proton pumps in plant cells are functionally similar to an animal cells... a) Na+/k+ pumps b)...
proton pumps in plant cells are functionally similar to an animal cells...
a) Na+/k+ pumps
b) carrier proteins that mediate co-transport
c) ligand-gated ion channels
d) contractile vacuoles
e) aqua jets
Homework Answers
Carrier protein that mediate co-transport is similar to the proton pumps present in the olant celss require hydrogen gradient in both of them as a functionally similarity
Add Answer to:
proton pumps in plant cells are functionally similar to an
animal cells...
a) Na+/k+ pumps
b)...
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+ channels
choices for B: bidirectionally, unidirectionally
choices for C: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for D: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
Consider this graph illustrating the generation of an action potential across the plasma membrane of a stimulated neuron. +40 ACTION POTENTIAL plasma membrane potential...
47. Active transport of solutes is mediated by and in plant and animal cells, respectively A....
47. Active transport of solutes is mediated by and in plant and animal cells, respectively A. H-pump and Ca-pump B. K-pump and Ca-pump C. Na-pump and H'-pump D. H-pump and Na"-pump E. C & D 48. One is NOT TRUE about integral membrane proteins. A. They can move inside the lipid bilayer B. Their hydrophobic amino acid side chains face the lipid bilayer C. Their hydrophilic amino acids form the hydrophilic pore D. They can easily by separated from the...
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane....
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane. (That's obvious) 2. It plays a role in maintaining the resting membrane potential. Why? 3. The steep electrochemical gradient of Na+ is used in "coupled active transport" (coupled pumps). If the Nat/K+ pump stops, then these Na+ coupled transport mechanisms will also eventually stop. Explain The apical surface of the epithelial cells that line the lumen of the gut contains a symport that used...
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a...
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a solute-specific protein carrier Facilitated diffusion transports solute against its’ concentration gradient Which of the following is TRUE about primary active cell membrane transport? It is a form of transport that requires a protein “pump” It is a form of transport that transports ions and/or solute against their concentration gradient It is a transport mechanism that requires energy released from the splitting of ATP by...
QUESTION 39 Whereas animal cells drive indirect transport across the plasma membrane with a Na+ gradient,...
QUESTION 39 Whereas animal cells drive indirect transport across the plasma membrane with a Na+ gradient, other organisms like plants and bacteria use O A a glucose gradient B. a Ca2+ gradient C. a proton gradient D. osmosis E. endocytosis and exocytosis. Flight energy
QUESTION 5 Animal cells have a negative membrane potential; why is this O A. All of...
QUESTION 5 Animal cells have a negative membrane potential; why is this O A. All of these answers are correct B. Respiration produces an abundance of acidic metabolites. C. None of these answers are correct OD. Proton pumps in the plasma membrane pump H+ out of the cell. O E. Sodium-potassium pumps export more Na+ than they import K+ into the cell.
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and th...
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and the concentration of K is 130 mM. The extracellular concentrations of Na and K are 145 mM and 5 mM, respectively. Calculate the energy required for the transport of Na and K , with this stoichiometry; assume that the cell...
1. In paracrine signaling, the signaling molecules affects only: Target cells close to the cell from...
1. In paracrine signaling, the signaling molecules affects only: Target cells close to the cell from which it was secreted a. b. Target cells distant from its site of synthesis in cells of an endocrine organ Both a. and b. с. d. None of these 2. Below are listed the events that occur in cell to cell communication. Signal transduction occurs 1. 2. Plasma membrane receptor binds with a ligand A cellular response is effected 3. 4. Ligand is released...
Efer Figure2 to answer questions 18-21: 8. produce the myelin sheaths of neurons in the central F...
efer Figure2 to answer questions 18-21: 8. produce the myelin sheaths of neurons in the central Figure 2 nervous system. 19 form the Blood Brain Barrier 20._ are responsible for neurotransmitter release. 21 have ligand gated ion channels that are activated by neurotransmitters 22. Functionally, which cellular location is the neuron's "decision- making site" as to whether or not an action potential will be initiated? A axonal membrane B. axon hillock C. dendritic membrane D. presynaptic membrane 23. Calcium and...
22. Urea cycle takes place primarily in what cell types: A) Kidney cells B) Pancreatic cells...
22. Urea cycle takes place primarily in what cell types: A) Kidney cells B) Pancreatic cells c) Liver cells D) Mitochondrial cells 23. Which of the following proteins serve as proton pumps in the Electron Transport Chain (ETC): A) NADH dehydrogenase B) Cytochrome Coxidase C) Cytochrome C D) Succinate dehydrogenase E) Coenzyme Q-10 F) All of the above G) Both A) and B) are correct H) Both B) and C) are correct 1) Both A) and D) are correct 24....
choices for A: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for B: bidirectionally, unidirectionally
choices for C: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for D: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
Consider this graph illustrating the generation of an action potential across the plasma membrane of a stimulated neuron. +40 ACTION POTENTIAL plasma membrane potential...
47. Active transport of solutes is mediated by and in plant and animal cells, respectively A. H-pump and Ca-pump B. K-pump and Ca-pump C. Na-pump and H'-pump D. H-pump and Na"-pump E. C & D 48. One is NOT TRUE about integral membrane proteins. A. They can move inside the lipid bilayer B. Their hydrophobic amino acid side chains face the lipid bilayer C. Their hydrophilic amino acids form the hydrophilic pore D. They can easily by separated from the...
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane. (That's obvious) 2. It plays a role in maintaining the resting membrane potential. Why? 3. The steep electrochemical gradient of Na+ is used in "coupled active transport" (coupled pumps). If the Nat/K+ pump stops, then these Na+ coupled transport mechanisms will also eventually stop. Explain The apical surface of the epithelial cells that line the lumen of the gut contains a symport that used...
QUESTION 39 Whereas animal cells drive indirect transport across the plasma membrane with a Na+ gradient, other organisms like plants and bacteria use O A a glucose gradient B. a Ca2+ gradient C. a proton gradient D. osmosis E. endocytosis and exocytosis. Flight energy
QUESTION 5 Animal cells have a negative membrane potential; why is this O A. All of these answers are correct B. Respiration produces an abundance of acidic metabolites. C. None of these answers are correct OD. Proton pumps in the plasma membrane pump H+ out of the cell. O E. Sodium-potassium pumps export more Na+ than they import K+ into the cell.
1. In paracrine signaling, the signaling molecules affects only: Target cells close to the cell from which it was secreted a. b. Target cells distant from its site of synthesis in cells of an endocrine organ Both a. and b. с. d. None of these 2. Below are listed the events that occur in cell to cell communication. Signal transduction occurs 1. 2. Plasma membrane receptor binds with a ligand A cellular response is effected 3. 4. Ligand is released...
efer Figure2 to answer questions 18-21: 8. produce the myelin sheaths of neurons in the central Figure 2 nervous system. 19 form the Blood Brain Barrier 20._ are responsible for neurotransmitter release. 21 have ligand gated ion channels that are activated by neurotransmitters 22. Functionally, which cellular location is the neuron's "decision- making site" as to whether or not an action potential will be initiated? A axonal membrane B. axon hillock C. dendritic membrane D. presynaptic membrane 23. Calcium and...
22. Urea cycle takes place primarily in what cell types: A) Kidney cells B) Pancreatic cells c) Liver cells D) Mitochondrial cells 23. Which of the following proteins serve as proton pumps in the Electron Transport Chain (ETC): A) NADH dehydrogenase B) Cytochrome Coxidase C) Cytochrome C D) Succinate dehydrogenase E) Coenzyme Q-10 F) All of the above G) Both A) and B) are correct H) Both B) and C) are correct 1) Both A) and D) are correct 24....
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