WALGREENS PTCB PREP QUESTIONS AND
ANSWERS WITH VERIFIED SOLUTIONS 100%
The price of a 20" television changed from $450 to $400.
Find the percentage change in price.
A.
-10%
B.
-11%
C.
-13%
D.
-15% - ANSWER Correct answer: -11%
Change in price: 450 - 400 = 50
,To determine the percentage change, divide the change
in price by the initial price:
50 = 0.1111
450
Multiply by 100 to determine the percentage: 0.1111 ×
100 = 11.11%
Because the price decreased, the change in price is
negative: -11.11%, or about -11%
Which of the following is not a type of natural lipid?
A.
Supersaturated
B.
Polyunsaturated
,C.
Saturated
D.
Unsaturated - ANSWER Correct answer: Supersaturated
There are three types of natural lipids: unsaturated,
polyunsaturated, and saturated. Supersaturation is a not
a naturally occurring lipid.
Unsaturated and polyunsaturated lipids have one or
more double bonds between carbon atoms of fatty acid
chains; saturated lipids share no such double bonds.
A common example of supersaturation is rock candy,
which is created from a supersaturated sugar solution.
Which of the following is not true of mitosis?
, A.
Daughter cells are different than parent cells
B.
Daughter cells are identical to parent cells
C.
It produces daughter cells
D.
It occurs only in eukaryotic cells - ANSWER Correct
answer: Daughter cells are different than parent cells
Mitosis is a cell cycle during which a parent cell produces
an identical daughter cell. It has four main phases:
prophase, metaphase, anaphase, and telophase. Since
the parent and daughter cells are identical, both diploids
and haploids can undergo mitosis.
ANSWERS WITH VERIFIED SOLUTIONS 100%
The price of a 20" television changed from $450 to $400.
Find the percentage change in price.
A.
-10%
B.
-11%
C.
-13%
D.
-15% - ANSWER Correct answer: -11%
Change in price: 450 - 400 = 50
,To determine the percentage change, divide the change
in price by the initial price:
50 = 0.1111
450
Multiply by 100 to determine the percentage: 0.1111 ×
100 = 11.11%
Because the price decreased, the change in price is
negative: -11.11%, or about -11%
Which of the following is not a type of natural lipid?
A.
Supersaturated
B.
Polyunsaturated
,C.
Saturated
D.
Unsaturated - ANSWER Correct answer: Supersaturated
There are three types of natural lipids: unsaturated,
polyunsaturated, and saturated. Supersaturation is a not
a naturally occurring lipid.
Unsaturated and polyunsaturated lipids have one or
more double bonds between carbon atoms of fatty acid
chains; saturated lipids share no such double bonds.
A common example of supersaturation is rock candy,
which is created from a supersaturated sugar solution.
Which of the following is not true of mitosis?
, A.
Daughter cells are different than parent cells
B.
Daughter cells are identical to parent cells
C.
It produces daughter cells
D.
It occurs only in eukaryotic cells - ANSWER Correct
answer: Daughter cells are different than parent cells
Mitosis is a cell cycle during which a parent cell produces
an identical daughter cell. It has four main phases:
prophase, metaphase, anaphase, and telophase. Since
the parent and daughter cells are identical, both diploids
and haploids can undergo mitosis.
