Pre-Exam Biology Quiz

Animals store most of their excess energy reserves as ______ because ______.

In an experiment involving an enzyme, the pH is raised from 2 to 11. What will be the most likely effect of this increased pH on the reaction?

• The enzyme will denature and the reaction will not occur.

• The activation energy of the reaction would be reduced.

• The rate of reaction will speed up due to the increase in pH.

• The reaction will remain the same because pH does not affect enzyme activity.

Which of the following statements accurately describes viruses?

• I and IV

• II and III

• II and V

• III and V

Tags

NGSS.HS-LS1-1

Which letter in the cell diagram indicates the structure responsible for maintaining homeostasis by means of passive and active transport?

• A

• B

• C

• D

Tags

NGSS.HS-LS1-3

While cleaning a saltwater aquarium, students placed a family of fiddler crabs from the saltwater tank into a container of freshwater. What effect will this have on the saltwater crabs?

• The crabs will not be affected at all.

• The crabs will die if left in the freshwater because their cells will lyse (burst).

• The crabs will die if left in the freshwater because their cells will shrink.

• The crabs will excrete excess salts left in their systems.

Tags

NGSS.HS-LS1-3

NGSS.HS-LS4-5

The graphic below represents the different stages of the cell cycle. Specific genes within the DNA (called inhibitors) stop the cell cycle in the G1 phase. This process helps to keep the DNA unaltered and the cell dividing at the normal rate. Certain chemicals in the environment may result in a cell’s DNA to mutate which may then prevent the inhibitors from stopping the cell cycle. Which of the following is most likely to occur if a cell’s DNA mutates and the cell cycle becomes unregulated?

• fewer cells produced

• cell death

• cancer

• birth defects

Tags

NGSS.HS-LS3-2

Stem cells may be similar to the cells of a developing embryo because both cell types can

• produce only one type of cell.

• divide and differentiate.

• help the brain to learn and remember things.

• cause Alzheimer's and Parkinson's disease.

Tags

NGSS.HS-LS1-4

Carbon dioxide is required for which of the following processes in photosynthesis?

• the light-dependent reactions

• the absorption of water

• the release of oxygen

• the Calvin Cycle

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NGSS.HS-LS2-5

Glucose is stored as ______ in the liver and muscles.

What is the correct equation for aerobic respiration in humans?

• A. glucose + oxygen → carbon dioxide + water + energy

• B. glucose + carbon dioxide → water + oxygen + energy

• C. water + oxygen + energy → glucose + carbon dioxide

• D. energy + water + glucose → carbon dioxide + oxygen

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3