters saturate at high concentrations ofthe transported molecule when all their binding sites areoccupied; channels, on the other hand, do not bind theions they transport and thus the flux of ions through achannel does not saturate.3 The membrane potential arises from movementsof charge that leave ion concentrations practically unaf-fected, causing only a very slight discrepancy in the num-ber of positive and negative ions on the two sides of themembrane.
Movement of glucose from one side to the other side of the intestinal epithelium is a major example of transcellular transport. How does the Na+/K+ ATPase power the process? Why are tight junctions essential for the process? Why is localization of the transporters specifically in the apicalor basolateral membrane crucial for transcellular transport? Rehydration supplements such as sport drinks include a sugar and a salt. Why are both important to rehydration?
Glucose transport across cell membranes varies depending upon blood glucose levels. When glucose levels are high, glucose transport is accomplished via membrane transporters. When glucose concentrations are low, the transport of glucose across the membrane is dependent upon the sodium ion concentration. What types of transport is observed for glucose? A)simple diffusion at high [glucose], secondary active transport at low [glucose] B)facilitated diffusion at high [glucose], secondary active transport at low [glucose] C)simple diffusion at high [glucose], primary active transport at low [glucose] D)facilitated diffusion at high [glucose], primary active transport at low [glucose]
The average human generates approximately his or her weight in ATP every day. A resting person uses about 25% of this in ion transport—mostly via the Na+-K+ ATPase. About how many grams of Na+ and K+ will a sedentary 70-kg person pump across membranes in a day?