Curriculum
Course: AQA A Level Biology 7402
Login

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

2.3.6 Uncontrolled Cell Division and Cancer – Exam questions

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 12
  • Passing grade: B+
Start Quiz
1.
Which statement best describes Cancer?
Which statement best describes Cancer?
Uncontrolled cell division.
Division giving 2 identical diploid cells.
Division giving 4 genetically different haploid gametes.
Two sets of chromosomes.
2.
Cancer cells often
stop dividing permanently
ignore checkpoint signals and divide uncontrollably
lack DNA
only divide when growth factors are present
3.
The graph compares normal and cancer cells in culture. Which explanation fits?
Dr Dabour Hub Academy - figure 1
Normal cells stop at contact; cancer cells ignore contact inhibition
Cancer cells divide more slowly
Normal cells never stop
Both obey contact inhibition
4.
Which dish in the diagram most likely contains cancer cells?
Dr Dabour Hub Academy - figure 2
Dish A
Dish B
Both dishes
Neither dish
5.
Which pairing of feature and cancer cell is correct?
Checkpoints — obeyed
Contact with neighbours — stops division
Rate of division — controlled
Apoptosis — evaded
6.
Cancer incidence by age is shown. What explains the rise with age?
Cancer is caused by one mutation at birth
Several mutations in different control genes must accumulate over time
Older cells divide faster
Apoptosis increases with age
7.
Using the table, how many times higher is the cancer rate at 60–69 than at 20–29?
About 3 times
About 1 100 times
About 55 times
About 27 times
8.
A study finds smokers have higher lung cancer rates. Why must other factors like age be considered?
Age never affects cancer
Smoking is not a carcinogen
It makes the sample larger
They could also affect cancer risk, confounding the comparison
9.
A study concludes a food causes cancer after testing 5 people. What is the main weakness?
The sample is far too small to draw a reliable conclusion
Too many people
Food cannot be studied
Cancer is not measurable
10.
The spread of cancer cells to other parts of the body is _____.
metastasis
apoptosis
differentiation
cytokinesis
11.
Cancer cells ignore contact inhibition. True or false?
False
False, they obey it more
True only for benign tumours
True
12.
Cancer usually results from a single mutation in one gene. True or false?
True
False
True in children
True for skin cancer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
Part of 2. Cell Structure — see every lesson and quiz in this unit.
Accepted payment methods