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Course: AQA A Level Biology 7402
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Curriculum

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

9.2.6 Questions with Specific Instructions – Unit exam questions

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  • Questions count: 12
  • Passing grade: B+
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1.
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.
2.
Which of the following can be inferred from these data?
SAT Biology - Question 155
A
B
C
D
E
3.
Which of the following statements can be made from review of these data? (see the figure)
Which of the following statements can be made from review of these data? (see the figure)
Enzyme 1 works best in a basic environment and at a lower temperature.
All three enzymes work best above 20 C when pH is held at 7.
Enzyme 1 is more efficient than enzyme 2 at 10 C and pH 7.
The pH does not affect the efficiency of enzyme 3.
All three enzymes work better in an acidic environment than a basic one.
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.
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
6.
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.
7.
Word equation for aerobic respiration:
Water → oxygen + hydrogen
Carbon dioxide + water → glucose + oxygen
Glucose + oxygen → carbon dioxide + water
Glucose → lactic acid
8.
The word equation for aerobic respiration is:
Glucose → lactic acid
Glucose → ethanol + CO₂
Glucose + oxygen → carbon dioxide + water
Carbon dioxide + water → glucose + oxygen
9.
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
10.
From the fruit fly linkage data presented, one can conclude that these genes are (see the figure)
From the fruit fly linkage data presented, one can conclude that these genes are (see the figure)
sex-linked.
epistatic.
holandric.
linked.
11.
Word equation for photosynthesis:
Oxygen + water → glucose
Carbon dioxide + water → glucose + oxygen
Glucose → carbon dioxide + ethanol
Glucose + oxygen → carbon dioxide + water
12.
The graph shows net primary production. Based on the data, which biome could potentially have a gross primary production rate equivalent to 500 grams per square meter per year?
SAT Biology - Question 177
A
B
C
D
E
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Part of 9. Exam Guidance and Skills — see every lesson and quiz in this unit.
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