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Nursing School and Allied Health Entrance Exam: Biology - Cells, Structure, and Function Practice Test
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Nursing School and Allied Health Entrance Exam: Biology - Cells, Structure, and Function Practice Test
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25 Questions

1. In photosynthesis, the reactants CO2 and H2O, in the presence of sunlight and chlorophyll, combine chemically to produce glucose and O2. The O2 comes from
2. Cells that contain more dissolved salts and sugars than the surrounding solution are called
3. Refer to the following equation and graph of an enzyme-catalyzed cellular reaction.
fig7-msp416.eps
Choose the correct statement, relative to 10 minutes of reaction time.
4. The plasma membrane of the eukaryotic cell determines selectively which substances can enter and leave the cell. Such a membrane is said to be
5. Refer to the following equation and graph of an enzyme-catalyzed cellular reaction.
fig7-msp416.eps
The linear distance between P1 and P2 on the above graph is the initial velocity of the reaction, as expressed by the slope (m) of the line (see above formula), which is
6. Refer to the following diagram.
fig8-msp416.eps
Exponential growth (I):
ΔN/Δt = rN–change in number per change in time
Logistic growth (II):
Image61597.EPS
Choose the correct statement expressed by curve II, as N approaches K.
7. Which particular structure is present in both eucaryotic and prokaryotic cells?
8. The movement of substances from lesser concentration to higher concentration is called
9. The concentration of glucose in blood cells is lower than the concentration of glucose in liver cells. During active transport, glucose moves from blood cells into the liver. Which organelle would you expect to find in large numbers in the liver?
10. Plant cells differ from animal cells in that plant cells
11. The plasma membrane is soluble to
12. Substance x passes through a plasma membrane easily. What phrase best describes the probable nature of the substance?
13. Refer to the following structural formula.
fig5-msp414.eps
In human digestion, this compound is the end product of
14. Refer to the following diagram.
fig8-msp416.eps
Exponential growth (I):
ΔN/Δt = rN–change in number per change in time
Logistic growth (II):
Image61597.EPS
Choose the correct statement about curve I.
15. You place a cell in a solution of substance x and water. Substance x is always present in the cell, but you do not know the concentration ratio in either case. The cell increases in size. What is the tonicity of the solution in which you placed the cell?
16. The AIDS virus is transported in bodily fluids. The Surgeon General of the United States sends out information about the disease and its transmission. In one section, there is a recommendation that one should use latex (a form of plastic) condoms rather than those made of natural membranes. This recommendation is probably based upon the principal of
17. Which pair of organelles is responsible for energy supply to eukaryotic cells?
18. Which term denotes the movement of glucose molecules from an area of lower concentration to an area of higher concentration?
19. You collect some pond water and filter out the different organisms into separate jars. You add no food to the water, but one kind of organism is still alive long after the others have died. That species is best described as being
20. Which cell type is characterized by the lack of a true nucleus and the absence of membrane-bound organelles?
21. With which organelle is the synthesis of ATP associated?
22. Organisms that live on dead organic matter are called
23. If a radioactive element with a half-life (t1/2) of 100 years has 31.5 kg remaining after 400 years of decay, the amount in the original sample was close to
24. The virus belongs to which one of the following kingdoms?
25. If a red blood cell is placed in sea water, it will be in what kind of solution?