The sodium-calcium exchanger is a membrane protein that transports calcium to the periplasm (outside the cell),...
- The sodium-calcium exchanger is a membrane protein that
transports calcium to the periplasm (outside the cell), maintaining
a low cellular calcium concentration. This protein is powered by
sodium moving into the cell, down its concentration gradient. The
sodium-calcium channel is an example of what type of protein?
- Uniporter
- Symporter
- Antiporter
- P-type ATPase
- None of the above
Homework Answers
Sodium calcium channel iis an example of ANTIPORTER. As this channel works on the basis of electrochemical gradient transporting sodium and calcium in opposite direction at the same time.
- Uniporter transports only single type of substance.
- Symporter transports multiple substances in one direction.
- Antiporter transports 2 types of substances in opposite direction simultaneously.
- P type ATPase - uses ATP molecule to transport substances in and out.
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The sodium-calcium exchanger is a membrane protein that
transports calcium to the periplasm (outside the cell),...
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown...
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown below? Glycoprotein Man HO- HNo HO OR OH OM o0 wtracedular cell membrane eytesel Integral membrane protein GPI-anchored protein Peripheral membrane protein membrane proteins are bound primarily by electrostatic and hydrogen-bond interactions with the head groups of lipids. Peripheral membrane protein O Integral membrane protein GPI-anchored protein An antiporter and a symporter are examples of: passive diffusion Osecondary active transport O primary active transporters...
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You are studying a particular kind of Ca2+ transport protein in a purified system (the protein...
You are studying a particular kind of Ca2+ transport protein in a purified system (the protein is the only transporter in the membrane). You find that if you add ATP to the interior of the membrane system, there is no change in the Ca?* concentration outside the cell. However, if you add an excess of Ca2+ to the interior of the cell, then you see an increase in the Ca2+ concentration outside the cell. What kind of transporter do you...
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Considering that the Nat-K+ ATPase membrane protein is essential for maintaining an electrochemical gradient across cell membranes, which of the following is likely not a component of an electrolyte solution for treating dehydration? Choose one: O Ο Α. ΑΤΡ B. potassium o C. glucose • D. sodium
1.Select 5-10 of the following vocabulary terms located near the bottom of the document. 2.. show...
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Match each of the following types of membrane transport with the correct example (some answers may...
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Consider a uniport system where a carrier protein transports an uncharged substance A across a cell...
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33) Which of the following is most likely true of a protein that cotransports glucose and...
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1. 2. 3. Select all that apply. The sodium-potassium ion pump: hydrolyzes ATP, utilizing the free...
1.
2.
3.
Select all that apply. The sodium-potassium ion pump: hydrolyzes ATP, utilizing the free phosphate ion to temporarily bind to the transport protein. opens a channel through the membrane by phosphorylating one subunit of the transport protein. D is the only known ion pump. D is mediated by one enzyme that both hydrolyzes ATP and transports the ions. can be run in reverse, phosphorylating ADP to ATP Which of the following describes secondary active transport? O The antiport...
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown below? Glycoprotein Man HO- HNo HO OR OH OM o0 wtracedular cell membrane eytesel Integral membrane protein GPI-anchored protein Peripheral membrane protein membrane proteins are bound primarily by electrostatic and hydrogen-bond interactions with the head groups of lipids. Peripheral membrane protein O Integral membrane protein GPI-anchored protein An antiporter and a symporter are examples of: passive diffusion Osecondary active transport O primary active transporters...
You are studying a particular kind of Ca2+ transport protein in a purified system (the protein is the only transporter in the membrane). You find that if you add ATP to the interior of the membrane system, there is no change in the Ca?* concentration outside the cell. However, if you add an excess of Ca2+ to the interior of the cell, then you see an increase in the Ca2+ concentration outside the cell. What kind of transporter do you...
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Match each of the following types of membrane transport with the correct example (some answers may be used more than once): Calcium is moved out of a cell to the extracellular fluid where the solution of calcium is hypertonic Glucose moves from high concentration in the extracellular fluid around a capillary to an area of lower concentration near a cell A cell with 18 sodium molecules outside and 3 inside moves three of the sodium molecules out while using ATP...
Consider a uniport system where a carrier protein transports an uncharged substance A across a cell membrane. Suppose that at a certain ratio of [A]_inside to [A]_outside, the delta G for the transport of substance A from outside the cell to the inside, A_outside rightarrow A_inside, is 11.1 kJ/mol at 25 degree C. What is the ratio of the concentration of substance A inside the cell to the concentration outside? [A]_inside/[A]_outside = Choose the true statement about the transport of...
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1.
2.
3.
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