[Maximum number: 1]

The diagram shows a high-power drawing of a bacterium.

Which three components are found in both this bacterium and an animal cell?

A

capsule, cell membrane and cell wall

B

capsule, DNA and ribosome

C

cell membrane, cell wall and DNA

D

cell membrane, DNA and ribosome

[Maximum number: 1]

Which structures are found in typical eukaryotic cells?
1 70S ribosomes
280 S ribosomes
3 linear DNA (chromosomes)
4 circular DNA

A

1, 2, 3 and 4

B

1, 2 and 3 only

C

1 and 4 only

D

2 and 3 only

[Maximum number: 1]

Which row correctly shows the presence of a cell structure in typical plant cells and in typical prokaryotic cells?

typical plant cells

typical prokaryotic cells

key

✓ = present

$\boldsymbol{\chi}=$ not present

✓

×

✓

[Maximum number: 1]

Which features are found in typical eukaryotes and also in typical bacteria?

[Maximum number: 1]

Which structure is present in all eukaryotic cells but not present in prokaryotic cells?

A

70 S ribosome

B

cell wall

C

chromatin

D

plasmid

[Maximum number: 1]

Which of the following are found in both eukaryotic and prokaryotic cells?
1 cellulose
2 deoxyribose
3 lipids
4 ribose

A

1, 2 and 3

B

1, 2 and 4

C

1, 3 and 4

D

2, 3 and 4

[Maximum number: 1]

Which row about typical prokaryotic cells and typical animal cells is correct?

lysosomes present for the break down of old organelles

ATP is produced by the cell

✓

$\boldsymbol{\chi}$

✓

$\boldsymbol{\chi}$

✓

$\boldsymbol{\chi}$

key
✓ = correct for typical prokaryotic cells and typical animal cells
$\boldsymbol{\chi}=$ not correct for both cells but correct for either typical prokaryotic cells or typical animal cells

[Maximum number: 1]

The diameter of living cells varies considerably.
The typical diameters are

Use these measurements to find the maximum number of each cell type which could fit along a line 1 cm long.

number of white

blood cells

number of

Streptococcus cells

$6.7 \times 10^{3}$

$1.3 \times 10^{5}$

$6.7 \times 10^{2}$

$1.3 \times 10^{4}$

$6.7 \times 10^{1}$

$1.3 \times 10^{3}$

$6.7 \times 10^{0}$

$1.3 \times 10^{2}$

[Maximum number: 1]

Which statements about a typical eukaryotic cell are correct?
1 It is smaller than $2 \mu \mathrm{~m}$ .
2 It has a nucleolus.
3 It has linear DNA.
4 It only has small (70S) ribosomes.

A

1 and 2 only

B

1 and 4 only

C

2 and 3 only

D

3 and 4 only

[Maximum number: 1]

Which row shows features of a typical eukaryotic cell?

cell size

nucleus

DNA

ribosome size

$<2 \mu \mathrm{~m}$

absent

linear

large 80 S

$<2 \mu \mathrm{~m}$

present

circular

small 70 S

$>2 \mu \mathrm{~m}$

present

circular

small 70 S

$>2 \mu \mathrm{~m}$

present

linear

large 80 S