Chapter 4: Cells And Their Env. Active T.
9 Questions
| Total Attempts: 103
Questions and Answers
- 1.Explain sodium potassium pumps. Include why they are important, four steps to their function and whether it is a form of active or passive transport and why.
- 2.Name three functions of a second messenger.
- 3.Explain the difference between carrier proteins used in passive transport and those used in active transport.
- 4.Endocytosis is
- A.
The movement by a vesicle into a cell
- B.
Transportation for larger molecules such as proteins and polysaccrides
- C.
Transportation for waste to leave the cell
- 5.____________ is used by nerve cells and other various glands to export modified proteins. (Export by vesicles)
- 6.The binding of signal molecules to receptor proteins cause changes in the cell including:
- A.
Activation of enzymes in cell
- B.
Triggering formation of second messanger
- C.
A change of permeability of membrane
- D.
All above
- 7.Hormones are exaples of
- 8.Beta blockers
- A.
Are given to patients witha rapid heart beat
- B.
Interfere with binding of signal molecules
- C.
Prevent the heart from getting message to speed up unnecessarily
- 9.Another name for the fighting cells of the immune system. (NOT reffering to a "coloured" cell)
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