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Which statement is true about a cell wall but not a cell membrane?

A
It forms the outer layer of a cell.
B
It is made mostly of cellulose.
C
It is selectively permeable.
D
It gives an animal cell its shape.
3

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?

A
is semipermeable; found in animal cells
B
is found in plant cells; is found in animal cells
C
contains mostly cellulose; forms the outer layer of animal cells
D
helps with communication; contains mostly cellulose
6

What does it mean for a membrane to be selectively permeable?

A
The membrane is rigid and nothing can enter or leave the cell.
B
All types of molecules are able to pass into the cell.
C
Only certain molecules are allowed to pass through.
D
The membrane is rigid and only allows water to pass through.
7

Which organelle captures the energy from sunlight and converts it to chemical energy, and in which cells could it be found?

A
chloroplasts, which can be found in leaf cells of trees
B
ribosomes, which can be found in muscle cells of humans
C
the Golgi apparatus, which can be found in lung cells of animals
D
lysosomes, which can be found in all cells of grasses
9

Which is a structure that directs the cell's activities?

A
mitochondrion
B
ribosome
C
nucleus
D
Golgi apparatus
10

Which statement about the cell membrane is true?

A
It is present in animal cells only.
B
It prevents harmful substances from entering a cell.
C
It contains cellulose and sugars that are involved in communication.
D
It is rigid and elastic for supporting the cell’s shape.

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