Question 1
3.2 out of 3.2 points
Which of these is an organelle that would be useful in a cell that takes in and destroys viruses?
Selected
... [Show More] Answer:
a lysosome
Question 2
3.2 out of 3.2 points
Which of the following statements is an element of cell theory?
Selected Answer:
All cells come from pre-existing cells.
Question 3
3.2 out of 3.2 points
Five of the six carbon atoms in a glucose molecule are typically found
Selected Answer:
bonded together with an oxygen atom in a ring structure.
Question 4
3.2 out of 3.2 points
Lipids are a class of molecules defined by
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Selected Answer:
their insolubility in water.
Question 5
3.2 out of 3.2 points
An amino group, a carboxylic acid group, a hydrogen atom and one or more atoms composing a side
chain (“R” group) all together make up a monomer called
Selected Answer:
an amino acid.
Question 6
0 out of 3.2 points
It is impossible to write a brief dictionary definition of life because
Selected Answer:
what life is keeps changing with time.
Question 7
3.2 out of 3.2 points
A prokaryotic cell is protected against osmotic swelling and rupture by its
Selected Answer:
cell wall.
Question 8
3.2 out of 3.2 points
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The nucleoid of a prokaryotic organism contains
Selected Answer:
DNA and proteins.
Question 9
3.2 out of 3.2 points
The four major classes of biomolecules are:
Selected Answer:
carbohydrates, lipids, proteins and nucleic acids.
Question 10
3.2 out of 3.2 points
When a prokaryotic bacterial cell has a second outer membrane, the membrane’s function is to
Selected Answer:
b. and c. above
Question 11
3.2 out of 3.2 points
__________, the cell’s DNA plus its scaffolding contains the cell’s archive of ______.
Selected Answer:
Chromatin, information
Question 12
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3.2 out of 3.2 points
The polymer _______ enables the cell’s information to flow from DNA out into the cell cytoplasm in
a more expressible form.
Selected Answer:
RNA
Question 13
3.2 out of 3.2 points
In a eukaryotic cell the reactions of _______ process energy into the form of ATP within a structure
called the __________.
Selected Answer:
cell respiration, mitochondrion
Question 14
3.2 out of 3.2 points
In order for the nasty bacterium Streptococcus pyogenes to adhere to your throat cells, attachment to
your cells must be made. This is done using new proteins called _____ and new cell structures called
________.
Selected Answer:
adhesins, fimbriae
Question 15
3.2 out of 3.2 points
Eukaryotic cells heavily responsible for making proteins have their ribosomes arranged within a
network of channels known as the
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Selected Answer:
rough endoplasmic reticulum [Show Less]