BSCS Biology: A Molecular Approach

Chapter 6: Cell Structures and Their Functions

Chapter Test

1.
Which of the following best summarizes the cell theory?
A)Cells are the units of structure and function of all organisms, and new cells are formed by combining existing cells.
B)Cells define the units of structure and function of all organisms, and all cells of the same shape share the same function.
C)Cells are the basic units of structure and function of all organisms, and all cells come from preexisting cells.
D)Cells are the basic units of structure and function, and all cells are produced by dividing existing cells.
2.
Which type of microscope does not allow living cells to be viewed?
A)compound light microscope
B)transmission electron microscope
C)compound microscope
D)scanning tunneling microscope
3.
Which of the following is not true of prokaryotes?
A)They can be found in extreme environments.
B)They almost always exist as a single cell.
C)They are highly adaptable.
D)They have a fully formed nucleus.
4.
Most of the DNA of eukaryotes is found in which structure?
A)the mitochondria
B)the Golgi apparatus
C)the nucleus
D)the cell membrane
5.
What is the composition of the cell wall of most prokaryotes?
A)lipids, proteins, and carbohydrates
B)proteins, carbohydrates, lipids, and cellulose
C)proteins and carbohydrates
D)lipids, carbohydrates, and cellulose
6.
What type of cell is pictured, and how can you identify it?

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A)It is a prokaryotic plant cell because it has a cell wall.
B)It is a eukaryotic plant cell because it has a cell wall.
C)It is a eukaryotic cell because it has a flagella.
D)It is a prokaryotic cell because it has a nucleoid.
7.
Where does protein synthesis occur in eukaryotic cells?
A)in the endoplasmic reticulum
B)in the Golgi apparatus
C)in the mitochondria
D)in the nucleus
8.
Why are single-celled organisms that are usually found in clusters not considered a multicellular organism?
A)because each cell can break away and form its own cluster
B)because each cell lacks all the structures needed to carry on life functions
C)because each cell has its own cell wall
D)because the cells do not work together in any way
9.
The epidermis is an example of a(n) ____.
A)organism
B)organ system
C)tissue
D)organelle
10.
Which of the following lists levels of structure in the biosphere from simplest to most complex, beginning with the basic unit of life?
A)cell, organ, tissue, organ system, organism, population, community, ecosystem, biosphere
B)organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
C)cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
D)cell, molecule, tissue, organ, organ system, organism, ecosystem, population, community, biosphere
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