Active Transport: Sodium-potassium Atpase – Biological Membranes
Über den Vortrag
Der Vortrag „Active Transport: Sodium-potassium Atpase – Biological Membranes“ von Kevin Ahern, PhD ist Bestandteil des Kurses „Biochemistry: Basics“.
Quiz zum Vortrag
Which of the following best describes active transport?
- The movement of molecules across the membrane against their concentration gradients using energy.
- The movement of sodium ions across the membrane along their concentration gradients using energy.
- The movement of sodium ions across the membrane against their concentration gradients without using energy.
- The movement of water molecules across the membrane against its concentration gradient using the energy in the form of NADH2.
- The movement of water molecules across the membrane along its concentration gradient using the energy in the form of NADH2.
Which of the following statements is NOT true regarding the sodium-potassium ATPase pump?
- The Na+/K+ pump uses energy in the form of ATP to transport the Na+ and K+ ions along their concentration gradients.
- The Na+/K+-ATPase pump is embedded in the lipid bilayer.
- The Na+/K+ pump puts three Na+ ions out of the cell for every two K+ ions taken into the cell.
- The Na+ /K+ -ATPase pump generates a resting potential.
- The Na+/K+-ATPase is necessary to maintain osmotic balance within the cell.
What will happen if the Na+/K+-ATPase pump fails to work?
- The cells will swell and lyse due to higher osmolarity inside the cell.
- The cell will begin to lose water and shrink.
- The cell will keep on working as it does under normal conditions.
- The cell will start to grow and will divide into two cells.
- The cell will start to synthesize heat shock proteins to cope with the high salt concentrations around the cell.
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Dozent des Vortrages Active Transport: Sodium-potassium Atpase – Biological Membranes
Kevin Ahern, PhD
Dr. Kevin Ahern is a Professor in the Department of Biochemistry and Biophysics at Oregon State University (OSU), USA.
He obtained his PhD in Biochemistry from Oregon State University. Currently, he teaches courses for health sciences students at OSU.
He is co-author of three Open Educational electronic textbooks on Biochemistry and a Guide to Getting Into Medical School.
Due to his achievements, he earned OSU’s highest teaching recognition, the Elizabeth P. Ritchie Distinguished Professor Award in 2017.
Within Lecturio, Dr. Ahern teaches courses on Biochemistry and on "How to Get into Medical School”.
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