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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

2.1.1 The Cell Theory – Exam questions

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  • Questions count: 12
  • Passing grade: B+
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1.
Which statement of cell theory disproved spontaneous generation?
All cells come from pre-existing cells
The cell is the basic unit of life
All cells contain DNA
All living things are made of cells
2.
Whose contribution belongs at '?' in the cell theory timeline?
Dr Dabour Hub Academy - figure 1
Darwin — natural selection
Virchow — all cells come from cells
Mendel — laws of inheritance
Hooke — cork cells
3.
Which statement best describes Endosymbiotic theory?
Falls as a cell grows — the reason cells stay small.
The smallest distance at which two points still look separate — not the same as magnification.
Cell with a true nucleus and membrane-bound organelles.
Mitochondria and chloroplasts were once free-living bacteria engulfed by a larger cell.
4.
The table lists features of mitochondria and bacteria. Which theory do they support?
Spontaneous generation
Cell theory's first statement only
Theory of plate tectonics
Endosymbiotic theory
5.
Which pairing of evidence and theory is correct?
Cork boxes — endosymbiosis
Plasmids — spontaneous generation
Cellulose walls — Virchow's statement
Double membrane around mitochondria — endosymbiosis
6.
Using the table, what is the SA:V ratio of the 3 µm cell?
3 : 1
1.5 : 1
6 : 1
2 : 1
7.
Using the table, what happens to SA:V as cell side doubles from 2 to 4 µm?
It doubles
It stays the same
It quarters
It halves, from 3 : 1 to 1.5 : 1
8.
Which cell in the table is prokaryotic?
Cell 1
Cell 3
Cell 2
Cell 4
9.
In the same table, which cell is a fungal cell?
Cell 1
Cell 3
Cell 2
Cell 4
10.
A cell 50 µm long appears 20 mm long in a drawing. What is the magnification?
×40
×2 500
×400
×1 000
11.
The diagram shows cell A. What is region X?
Dr Dabour Hub Academy - figure 2
Nucleus
Nucleoid
Chloroplast
Vacuole
12.
A cell has no nucleus, a single circular chromosome and 70S ribosomes. It is _____.
prokaryotic
a plant cell
a fungal cell
eukaryotic
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Part of 2. Cell Structure — see every lesson and quiz in this unit.
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