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95' SBIOA Exam
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Exam Part A: M/C Part B: Short Answers Part C: Essay Question 94 Exam 95
Exam 97
Exam
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PART A:
Multiple Choice. Answer
all the
following. [1
mark each].
21
.
Respiration in green plants takes place
a
. only when photosynthesis stops.
b
. only in the cells which do not
contain chlorophyll.
c
. only during the day time.
d
. all of the time.
e
. only during the night time.
22
.
Black flies reproduce at a rate of 23% every day.
Initially there are 200 black flies.
How many flies will there be in 21 days?
a
. less than 200
b
. 200
c
. 200 to 1000
d
. 1000 to 10 000
e
. more than 10 000
23
.
Moths, as in the forest-tent caterpillars, exhibit:
a
. J-curve growth cycles.
b
. Sigmoidal shaped growth cycles.
c
. K shaped growth cycles.
d
. Capacity Level shaped cycles.
e
. none of the above.
24
.
Which of the following portions of functional groups will NOT
H-bond?
a
. C-H
b
. O-H
c
. C=O
d
. S-H
e
. N-H
25
.
Four of the following are groups of amino acids.
One is not. Which is
not a grouping of amino acids?
a
. positively charged polar
b
. positively charged
c
. negatively charged
d
. neutral, non-polar
e
. neutral, polar
26
.
In a yeast cell starved of oxygen gas, pyruvate undergoes:
a
. aerobic redcution to lactic acid
b
. anaerobic reduction lactic acid
c
. aerobic reduction to ethanol
d
. anaerobic redcution to ethanol
27
.
The average temperate-climate forest stores 5000 kcal/m2
of energy per day. (5000 kcal/m2×day). How much food energy
would be stored in a forest in a 200 day growing season?
a
. 200 kcal
b
. 125 000 kcal
c
. 25 000 000 kcal
d
. 50 000 000 00 kcal
e
. cannot be calculated
28
.
An example of a monosaccharide is
a
. sucrose.
b
. cellulose.
c
. glycogen.
d
. glucose.
e
. maltose.
29
.
Some water, a small amount of soil, a few green aquatic plants
and a fish were placed in a large bottle. The bottle was sealed to
prevent the exchange of gases and other materials between its contents
and the outside. The bottle was placed in a window to receive
light during the daytime. Is
carbon dioxide produced by the plants?
a
. Yes, it is produced all the time as a result of
cellular respiration.
b
. Yes, but it is produced only at
night when the plants can no longer carry on photosynthesis.
c
. No, it is a waste product of
animals only.
d
. No, plants take in only the waste
products exhaled by animals.
e
. No, plants only produce oxygen.
30
.
The process by which messenger RNA is synthesized from a DNA
template is called:
a
. replication.
b
.
transcription.
c
. translocation.
d
. transpiration.
e
. translation.
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