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B1 Cell Biology (AQA Combined Science: Trilogy)

Total questions: 70

Worksheet time: 2hrs 41mins

Name
Class
Date
1.

What is the part of the animal cell that is labelled by A?

a)

Cell membrane

b)

Chloroplast

c)

Mitochondrion

d)

Nucleus

2.

Which of these units is most suitable for measuring the length of a cell?

a)

Kilometre

b)

Metre

c)

Centimetre

d)

Micrometre

3.

A cell of the pancreas produces digestive enzymes, which are proteins. The enzymes are released into the small intestine.

Suggest which two of the following are adaptations to its role?

Tick two boxes.

a)

A small surface area to volume ratio

b)

Large numbers of ribosomes

c)

Mitochondria with well-developed internal membranes

d)

The ability to move

4.

By which two processes does glucose enter cells in the human body?

Tick two boxes.

a)

Active transport

b)

Diffusion

c)

Digestion

d)

Osmosis

e)

Transpiration

5.

Choose one word to complete the sentence.

The structure in a cell that controls the cell's activities is called the _________

a)

Cell membrane

b)

Cytoplasm

c)

Mitochondrion

d)

Nucleus

6.

A microscope has a x10 eyepiece and a x40 objective lens. What is the total magnification?

a)

x10

b)

x4

c)

x40

d)

x400

7.

How many millimetres are there in a metre?

a)

10

b)

1000

c)

.1

d)

100

8.

This question is about an animal cell.

How do you describe a cell that has a nucleus?

a)

Eukaryotic

b)

Prokaryotic

c)

Archaea

d)

Bacteria

9.

What process takes place in the mitochondria?

a)

Aerobic respiration

b)

Photosynthesis

c)

Anaerobic respiration

d)

Transpiration

10.

What is found inside a nucleus in a cell?

a)

Chromosomes

b)

Vacuole

c)

Cell membrane

d)

Ribosomes

11.
What type of cell is this?
a)
animal
b)
plant
c)
bacteria
d)
algae
12.
Which of these would you not find in an animal cell?
a)
cell membrane
b)
cell wall
c)
nucleus
d)
ribosome
13.
Which of these would you not expect to find in a bacterial cell?
a)
cell wall
b)
cell membrane
c)
nucleus
d)
cytoplasm
14.
What is the function of the ribosomes?
a)
respiration
b)
protein synthesis
c)
cell replication
d)
DNA replication
15.
When cells become specialised for a particular role, it is known as ...?
a)
cell differentiation
b)
cell replication
c)
cell reproduction
d)
cell mitosis
16.
Unspecialised cells that can differentiate to form many different types of cell are known as...?
a)
Stem cells
b)
Specialised cells
c)
Differential cells
d)
Special cells
17.
Which of the following is the correct statement?
a)
Both plant and animal cells differentiate at an early stage.
b)
Animal cells differentiate early, whilst many plant cells can differentiate throughout life.
c)
Plant cells differentiate early, many animal cells can differentiate throughout life.
d)
The majority of both plant and animals cells can differentiate later in life.
18.

When a cell becomes differentiated, it produces ________ specific to its function by turning on and off genes.

a)

Stem cells

b)

Proteins

c)

Characteristics

d)

Genes

19.
Stem cell research is controversial because in involves?
a)
social issues
b)
ethical issues
c)
educational issues
d)
economical issues
20.
What is the result of mitosis?
a)
1 cell
b)
2 genetically identical cells
c)
2 genetically different cells
d)
4 genetically identical cells
21.

How many chromosomes do humans have in a typical body cell?

a)

46

b)

23

c)

21

d)

42

22.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
23.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
24.
In meiosis, the four resulting cells are 
a)
identical to the starting cell and different from each other.
b)
different from the starting cell and different from each other. 
c)
identical to the starting cell and identical to each other.
d)
different from the starting cell and identical to each other.
25.

Why do cells need to be replicated in organisms?

a)

growth

b)

repair of damaged cells

c)

replacement of dying cells.

d)

All of the above

26.

A human cell has 46 chromosomes before mitotic division. How many chromosomes will the daughter cells have after mitosis?

a)

12

b)

23

c)

46

d)

92

27.
Asexual reproduction will result in
a)
Identical offspring to the parent
b)
Twins
c)
Meiosis
d)
Non-identical offspring to the parent
28.
The purpose of meiosis is to form ________ cells.
a)
body
b)
sex
c)
somatic
d)
brain
29.

Bacteria reproduce asexually by a process called

a)

replication

b)

meiosis

c)

mitosis

d)

binary fission

30.

If a species had 50 chromosomes in its body cells, how many would be found in its gametes?

a)

100

b)

25

c)

50

31.

How are plant stem cells different to human stem cells?

a)

Human stem cells can become any kind of human cell, plant stem cells can only become root cells or leaf cells.

b)

Human stem cells can only become neurones or kidney cells, whereas plant stem cells can become any kind of cell.

c)

Once plant cells have differentiated into specialised cells, they can re-differentiate into another type of specialised cell if needed.

d)

Once human cells have differentiated, they mutate to give you special powers, like x-ray vision!

32.

What type of microscope has the highest resolving power?

a)

light

b)

electron

c)

neither

33.

If the eyepiece lens is x15 and the objective lens is x40, what is the total magnification?

a)

x600

b)

x2.5

c)

x400

d)

x750

34.

what is the name for number 12 on the diagram?

a)

adjustment knob

b)

fine focus

c)

course focus

d)

stage changer

35.

If the magnification was x600, and the image size was 40mm, what is the actual size?

a)

66 micrometres

b)

0.066 mm

c)

24000 micrometres

d)

24mm

36.

What type of cell is this?

a)

prokaryotic

b)

eukaryotic

37.

the parts of a plant cell that an animal cell does not have

a)

cell membrane, vacuole, chloroplast

b)

vacuole, cell membrane, chlorophyll

c)

chloroplast, vacuole, cell wall

d)

chlorophyll, chloroplast, nucleus

38.

Cell walls are made from this carbohydrate

a)

glucose

b)

starch

c)

sucrose

d)

cellulose

39.

what part of the cell is this? and what role does it have?

a)

chloroplast and photosynthesis

b)

mitochondria and photosynthesis

c)

mitochondria and respiration

d)

chloroplast and respiration

40.
B1.1.1 Adult humans have some stem cells in them, true or false? 
a)
True
b)
False
41.
B1.1.2 Which of the following is NOT a method by which substances can move across a cell membrane? 
a)
Photosynthesis
b)
Active transport
c)
Osmosis 
d)
Diffusion
42.
B1.1.2 Which of these is smallest? 
a)
Cell
b)
Organ
c)
Organelle
d)
Tissue
43.
B1.1.2 What is the function of the vacuole? 
a)
Site of metabolic reactions
b)
Controls the cell's activity
c)
Stores dissolved sugars and other solutes as sap
d)
Controls what enters and leaves the cell
44.
B1.1.2 What describes a group of specialised cells that perform the same function in the body? 
a)
Organ system
b)
Organelle
c)
Organ
d)
Tissue
45.
B1.1.4 From what type of cell do all our tissues come from?
a)
Myocytes
b)
Tissue cells
c)
Adipose cells
d)
Stem cells
46.
B1.1.4 How many cells are produced by mitosis?
a)
8
b)
4
c)
1
d)
2
47.
B1.1.4 what is the process by which cells become specialised? 
a)
Ligation
b)
Differentiation
c)
Special process
d)
Stemnation
48.
B1.2.1 In what form is human DNA stored?
a)
Alleles 
b)
RNA
c)
Chromosomes
d)
Genes
49.
B1.2.2 Which of the following CANNOT reproduce asexually using mitosis?
a)
Humans
b)
Some species of fungus
c)
Some species of plants
50.
B1.3.1 What process is defined as passive movement of substances down a concentration gradient? 
a)
Osmosis
b)
Diffusion
c)
Active transport
51.
B1.3.2 By which process does water move into the roots of a plant? 
a)
Facilitated diffusion
b)
Diffusion
c)
Active transport
d)
Osmosis
52.
B1.3.2 The net movement of water from a high to low water potential across a partially permeable membrane is...
a)
Active transport
b)
Water transport
c)
Osmosis
d)
Refraction
53.
B1.3.2 Osmosis involves the diffusion of which molecule...
a)
All of them
b)
Ions
c)
Sugars
d)
Water
54.
B1.3.3 Which process provides active transport with its energy?
a)
Respiration
b)
Contraction
c)
Breathing
d)
Photosynthesis
55.
B1.3.3 Which of these is an example of active transport?
a)
Small intestine, pumping in glucose
b)
All of the above
c)
Kidney - pumping out glucose
d)
Root hair cells - pumping in mineral ions
56.
B1.3.3 Cells where active transport takes place typically have many mitochondria - why?
a)
Mitochondria are storage sites for molecules which move by active transport
b)
Mitochondria produce the carrier proteins
c)
Mitochondria release energy, which is needed for active transport
57.
Eukaryotic cells are
a)
Plant and animal cells
b)
Bacterial cells
58.
Prokaryotic cells are
a)
Plant and animal cells 
b)
Bacterial cells
59.
In prokaryotic cells the
a)
genetic material is not enclosed in a nucleus
b)
genetic material is enclosed in a nucleus
60.
The correct order of units starting with the largest to smallest is
a)
centi, micro, milli, nano
b)
nano, milli, micro, centi
c)
centi, milli, micro, nano
d)
nano, centi, micro, milli
61.
The units for micrometers are
a)
µm
b)
mm 
c)
nm
d)
cm
62.
The units for nanometers are
a)
µm
b)
mm 
c)
nm
d)
cm
63.
1µm = 
a)
1 x10 -12mm
b)
1 x 10-9mm
c)
1 x 10-6mm
d)
1 x 10-3mm
64.
1µm = 
a)
1 x10 -3m
b)
1 x10 -6m
c)
1 x10 -9m
d)
1 x10 -12m
65.
Fungal cells are 
a)
prokaryotic
b)
eukaryotic
66.
Do prokaryotic cells contain mitochondria?
a)
Yes 
b)
No
67.

A student observed palisade cells using a microscope. The microscope had four objective lenses, each with a different magnification. Which objective lens should the student use first?

a)

×4 magnification

b)

×10 magnification

c)

×40 magnification

d)

×100 magnification

68.

The figure shows a scale drawing of one type of cell in blood. Use the scale to determine the width of the cell.

a)

2 micrometres

b)

4 micrometres

c)

8 micrometres

d)

10 micrometres

69.

Diagram 1 shows the percentage concentration of oxygen in three cells, A, B and C. Oxygen can move from cell to cell. Into which cell, A, B or C, will oxygen move the fastest?

a)

A

b)

B

c)

C

70.

How does oxygen move into and out of cells?

a)

diffusion

b)

digestion

c)

photosynthesis

d)

osmosis

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