Jena has been assigned a project for school where she is asked to demonstrate the activity of the sodium-potassium pump using yellow marbles to represent sodium and green marbles to represent potassium. How many marbles will Jena need and explain how she could demonstrate the movement of the ions through the pump?
What will be an ideal response?
Jena needs to explain to the class that the sodium-potassium pump pushes three sodium ions out of the cell and brings in two potassium ions. So she will need three yellow marbles to represent the sodium and two green marbles to represent the potassium. She should show that the pump moves the three yellow marbles out of the cell and brings in the two green marbles.
You might also like to view...
Sandra, age 52, is an administrative assistant working in the same law firm as Ella, age 25. Both are excellent at their jobs, even though Sandra is older and has some slowing in her reaction time. What allows Sandra to perform her job as well as Ella?
A. Sandra is given less difficult work to complete, whereas Ella receives more challenging assignments. B. Ella lacks experience and understanding of the complex material. C. Sandra has developed selective optimization, whereby she can look further into the material to compensate for her slower reactions. D. Sandra has greater verbal skills development than Ella.
All of the following are problems associated with the pituitary gland, EXCEPT for
a. acromegaly. b. virilism. c. dwarfism. d. giantism.
Dramatic play supports the development of such cognitive qualities as curiosity, exploration, symbolic thinking, and problem solving
Indicate whether the statement is true or false
Erotic __________ refers to the degree to which sex drive is shaped by cultural, social, and situational factors
a. adaptability b. malleability c. change d. plasticity