BSCS Biology: A Molecular Approach

Chapter 3: Exchanging Materials with the Environment

Living Systems as Compartments

1.
The cell interior, or ____, is surrounded by a wall and membrane.
A)transport protein
B)nucleus
C)cytoplasm
D)glycoprotein
2.
Which of the following is a potentially toxic ion that is discharged by cells?
A)hydrogen
B)chloride
C)calcium
D)ammonium
3.
Charged molecules can pass through a cell membrane only with the help of a ____ protein.
A)transport
B)cytoplasmic
C)charged
D)denatured
4.
A membrane such as the one shown here, which allows only certain substances to pass through, is said to be ____.

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A)certainly permeable
B)selectively permeable
C)diffusive
D)effusively transparent
5.
Glycoproteins and glycolipids, membrane cells that have sugars attached to them, act as cellular ____.
A)transports
B)antennae
C)barriers
D)telephones
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