Review Self_Quiz -- CELL STRUCTURES:
Below are some multiple choice self-quiz review questions to reinforce chapter terms and important concepts. Some of these questions may appear on the exams.

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1. Blood plasma (in human blood vessels) is _____ compared to a human red blood cell:

a. isotonic
b. hypotonic
c. hypertonic
d. hyposonic
e. hypersonic

2. A human red blood cell is _____ compared to distilled water:

a. isotonic
b. hypotonic
c. hypertonic
d. hyposonic
e. hypersonic

3. The outer plasma membrane that separates a cell from its environment:

a. nuclear membrane
b. cell wall
c. organelle
d. cell membrane
e. cell lining

4. A structure in the cytoplasm of a cell that has specific, specialized functions:

a. organ
b. organ system
c. organelle
d. organism
e. organcito

5. Chloroplasts are found

a. only in "animal" cells
b. only in "plants" cells
c. in all living cells
d. in all prokaryotic cells
e. in all eukaryotic cells

6. Mitochondria are found:

a. only in "animal" cells
b. only in "plants" cells
c. in all living cells
d. in all prokaryotic cells
e. in all eukaryotic cells

7. A bag with a semipermeable membrane is filled with a sugar solution and placed in a beaker of distilled water. The distilled water is ____ compared to the sugar solution:

a. isotonic
b. hypotonic
c. hypertonic
d. hyposonic
e. hypersonic

8. True or false? The cell theory states that all organisms are composed of cells, and that all cells come from preexisting cells.

a. true
b. false

9. Cells that do NOT produce cells walls are

a. animal cells
b. plant cells
c. bacteria
d. algae
e. all of the above produce cell walls

10. Definition of diffusion:

a. movement of molecules from an area of higher concentration to an area of lower concentration
b. movement of water across a semipermeable membrane from an area of higher concentration to an area of lower concentration
c. movement of molecules from an area of lower concentration to an area of higher concentration
d. movement of water across a semipermeable membrane from an area of lower concentration to an area of higher concentration
e. movement of a substance against its concentration through the release of energy from ATP

11. Definition of osmosis:

a. movement of molecules from an area of higher concentration to an area of lower concentration
b. movement of water across a semipermeable membrane from an area of higher concentration to an area of lower concentration
c. movement of molecules from an area of lower concentration to an area of higher concentration
d. movement of water across a semipermeable membrane from an area of lower concentration to an area of higher concentration
e. movement of a substance against its concentration through the release of energy from ATP

12. Cell products are secreted from the cell through

a. passive transport
b. facilitated transport
c. cotransport
d. endocytosis
e. exocytosis

13. Which statement does NOT describe one of the functions of proteins of the plasma membrane?

a. forming a channel through the membrane
b. initiating the replication of the genetic material
c. binding to a substance to carry it through the membrane
d. acting as a receptor for substances external to the cell
e. increasing the rate of chemical reactions

14. The current theory of the structure of the cell membrane is best described by the _____ model.

a. sandwich
b. fluid-mosaic
c. ubit membrane
d. electrochemical
e. photo

15. See figure below: Identify which cell is in a hypotonic solution or a hypertonic solution.

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