Name ______________________________________________
Homeostasis and Regulation Review Quiz
1. Directions: Fill in the blank with the appropriate terms on ACTIVE and PASSIVE TRANSPORT.
(1 point each-Total: 6pts)
1._______________________ The tonicity where the solution has a higher concentration of
solute than the cell.
2._______________________ The type of transport that occurs spontaneously and moves
molecules along the concentration gradient.
3._______________________ The tonicity where the solution has a lower concentration of
solute than the cell.
4._______________________ The tonicity where the solution has the same concentration of
solute as the cell.
5._______________________ The type of transport that requires energy and moves molecules
against the concentration gradient.
6._______________________The movement of water molecules across a membrane.
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Complete the following questions using your knowledge and resources on the Signal Transduction Pathway.
2.
The four steps in the signal transduction pathway are listed below. Label the diagram above with
the Roman numerals to indicate where on the diagram each step is taking place. (2pt)
I. Signaling
II. Reception
III. Transduction
IV. Response
3. The diagram shows the movement of dye particles across a membrane over time. ( 1pt)
Which type of transport occurs in the diagram shown above?
a) Facilitated Diffusion
b) Simple Diffusion
c) Exocytosis
d) Endocytosis
4. Explain in your own words why signals that are large and polar can not easily diffuse across the cell
membrane to reach the receptors? (1pt)
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EXTRA CREDIT(1pt)
Explain in your own words and in full detail why Coffee is considered an inhibitor.
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Total point: 10pts
Points correct: ___pt
Extra Credit _______
Percentage________