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Year 9 - Biology A

Total questions: 75

Worksheet time: 2hrs 16mins

Name
Class
Date
1.

Which type of cell is this?

a)

Animal

b)

Plant

c)

Bacterial

d)

Virus

2.

Which process involves the release of energy from food substances in all living cells?

a)

breathing

b)

nutrition

c)

respiration

d)

digestion

3.
This is a diagram of an animal cell. Which of the following is NOT found in an animal cell?
a)
Nucleus
b)
Mitochondria
c)
Cell wall 
d)
Cytoplasm
4.
This is Spirogyra which is a type of alga found in ponds. Name the green structures within the cytoplasm.
a)
Nucleus
b)
Mitochondria
c)
Chloroplasts
d)
Cytoplasm
5.
This is an image of a nucleus. What is the name of the chemical found inside the nucleus which contains the genetic code?
a)
RNA
b)
DNA
c)
CNA
d)
TNA
6.
Chlostridium botulinum are dangerous and produce a toxin which can be fatal. Which type of cell are they?
a)
Yeast
b)
Bacteria
c)
Animal
d)
Plant
7.
These structures are located in all plant and animal cells and contain DNA.
a)
Vacuoles
b)
Chloroplasts
c)
Ribosomes
d)
Chromosomes
8.
This is a picture of animal cells. Mitochondria are found in all plant and animal cells and provide...
a)
Energy 
b)
Life
c)
Food 
d)
Water
9.
All cells, including the bacteria shown here, contain ribosomes. What is the function of ribosomes?
a)
Provide energy from respiration
b)
Protein synthesis
c)
Photosynthesis
d)
Control cell activities
10.

What is a stem cell?

a)

a meristem

b)

a zygote

c)

a differentiated cell

d)

an unspecialised cell

11.

What occurs during stage 2 of the cell cycle?

a)

the number of sub-cellular structures increases

b)

the nucleus divides

c)

the DNA replicates

d)

the cell divides

12.

What is meant when you say that a cell has differentiated?

a)

cells have become enlarged

b)

cells have specialised to complete a particular function

c)

cells are unspecialised and can change to have any function

d)

cells have undergone cell division by mitosis

13.

A cell has four chromosomes.

During the cell cycle, how many chromosomes will the cell

have at the end of stage 1?

a)

one

b)

four

c)

two

d)

eight

14.

At which stage of life does mitosis occur at a slower rate than cell death?

a)

developing embryo

b)

childhood

c)

old age

d)

adulthood

15.
This organelle takes food and turns it into ENERGY for plant and animal cells.
a)
Chloroplast
b)
Mitochondria
c)
Lysosome
d)
Ribosome
16.
The site of photosynthesis
a)
ribosome
b)
mitochondria
c)
chloroplast
d)
nucleus
17.
Which organelle is only found in a plant cell? 
a)
nucleus
b)
chloroplast
c)
mitochondria
d)
cell membrane
18.
Directs all cell activities through the DNA located there.
a)
Lysosomes
b)
Nucleus
c)
ribosomes
d)
Mitochondria
19.
Where are proteins made?
a)
Golgi body
b)
Mitoichondria
c)
Chromosomes
d)
Ribosomes
20.
I am the outer most layer of an animal cell. What am I?
a)
cell wall
b)
nucleus
c)
cell membrane 
d)
cell skin
21.
A rigid layer that lies outside the cell's  membrane is...
a)
Cytoskeleton
b)
Cilia
c)
Cell Wall
d)
Flagella
22.
Chloroplasts carry out...
a)
Phagocytocis
b)
Phylocytosis
c)
Photosynthesis
d)
Respiration
23.
What tool do you use to view the cells?
a)
metric ruler
b)
centrifuge
c)
microscope
d)
pipette
24.
Which structures are found in every living cell?
a)
cell membrane and cytoplasm
b)
chloroplasts and mitochondria
c)
a cell wall and nucleus
d)
chloroplasts and cell wall
25.
Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
vacuole
26.
What is the function of the cell nucleus found in both plant and animal cells?
a)
to produce energy
b)
to control cell activity
c)
to remove waste products
d)
to allow molecules to enter the cell
27.
All cells need energy to function.  Which cell organelle is responsible for producing energy in the cell?
a)
chloroplasts
b)
mitochondria
c)
nucleus
d)
vacuoles
28.
What is the function of a cell wall?
a)
to protect and support the cell
b)
to perform different functions in each cell
c)
to prevent water from passing through it
d)
to prevent oxygen from entering the cell
29.
Cells with a nucleus and membrane-bound organelles are called ____________________.
a)
prokaryotes
b)
eukaryotes
c)
bacteria
d)
protists
30.
Identify this structure.
a)
cell wall
b)
cell membrane
c)
sap vacuole
d)
cytoplasm
31.
This specialized cell does not contain a nucleus to allow for transport of oxygen
a)
Nerve Cell
b)
Red Blood Cell
c)
White Blood Cell
d)
Palisade cell
32.
This cell sends one way chemical signals throughout the body. 
a)
Nerve Cell
b)
Red Blood Cell
c)
White Blood Cell
d)
Xylem
33.
This plant structure is designed to allow water to move up/out to rest of plant
a)
Xylem
b)
Pholem
c)
Roots
d)
Leaves
34.
This plant structure is designed to allow glucose to be transported throughout the entire plant. 
a)
Xylem
b)
Pholem
c)
Roots
d)
Leaves
35.
This cell is simple. Only genetic material, cytoplasm and ribosomes inside.
a)
Eukaryotic
b)
Prokaryotic
c)
Plant
d)
Animal
36.
This cell can swim to find the  female egg cell
a)
sperm
b)
ciliated cell
c)
red blood cell
d)
nerve cell
37.
Which of the following is a plant cell?
a)
A
b)
B
c)
C
d)
D
38.
What is the name of this specialised cell?
a)
nerve cell
b)
red blood cell
c)
root hair cell
d)
sperm cell
39.
What does a flagellum do?
a)
It helps the cell move.
b)
It helps the cell make protein.
c)
It stores water and energy for the cell to use later.
d)
I don't know, but it looks cool.  
40.

What distinguishes a plant cell from an animal cell? (How do you tell them apart) Hint: There's 3 ways (Check all 3)

a)

Central Vacuole

b)

Mitochondria

c)

Cell Wall

d)

Ribosomes

e)

Chloroplasts

41.
Stem cells can be obtained from
a)
embryos
b)
some adult tissues
c)
umbilical cord blood
d)
all of the above
42.
a microscope that uses a stream of electrons to form magnified images of objects
a)
Optical Microscope
b)
Electron Microscope
c)
Compound Microscope
d)
Simple Microscope
43.

What do all living organisms have in common?

a)

They all reproduce sexually.

b)

They are all made of cells.

c)

They all need blood to stay alive.

d)

They are all made from chlorophyll.

44.

The picture shows a piece of technology that has helped scientists.

Which of the following best explains how this piece of technology has helped scientists?

a)

It has helped scientists to see other planets.

b)

It has helped scientists to see other moons.

c)

It has helped scientists see very large objects.

d)

It has helped scientists see very small objects.

45.

Which of these pictures most likely shows a plant magnified under a microscope?

a)
b)
c)
d)
46.

Which is NOT something a scientist could observe using a microscope?

a)

yeast cells budding into new cells

b)

the organs of an organism

c)

a thin slice of onion tissue

d)

the cell walls of a plant leaf

47.

This picture shows human skin viewed with a magnifying glass.

Which picture shows what the skin would look like under a microscope?

a)
b)
c)
d)
48.

How many microns μm = 1 mm?

a)

1,000

b)

1,000,000

c)

10,000

d)

100,000

49.

To calculate magnification of an electron micrograph we use......

a)

magnification = image size x actual size

b)

magnification = image size ÷ actual size

c)

magnification = actual size ÷ field of view

d)

magnification = ocular lens x objective lens

50.

To calculate the image size of an electron micrograph if we use.....

a)

Image size = Actual size x Magnification

b)

Image size = Magnification ÷ Actual size

c)

Image size = Actual size ÷ magnification

d)

Image size = Magnification x Actual size

51.

Josie measured the scale bar image to be 80 mm. What is the Magnification of this electron micrograph?

I = AM

a)

160X

b)

0.00625 X

c)

0.16X

d)

25,000X

52.
If a bacteria image measures 450 mm and the magnification is 15,000x, what is the actual size of the bacteria?
a)
30 µm
b)
0.3 µm
c)
300 µm
d)
3,000 µm
53.

Serena measured the image of one of the bacterial cells to be 32 mm. If the magnification of the image is 8,000X, what is the actual size of the bacterial cell?

a)

4 μm

b)

0.004 μm

c)

256,000 μm

d)

0.25 μm

54.

What steps should Burt use follow to calculate the actual size of each bacterial cell?

a)

Step 1: Calculate the magnification by measuring the scale bar image ÷ actual size

Step 2: Measure image of bacterial cell ÷ magnification

b)

Step 1: Calculate the magnification by measuring the scale bar image x actual size

Step 2: Measure image of bacterial cell ÷ magnification

c)

Step 1: Measure the image of the bacterial cell

Step 2: Divide the image size by the scale bar size

d)

He can't, it is impossible to calculate

55.

The scale bar of measures 3 mm but its actual size is 50 nm. What is the magnification of this image?

Remember: 1 mm = 1,000,000 nm

a)

60,000X

b)

60X

c)

600X

d)

6,000X

56.

Why do we not use light microscopes to see things as small as viruses?

a)

We cannot get enough light through the lenses to be able to see it

b)

Viruses are too big to be seen with a light microscope

c)

Electron microscopes are cheaper to use

d)

Light microscopes don't let us see in color

57.

How would we calculate magnification of these images?

a)

Calculate Field of View (FOV)

b)

Measure the images with a ruler then multiply by 1,000

c)

Look at the scale bar and see what magnification it says

d)

Measure the scale bar with a ruler and use the I=AM formula

58.
Name this part.
a)
base
b)
diaphragm
c)
ocular lens
d)
arm
59.
Name this part.
a)
base
b)
arm
c)
objectives
d)
body tube
60.
Name this part.
a)
fine focus adjustment
b)
coarse focus adjustment
c)
diaphragm
d)
stage
61.
Name this part.
a)
fine focus adjustment
b)
coarse focus adjustment
c)
revolving nosepiece
d)
diaphragm
62.
Name this part.
a)
diaphragm
b)
power source
c)
body tube
d)
light source
63.
Name this part.
a)
coarse focus adjustment
b)
diaphragm
c)
objectives
d)
eyepiece
64.
Name this part.
a)
power switch
b)
light source
c)
ocular lens
d)
stage clips
65.
Name this part.
a)
power switch
b)
stage clips
c)
diaphragm
d)
stage
66.
Name this part.
a)
stage clips
b)
base
c)
stage
d)
body tube
67.
Find the total magnification: 
Eyepiece = 10X 
Objective lens = 55X  
a)
10x
b)
55x
c)
65x
d)
550x
68.
You should always carry the microscope by the
a)
arm and base
b)
arm and body tube
c)
arm only
d)
the objectives
69.
What process does a multi-cellular organism use to replace its damaged body cells?
a)
mitosis
b)
meiosis
c)
replication
d)
transcription
70.
Which of these lists presents the stages of the cell cycle in the correct order?
a)
interphase, mitosis, cytokinesis
b)
cytokinesis, mitosis, interphase
c)
mitosis, interphase, cytokinesis
d)
interphase, cytokinesis, mitosis
71.

At the end of Mitosis, how many cells are there?

a)

1

b)

2

c)

3

d)

4

72.

Where does Mitosis take place?

a)

where growth and repair are happening

b)

in your hair cells only

c)

in your blood cells only

73.

How many chromosomes are normally found in human body cells?

a)

46

b)

23

c)

26

d)

44

74.

In which part of the body would the rate of mitosis

be happening the fastest?

a)

the brain

b)

the skin

c)

the spinal cord

d)

the eye

75.

Which of these are smaller, simpler and contain bacteria cells?

a)

Eukaryotes

b)

Prokaryotes

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