andP: Ch11 HW: Nervous Tissue-Google Chrome ew ?assignmentProblemlD= 102092129&o
ID: 3516727 • Letter: A
Question
andP: Ch11 HW: Nervous Tissue-Google Chrome ew ?assignmentProblemlD= 102092129&offset;= next Secure https/ C Ch11 HW: Nervous Tissue Concept Boost Video Tutor: Chapter 11 How Do Positive lons Create a Negative Resting Membrane P Which of the following membrane proteins is involved in active transport? ?K" leak channel O Na, leak channel O Na" voltage-gated channel Submit Part B-lon movement It the cytosol loses K* ions through leak channels, it will become less negative O more positive more negative. O There will be no change in the membrane potential Submit Part C-Na"K+ pump ? For every ATP Split into an ADP and a phosphate, the Na.K' pump moves out of the cell and into the cell 3 K 2 Na 2 K 3 Na O Type here to search '?Explanation / Answer
Answer 1. ). Na+/K+ pump is involved in active transport protein.
Explanation: In leak channels, the concentration gradient of the ions is the driving force, it does not require energy, so leak channels are not involved in active transport.
Voltage-gated channels on the other hand driven by the voltage gradient across the cell membrane. This channels too do not use active transport.
Na+/K+ pump is actually known as Na+ /K+ ATPase pump, which uses ATP and is involved ion active transport.
Part B:
The answer is: More negative.
Explanation: Assuming that K+ channel is only allowing K+ to go out of the cell, other ions are not moving.
At resting state inside of cytosol is negatively charged and outside is positively charged ( relative status) . Now losing K+ ion from cytosol means losing positive charge from cytosol ---> so cytosol will become more negative as it is losing positive charge as K+ ions.
Part: C
The function of Na+/K+ATPase pump : 3 Na+ moves out of cell and 2 K+ moves into the cell.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.