Unit Test

Question 1

The data in the graph are the result of a paramecium being placed in a hypertonic salt solution.Based on the data in the graph, which would most likely happen if the paramecium were placed in distilled water?

Revolt · Accepted Answer

A: The contractions would increase.

Question 2

Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

Revolt · Accepted Answer

A: cell membrane

Question 3

A patient is in need of hydration. Which type of solution are the patient’s cells most likely in?

Revolt · Accepted Answer

B: hypertonic

Question 4

According to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts?

Revolt · Accepted Answer

B: phagocytosis

Question 5

The table lists some organelles and functions. Only one pair is correctly matched.Functions of OrganellesOrganelleFunctionNucleusDirects cell activityEndoplasmic reticulumBreaks down sugar molecules to supply energyGolgi apparatusSupports and protects organelles in the cellLysosomeProduces proteins for the cellWhich organelle in the table is correctly matched with its function?

Revolt · Accepted Answer

A: nucleus

Question 6

Which is a function of the cell membrane?

Revolt · Accepted Answer

B: controls what enters and leaves the cell

Question 7

Which structure will form when a primitive cell engulfs an aerobic bacterium?

Revolt · Accepted Answer

A: mitochondria

Question 8

Which organelles are not found in plant cells?

Revolt · Accepted Answer

D: centrioles

Question 9

What is shown in the image?

Revolt · Accepted Answer

A: prokaryote

Question 10

Which homeostatic process is characterized by the diffusion of only water molecules?

Revolt · Accepted Answer

B: osmosis

Unit Test Answers

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