3—Cells exam review questions
and answers.
Differentiated Cell - n
ANS ✔✔
Cells with specialized characteristics
Qs
3 Major Parts of a Cell - n
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Nucleus, Cytoplasm and Cell Membrane
Qs
The nucleus of a cell contains? - n
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DNA
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What does DNA do? - n
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Directs the cells functions
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Cytosol - n
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Fluid matrix of cytoplasm
Qs
What is the general function of Cytoplasm? - n
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It provides support to the internal structures of a cell and maintains the shape of the cell.
Qs
Cell Membrane - n
ANS ✔✔
The permeable outermost layer of a cell.
Qs
Signal Transduction - n
ANS ✔✔
, Series of biochemical reactions that allows cells to receive and respond to messages
coming through the cell membrane.
Qs
Cellular adhesion molecules - n
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Proteins that guide movements of cells. (CAMS)
Qs
Selectively permeable - n
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Membrane that allows some types of molecules through but not others
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What are some functions of membrane proteins? - n
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Receive and transmit messages into a cell, form pores, channels and carriers, catalyze
chemical reactions, enable cells to stick to each other.
Qs
Cytoskeleton - n
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Protein rods and tubules that form a supportive framework that reinforces a cells 3D
form.
Qs
Ribosomes - n
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Tiny, spherical structures composed of protein and RNA.
Qs
Endoplasmic reticulum - n
ANS ✔✔
A complex organelle composed of membrane-bound flattened sacs, elongated canals,
and fluid filled vesicles.
Qs
Organelle - n
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A structure or compartment in a cell that houses the biochemical reactions that carry out
a specific function
Qs
Vesicles - n
ANS ✔✔
Membranous sacs that vary in size and content.