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Course: AQA A Level Biology 7402
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AQA A Level Biology 7402

1. Biological Molecules

0/102

2. Cell Structure

0/95

3. Exchange and Transport

0/98

4. Genetics, Variation and Interdependence

0/94

5. Energy Transfers In and Between Organisms (A Level only)

0/63

6. Organisms Respond to Changes in their Environments (A Level only)

0/93

7. Genetics, Populations, Evolution and Ecosystems (A Level only)

0/55

8. The Control of Gene Expression (A Level only)

0/72

9. Exam Guidance and Skills

0/38
Quiz

9.2.2 Precision – Unit exam questions

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  • Questions count: 12
  • Passing grade: B+
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1.
A dialysis bag containing 0.5 M solution is placed in a beaker of 0.6 M solution. After a while, what would you expect to have happened?
A dialysis bag containing 0.5 M solution is placed in a beaker of 0.6 M solution. After a while, what would you expect to have happened?
Net flow of water out of the bag, so it decreases in size.
Net flow of water into the bag, so it swells in size.
The bag stays exactly the same size because no water moves.
The solute moves out of the dialysis bag into the beaker.
2.
What can be inferred from the data about the ecological relationship between P. ochraceus and M. californianus?
SAT Biology - Question 054
A
B
C
D
E
3.
Word equation for aerobic respiration:
Water → oxygen + hydrogen
Carbon dioxide + water → glucose + oxygen
Glucose + oxygen → carbon dioxide + water
Glucose → lactic acid
4.
A single gene from five related leafhopper species was compared. Which phylogenetic tree best represents the data? (see the figure)
A single gene from five related leafhopper species was compared. Which phylogenetic tree best represents the data? (see the figure)
Tree A
Tree B
Tree C
Tree D
5.
From the transpiration rate data, which plant appears to be most resistant to transpiration? (see the figure)
From the transpiration rate data, which plant appears to be most resistant to transpiration? (see the figure)
Plant A
Plant B
Plant C
Plants B and C are similarly resistant
6.
A researcher who expects a drug to work judges 'improvement' by looking at patients. What problem is most likely?
Bias, because judgement rather than measurement is used
Too large a sample
The independent variable is measured
Peer review is impossible
7.
Which of the following can be inferred from these data?
SAT Biology - Question 155
A
B
C
D
E
8.
From the transpiration rate data, it appears that transpiration rate rises as (see the figure)
From the transpiration rate data, it appears that transpiration rate rises as (see the figure)
temperature increases, wind speed decreases, humidity decreases
temperature increases, wind speed increases, humidity decreases
temperature increases, wind speed increases, humidity increases
temperature decreases, wind speed increases, humidity increases
9.
You pick one data point from all three generations and the enamel thickness score is 15. Which can be inferred? (see the figure)
You pick one data point from all three generations and the enamel thickness score is 15. Which can be inferred? (see the figure)
The individual comes from generation 1.
The individual comes from generation 50.
The individual comes from generation 100.
The individual could be from any of these generations.
10.
During which time period do the data suggest this area may have experienced a natural disaster?
SAT Biology - Question 179
A
B
C
D
E
11.
Which conclusion is BEST supported by the data?
SAT Biology - Question 079
A
B
C
D
E
12.
Word equation for photosynthesis:
Oxygen + water → glucose
Carbon dioxide + water → glucose + oxygen
Glucose → carbon dioxide + ethanol
Glucose + oxygen → carbon dioxide + water
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Part of 9. Exam Guidance and Skills — see every lesson and quiz in this unit.
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