Pretest Answers

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3

Which statement about vacuoles is true?

A
Vacuoles are larger in animal cells than in plant cells.
B
Only animal cells contain vacuoles.
C
Only plant cells contain vacuoles.
D
Vacuoles are larger in plant cells than in animal cells.
4

What function do chloroplasts perform?

A
They provide temporary storage for the plant’s water.
B
They use light energy to make food for the plant.
C
They control the activities in the cell.
D
They produce proteins for the cell.
5

Which statement most likely describes the structures he has represented so far? James is making models of plant and animal cells using objects supplied by his teacher to represent organelles. For one cell, he will place the objects in a shoebox. First he fills a balloon with water and places it in the shoe box. He also drops a handful of marbles into the box.

A
He could be making either a plant or animal cell. The box is the cell wall, and the balloon represents the large vacuole. The marbles are the centrioles.
B
He is making an animal cell. The box is the cell membrane, and the balloon represents the large vacuole. The marbles are the endoplasmic reticulum.
C
He is making a plant cell. The box is the cell wall, and the balloon represents the large vacuole. The marbles are the tiny ribosomes.
D
He is making a plant cell. The box is the cell wall, and the balloon represents the nucleus. The marbles are the centrioles.
6

Which organelles are found in plant cells but not in animal cells?

A
cell membrane, vacuole
B
cell wall, chloroplasts
C
cell membrane, chloroplasts
D
cell wall, vacuole
8

Which statement most likely describes the structures he has represented so far? James is making models of plant and animal cells using objects supplied by his teacher to represent organelles. For one cell, he will place the objects in a shoebox. First he fills a balloon with water and places it in the shoe box. He also drops a handful of marbles into the box.

A
He is making a plant cell. The box is the cell wall, and the balloon represents the nucleus. The marbles are the centrioles.
B
He is making a plant cell. The box is the cell wall, and the balloon represents the large vacuole. The marbles are the tiny ribosomes.
C
He could be making either a plant or animal cell. The box is the cell wall, and the balloon represents the large vacuole. The marbles are the centrioles.
D
He is making an animal cell. The box is the cell membrane, and the balloon represents the large vacuole. The marbles are the endoplasmic reticulum.
10

Which organelle is labeled E?

A
Golgi apparatus
B
chloroplast
C
ribosome
D
nucleus

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