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WorksheetsLook Up Science
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
In Experiment 1, as the reaction temperature increased, the time until the purple color disappeared:
a)
remained the same.
b)
decreased only.
c)
increased only.
d)
increased, then decreased.
2.
Based on the information in Table 1, a cube-shaped cell with which of the following edge lengths will have the greatest S/V?
a)
20 mm
b)
40 mm
c)
60 mm
d)
80 mm
3.
Based on the information in Figure 1, a spherical cell with a diameter of 6 mm will have an S/V closest to which of the following values?
a)
.1 mm⁻¹
b)
1 mm⁻¹
c)
2 mm⁻¹
d)
10 mm⁻¹
4.
Based on the information in Table 1, if a cube-shaped plant cell had an edge length of .5 mm, it would have an S/V of:
a)
3 mm⁻¹
b)
6 mm⁻¹
c)
12 mm⁻¹
d)
18 mm⁻¹
5.
If Experiment 2 were repeated with an aqueous solution containing 80% C₂H₆O₂ by mass, the boiling point of the solution would most likely be:
a)
less than 100°C.
b)
between 100°C and 110°C.
c)
Between 110°C and 115°C.
d)
greater than 115°C.
6.
Based on the results of Experiment 1, the mass of 10.00 mL of which of the following aqueous solutions would be the greatest?
a)
10% C₂H₆O₂
b)
20% C₂H₆O₂
c)
30% C₂H₆O₂
d)
40% C₂H₆O₂
7.
According to figure 1, the greatest change in the percent saturation of Hb occurs within which of the following partial pressure ranges?
a)
0 mm Hg to 10 mm Hg
b)
20 mm Hg to 30 mm Hg
c)
40 mm Hg to 50 mm Hg
d)
60 mm Hg to 70 mm Hg
8.
How did increasing the incubation temperature of the controlled environment from 10°C to 15°C affect the SAC when Bacteria P cells were exposed to an O₂ concentration of 15% and a pH of 9? When the incubation temperature was increased from 10°C to 15°C, the SAC:
a)
increased; the SAC for Trial 10 was 7% and the SAC for Trial 4 was 9%.
b)
increased; the SAC for Trial 5 was 9% and the SAC for Trial 11 was 15%.
c)
decreased; the SAC for Trial 10 was 9% and the SAC for Trial 4 was 7%.
d)
decreased; the SAC for Trial 5 was 9% and the SAC for Trial 11 was 9%.
9.
Which of the growth conditions varied among Trials 7-9?
a)
Incubation temperature only
b)
Oxygen concentration only
c)
pH only
d)
Oxygen concentration and pH only
10.
The controlled environment used in Trial 2 and Trial 5 differed in which of the following ways?
a)
the pH of Trial 2 was more acidic than the pH of Trial 5.
b)
The pH of Trial 5 was more acidic than the pH of Trial 2.
c)
the O₂ concentration of Trial 2 was greater than the O₂ concentration of Trial 5.
d)
the O₂ concentration of Trial 5 was greater than the O₂ concentration of Trial 2.
11.
According to Combinations 5-8, as ρƒ increases, Vt:
a)
remains the same.
b)
increases only.
c)
decreases only.
d)
varies, but with no general trend.
12.
According to the results of Study 2, from a distance of 0 km to 700,000 km from the sun's core, how did the percent by mass of ¹²C compare to the percent by mass of ¹⁶O? The average percent by mass of ¹²C was:
a)
greater at each distance.
b)
less at each distance.
c)
greater at some distances but less at all other distances.
d)
greater at some distances but the same at all other distances.
13.
According to the results of Study 2, there was NO ¹²C at which of the following distances from the sun's core?
a)
0 km
b)
175,000 km
c)
300,000 km
d)
525,000 km
14.
Based on the results of Experiment 2, for a given material, as wavelength increased, Pmax:
a)
decreased only.
b)
increased only.
c)
varied, but with no general trend.
d)
remained the same.
15.
Based on the results of Experiment 1, V at Pmax for Substance 1 was closest to which of the following values?
a)
1.5 V
b)
3.0 V
c)
5.0 V
d)
7.0 V
16.
According to Table 1, what percent of tropical and subtropical crops could not be categorized in terms of sustainability due to insufficient data?
a)
0%
b)
3%
c)
9%
d)
19%
17.
Based on Figure 1, how many tons of cassave were being produced around the time of the East African land snail's first appearance in 1988?
a)
Between 23 million and 25 million
b)
Between 25 million and 27 million
c)
Between 27 million and 29 million
d)
Between 29 million and 31 million
18.
Based on Table 1, what percent of tropical and subtropical crops were the scientists able to place in a category of sustainability but did not classify as low or very low?
a)
9%
b)
24%
c)
64%
d)
67%
19.
For each of the devices tested, as Vs increased, I:
a)
decreased only.
b)
increased only.
c)
varied, but with no general trend.
d)
remained the same.
20.
Which level of copper exposure resulted in the highest average surface-area coverage for Hn algae?
a)
Level 1
b)
Level 2
c)
Level 3
d)
Level 4
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