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WorksheetsCells & Life Processes-Review
Total questions: 35
Worksheet time: 35mins
Name
Class
Date
1.
The levels of organization in an organism from largest to smallest are atoms, elements, molecules, compounds, cells, tissues, organs, and organ systems
a)
True
b)
False
2.
An element is any substance that cannot be broken down into simpler substances.
a)
True
b)
False
3.
The smallest unit of an element is a particle called a(n) molecule.
a)
True
b)
False
4.
A(n) molecule is the basic unit of structure and function inliving things.
a)
True
b)
False
5.
A(n) organ is made of different kinds of tissues that function together
a)
True
b)
False
6.
Cells are the basic unit of structure and function in living things.
a)
True
b)
False
7.
Telescopes are instruments that can magnify very small objects
a)
True
b)
False
8.
Cells were first observed by Robert Hooke.
a)
True
b)
False
9.
Light microscopes use beams of electrons to produce magnified images.
a)
True
b)
False
10.
Resolution is the condition when objects appear larger than they really are.
a)
True
b)
False
11.
Magnification is the ability to distinguish details on an object.
a)
True
b)
False
12.
If a compound microscope has a 10× lens inits eyepiece and a 20× lens in its nosepiece, its total magnification is 100×.
a)
True
b)
False
13.
The scientist who determined that all animals are made out of cells was
a)
Hooke
b)
Schleiden
c)
Schwann
d)
Virchow
14.
A compound microscope with a 10× eyepiece and a 40× objective has a magnification of
a)
10×
b)
40×
c)
50×
d)
400×
15.
Which of the following statements is NOT part of the cell theory?
a)
All cells are produced from other cells.
b)
Cells can absorb food and oxygen.
c)
All living things are composed of cells.
d)
Cells are the basic units of structure andfunction in living things.
16.
The visible field of a microscope is 10 mm wide. How large is an object that takes up 1 /4 of the field?
a)
1 mm
b)
2.5 mm
c)
4 mm
d)
5 mm
17.
In some cells, the processes that help maintain homeostasis include getting and using energy from food and removing wastes
a)
True
b)
False
18.
Unlike animals, plants and some other organisms can make their own food.
a)
True
b)
False
19.
All multicellular organisms grow during some part of their lifetimes.
a)
True
b)
False
20.
Diffusion is a process in which one cell splits into two new cells that are genetically identical to the original cell.
a)
True
b)
False
21.
Reproduction of cells is one of the processes that helps multicellular organisms maintain homeostasis.
a)
True
b)
False
22.
Plant cells have chloroplasts, but animal cells do not.
a)
True
b)
False
23.
The cell’s nucleus is filled with a substance called protein.
a)
True
b)
False
24.
The ribosomes fill the region between the cell membrane and the nucleus.
a)
True
b)
False
25.
Ribosomes are made in a special region of the nucleus called the nucleolus.
a)
True
b)
False
26.
Chromatids are held together by a
a)
spindle fiber
b)
centromere
c)
cell plate
d)
centriole
27.
The formation of a cell plate is a characteristic of
a)
cytokinesis in plant cells
b)
cytokinesis in animal cells
c)
Both
d)
Neither
28.
The total number of cells in an organism increases as a result of which process?
a)
respiration
b)
photosynthesis
c)
cell division
d)
fermentation
29.
The correct order for the parts of mitosis are
a)
prophase, interphase, metaphase,anaphase
b)
telophase, anaphase, metaphase, prophase
c)
interphase, prophase, metaphase,telophase
d)
prophase, metaphase, anaphase, telophase
30.
Cell division allows organisms to grow, repair damaged structures, and produce energy.
a)
True
b)
False
31.
Mitosis results in the formation of two daughter cells.
a)
True
b)
False
32.
The process in which the cell makes an exact copy of the DNA in its nucleus is replication
a)
True
b)
False
33.
Cell growth and production of new organelles and enzymes are characteristics of prophase.
a)
True
b)
False
34.
It would take five cell divisions for one original cell to produce 128 new cells.
a)
True
b)
False
35.
The two rod-like parts that make up a chromosome are called chromatids.
a)
True
b)
False
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