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Cells Ch. 1 A
Test Description: Cells and Heredity Ch 1 A
Instructions: Answer all questions to get your test result.
1) What is the total magnification of a microscope with two lenses when one lens has a magnification of 15, and the other lens has a magnification of 30?
A
450
B
45
C
30
D
15
2) Which of the following statements is part of the cell theory?
A
All cells are produced from other cells.
B
Only plants are composed of cells.
C
Cells are one of several basic units of structure and function in living things.
D
Cells can be produced from nonliving matter.
3) Which of the following statements is NOT part of the cell theory?
A
All cells are produced from other cells.
B
All living things are composed of cells.
C
Cells are the basic unit of structure and function in living things.
D
Only animals are composed of cells.
4) What is the function of a cell membrane?
A
to form a hard outer covering for the cell
B
to perform different functions in each cell
C
to support the cell
D
to control what enters and leaves the cell
5) Which organelle is the control center of a cell?
A
ribosome
B
chloroplast
C
nucleus
D
mitochondrion
6) Which of the following best describes the function of mitochondria?
A
They store energy from food molecules.
B
They store energy from sunlight.
C
They produce nucleic acids that release energy.
D
They convert energy from food molecules into energy the cell can use.
7) How does a bacterial cell differ from a plant or animal cell?
A
It has no cytoplasm.
B
It does not have a nucleus.
C
It is larger
D
It has no organelles.
8) Cells in many-celled organisms
A
are the same size in every part of the organism.
B
all look the same.
C
are often quite different from each other.
D
all have the same structure.
9) Specialized cells are found only in
A
many-celled organisms.
B
bacteria.
C
single-celled organisms.
D
animals.
10) Why is water important for a cell?
A
Most chemical reactions in cells require water.
B
All proteins are made of water.
C
Water is the main ingredient in DNA.
D
Water is an essential organic compound for the body.
*select an answer for all questions
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