Unit Test

Question 1

Consider the plant cells in the image below.Which is a function of the cell structure that is labeled X?

Revolt · Accepted Answer

C: It provides support.

Question 2

An animal cell (left) and a plant cell (right) are shown.Which organelle, labeled X in the diagram, is found in both plant and animal cells?

Revolt · Accepted Answer

B: the cell membrane

Question 3

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 4

Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?

Revolt · Accepted Answer

B: contains mostly cellulose; forms the outer layer of animal cells

Question 5

Which organelles are not found in plant cells?

Revolt · Accepted Answer

D: centrioles

Question 6

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

Revolt · Accepted Answer

B: phagocytosis

Question 7

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 8

Which is a function of the cell membrane?

Revolt · Accepted Answer

B: controls what enters and leaves the cell

Question 9

Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts, and the second cell has very few. What would most likely characterize these cells?

Revolt · Accepted Answer

D: The second cell would not be able to produce as much food because it could not capture very much sunlight.

Question 10

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

Revolt · Accepted Answer

A: mitochondria

Unit Test Answers

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