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Y9 Bio & Chem

Total questions: 160

Worksheet time: 3hrs 40mins

Name
Class
Date
1.

As a medium where chemical processes occur.

a)

cell wall

b)

vacuole

c)

cytoplasm

d)

chloroplast

2.

Provides support and helps protect the cell, and gives a fixed shape to the cell.

a)

cell wall

b)

vacuole

c)

cytoplasm

d)

chloroplast

3.
Why do plants wilt?
a)
low turgor pressure
b)
high turgor pressure
c)
too much water
d)
no cell membrane
4.

This plant will most likely be _______________.

a)

Limp or wilted

b)

stiff and rigid

5.

Which image represents turgor pressure?

a)

A

b)

B

c)

C

d)

D

6.

Which plant would be wilted or limp?

a)

A

b)

B

7.

What happens to a plant cell when it is placed in a solution with a high water concentration?

a)

The cell swells up and bursts.

b)

The cell shrivels up.

c)

The cell becomes plasmolysed.

d)

The cell becomes turgid.

8.

What happens to an animal cell when it is placed in a solution with a low water concentration?

a)

The cell swells up and bursts.

b)

The cell shrivels up.

c)

The cell becomes plasmolysed.

d)

The cell becomes turgid.

9.

What happens to an animal cell when it is placed in a solution with a high water concentration?

a)

The cell swells up and bursts.

b)

The cell shrivels up.

c)

The cell becomes plasmolysed.

d)

The cell becomes turgid.

10.
The cell below is in a _________ solution.
a)
Hypotonic
b)
Hypertonic
c)
Isotonic
11.
Osmosis
a)
diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
b)
the diffusion of particles from an area of high concentration to an area of low concentration
c)
diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
d)
the diffusion of particles from an area of low concentration to an area of high concentration
12.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
13.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
14.
Ideally, your cells should be in a(n) _______ solution
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Cola
15.
In the given scenario what will happen?  An egg is placed in pure water for 48 hours.
a)
The egg will gain water and swell.
b)
Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
c)
The egg will lose water and shrink.
16.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
17.

small compartment enclosed by a membrane formed during transport of material during endo + exocytosis

a)

vesicles

b)

large vacuole

c)

mitochondria

d)

lysosome

18.

Active transport is the movement of large materials across a cell membrane from ______ to ______ concentration

a)

high to low

b)

low to high

c)

high to high

d)

low to low

19.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
20.
A person should never drink salty water because their cells would
a)
shrink
b)
expand
21.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
22.
A person would never have pure water put into their veins in a hospital because their cells would...
a)
Shrink/Dehydrate
b)
Expand
23.
What is the definition of  Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration to a area of low concentration 
24.
Where is there a low concentration of perfume?
a)
in the bottle
b)
on the hand
c)
in the room
d)
in the top
25.
Where is there a high concentration of water?
a)
in the flower
b)
cannot be determined by picture.
c)
in the vase
d)
in the leaves
26.
The diffusion of water through a semi-permeable membrane is called?
a)
Osmosis
b)
Cell wall
c)
Diffusion
d)
Respiration
27.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
28.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
29.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
30.
Where is there a low concentration of dye?
a)
at the bottom of cup
b)
in the color
c)
at the top of cup 
d)
no concenteraion gradient
31.

This red blood cell swell and burst in a ....solution

a)

hypotonic

b)

isotonic

c)

elektronic

d)

hypertonic

32.

This plasmolysis condition happen if we put plant cell in ....solution

a)

hypotonic

b)

isotonic

c)

elektronic

d)

hypertonic

33.

What is the other term for "diffusion of water"

a)

diffusion

b)

osmosis

c)

active transport

d)

passive transport

34.

What will be happen?

a)

water molecule move from solution 1 to solution 2 by osmosis

b)

water molecule move from solution 2 to solution 1 by osmosis

c)

water molecule move from solution 1 to solution 2 by active transport

d)

Sugar molecule move from solution 1 to solution 2 by osmosis

35.

Which one is the definition of active transport?

a)

movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

b)

passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

c)

net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

d)

net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

36.

Which one is the definition of Osmosis ?

a)

movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

b)

passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

c)

net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

d)

net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

37.

Which one is the definition of Diffusion ?

a)

movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

b)

passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

c)

net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

d)

net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

38.

The diagram shows an experiment using a potato. Which shows the result of the experiment after 24 hours?

a)
b)
c)
d)
39.

Which of the following is a sample of osmosis?

a)

plant root absorbing mineral ions from the soil

b)

the scent from a bunch of flowers spreads throughout a room

c)

carbon dioxide move from air into leaves through stomata.

d)

plant root absorbing water from the soil

40.

Which of the following is a sample of active transport?

a)

movement of oxygen from alveoli into red blood cell

b)

movement of water across cell membrane

c)

plant root absorbing mineral ions from the soil

d)

uptake of water by the root hair of the plant

41.

Active transport is movement of particles through the cell membrane from a region of ...1... to a region of ...2... using energy in the form of ...3...

a)

1: lower concentration, 2: higher concentration, 3: NADPH

b)

1: higher concentration, 2: lower concentration, 3: NADPH

c)

1: higher concentration, 2: lower concentration, 3: ATP

d)

1: lower concentration, 2: higher concentration, 3: ATP

42.

The diagram shows two chambers with different concentration of molecules separated by a selectively permeable membrane. Predict what will happen to the water molecules ?

a)

move from B to A due to diffusion

b)

move from B to A due to osmosis

c)

move from B to A due to active transport

d)

move from A to B due to osmosis

43.

Osmosis is the passage of ...1... molecules from a region of their higher concentration to a region of their lower concentration through a ... 2 ... permeable membrane

a)

1: sugar, 2: completely

b)

1: sugar, 2: partially

c)

1: water, 2: completely

d)

1: water, 2: partially

44.

Two Erlenmeyer flasks are arranged as the diagram below. After several minutes, all of Erlenmeyer flasks are filled up by glucose solution. Why did it happen?

a)

It happens because of diffusion

b)

It happens because of osmosis

c)

It happens because of gravitation force

d)

It happens because of shaking hands

45.

Diffusion is the net movement of molecule from a region of ...1...to region of ...2....

a)

1: lower concentration, 2: higher concentration

b)

1: higher concentration, 2: lower concentration

c)

1: lower concentration, 2: lower concentration

d)

1: higher concentration, 2: higher concentration

46.

All matter is made of extremely tiny particles called___________________

a)
atoms
b)
bits
c)
dust
d)
molecules
47.

All matter is made of extremely tiny particles called___________________

a)
atoms
b)
bits
c)
dust
d)
molecules
48.
The center of an atom is called the______________.
a)
middle
b)
top
c)
nucleus
d)
electron
49.

Atomic nucleus is made up of ____________

a)
protons and electrons
b)

protons only

c)

neutrons only

d)

protons and neutrons

50.

Proton number is

a)

Number of particles in an atomic nucleus

b)

Number of protons in an atomic nucleus

c)

Number of positive charge on ion

d)

Number of protons and neutron in an atomic nucleus

51.

Proton number also known as ____________

a)

Nucleon number

b)

Atomic symbol

c)

Atomic mass

d)

Atomic number

52.

Define nucleon number.

a)

Number of neutrons in an atomic nucleus

b)

Number of nucleons in an atomic nucleus

c)

Number of protons and neutrons around a nucleus

d)

Total number of protons and neutrons in an atomic nucleus

53.

Isotopes are atoms of the same element that have same number of protons but different _________

a)

number of electrons

b)

number of neutrons

c)

atomic number

d)

neutron number

54.
If an atom has 5 protons and 3 neutrons, what is its atomic number?
a)
5
b)
2
c)
8
d)

3

55.
What is the atomic mass of an atom?
a)
number of protons in the atom
b)
number of protons and neutrons in the nucleus
c)
how much it weighs
d)
number of electrons in the atom
56.

Which subatomic particle of an atom has a positive charge?

a)
proton
b)
neutron
c)
electron
d)
nucleus
57.
Neutrons have no charge at all.
a)
true
b)
false
58.
Can an element be broken down into simpler substances and keep the properties of the element?
a)
yes
b)
no
59.

The element Lithium has 3 protons and 4 neutrons in its nucleus. Its nucleon number is __________.

a)

3

b)

4

c)

7

d)

1

60.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
61.

What is the number of neutrons for the element?

a)

29

b)

34

c)

63

d)

92

62.

One Z atom has 10 protons, 10 electrons and 15 neutrons. What is its atomic mass?

a)
20
b)
10
c)
5
d)
25
63.
Which subatomic particle has a neutral or no charge?
a)
Proton
b)
Electron
c)
Neutron
64.

Which subatomic particle carries negative charge?

a)
Proton
b)
Electron
c)
Neutron
65.

Oxygen-18 (proton number = 8) contains _________neutrons

a)

8

b)

26

c)

10

d)

18

66.
The relative atomic mass of an atom can be found by comparing the mass of the atom to the mass of
a)
one atom of hydrogen-2
b)
one atom of carbon-12
c)
one atom of carbon-13
d)
one atom of carbon-14
67.
Name the separation method that causes wet clothes on a clothes line to dry
a)
Chromatography
b)
Filtration
c)
Distillation
d)
Evaporation
68.
What is the boiling point of water?
a)
0oC
b)
100oC
c)
80oC
d)
95oC
69.

How can we separate an insoluble solid from a liquid?

a)

chromatography

b)

evaporation

c)

filtration

d)

condensation

70.
The clear liquid which passes through the filter paper is called
a)
filt
b)
filter
c)
filtrate
d)
filtration
71.
Which one of the following is NOT an example of a separation technique?
a)
boiling an egg
b)
fishing net
c)
surgical mask
d)
 tea strainer
72.

Which one of the following is the name for separation technique in the picture below

a)

distillation

b)

filtration

c)

evaporation

d)

chromatography

73.
In the process of evaporation, which one of the following pieces of laboratory apparatus would NOT be used?
a)
evaporating basin
b)
filter funnel
c)
bunsen burner
d)
Wire gauze
74.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
 filter paper
c)
distillation apparatus
d)
chromatography paper
75.

Which separation technique is shown below

a)

Evaporation

b)

Simple Distillation

c)

Decantation

d)

Fractional Distilation

76.

Which separation technique is shown below

a)

using a magnet

b)

separating funnel

c)

Centrifuging

d)

Chromatography

77.

Which separation technique is shown below

a)

filtration

b)

crystallization

c)

sublimation

d)

evaporation

78.
This picture represents: 
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
79.

Which of the following is a disadvantage of evaporation?

a)

It always requires heat

b)

It cannot be used for insoluble solids

c)

All of the solute is recovered

d)

The solvent (water) is not recovered

80.
A solution that contains a large amount of solute is best described as 
a)
unsaturated
b)
concentrated
c)
dilute
d)
weak
81.
The diagram shows the apparatus for separating soil and water. What are the labelled parts?
a)
A = distillate, B = filtrate
b)
A = filtrate, B = residue
c)
A = residue, B = filtrate
d)
A = residue, B = distillate
82.
No matter what you do, sand will not dissolve in water, sand is _________ ?
a)
dissolved
b)
soluble
c)
insoluble
d)
aqueous
83.
Evaporation is a process that removes a...
a)
solvent (liquid part of solution)
b)
solute (material that dissolves in the solvent)
c)
distillate (liquid collected after a solution is distilled)
d)
impurity
84.
Filtration can be used to separate...
a)
an insoluble solid from a solution
b)
a soluble solid from a solution
c)
a dissolved solid from a solution
85.
An example of a mixture is 
a)
Water and oil
b)
Cereal and Milk 
c)
Sand and water 
d)
All of the above
86.

You've got copper sulfate pentahydrate dissolved in water and you want to get rid of the water and get crystals. What's the suitable separation technique?

a)

sieving

b)

decanting

c)

crystallization

d)

distillation

87.

Between which points is the temperature of the substance remaining constant?

a)

A-B only

b)

A-B, C-D, and E-F

c)

B-C only

d)

B-C and D-E

88.

__________ show the change in state of matter as heat is added.

a)

Phase diagrams

b)

Heating curves

c)

Density graphs

d)

Temperature plots

89.

The melting point of the sample is

a)

-60 ºC

b)

20 ºC

c)

60 ºC

d)

100 ºC

90.

Which letter indicates where water is in both the solid and liquid phase at the same time?

a)

A

b)

B

c)

C

d)

D

e)

E

91.

A measure of the average kinetic energy of the particles in an object is called

a)

Heat

b)

Temperature

c)

Kinetic energy

d)

Enthalpy

92.

In which region(s) does temperature increase?

a)

Region C only

b)

Regions B and D

c)

Regions A, C, and E

d)

Regions A and B

93.

In which region(s) of the heating curve would water be a liquid and a gas at the same time?

a)

A

b)

B

c)

C

d)

D

e)

E

94.

The energy transferred between objects that are at different temperatures is called

a)

Heat

b)

Temperature

c)

Energy

d)

Friction

95.

Describe the substance at letter A.

a)

Solid

b)

Liquid

c)

Melting

d)

Evaporating

96.

How many states of matter are present during line segment BC?

a)

One

b)

Two

c)

Three

d)

Depends on the temperature

97.

In a heating curve, diagonal lines indicate temperature is __________, while flat lines indicate temperature is __________.

a)

Constant, changing

b)

Changing, constant

98.

At which letter is the substance changing its state of matter?

a)

A only

b)

A, C, and E

c)

D and E

d)

B and D

99.

NaCl was heated starting at an initial temperature of 0°C. The heating curve is shown in the picture. What is the melting point of this substance?

a)

0°C

b)

801°C

c)

1000°C

d)

1465°C

100.

Heat __________ depend on the amount of substance, while temperature __________.

a)

Does not, does

b)

Does, does not

101.

Describe the substance at letters D.

a)

Gas

b)

Liquid

c)

Melting

d)

Evaporating

102.

At higher temperatures

a)

Particles in an object move slower

b)

Particles in an object move faster

c)

Particles move at the same speed as lower temperature

103.
What state(s) of matter are present at D-E?
a)
Solid-liquid
b)
Liquid
c)
Liquid-gas
d)
Gas-Solid
104.
True or false: melting and freezing occur at the same temperature!
a)
True
b)
False
c)
I don't know
105.
A substance's heating curve is shown in the graph.  What is its boiling point?
a)
100 C
b)
60 C
c)
80 C
d)
20 C
106.

The melting point of the sample is

a)

-60 ºC

b)

-100 ºC

c)

60 ºC

d)

100 ºC

107.
In which region(s) does temperature remain constant?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
108.
In which region(s) does temperature increase?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
109.
In which region(s) of the graph would the substance be a solid only?
a)
Region 1
b)
Region 2
c)
Region 3
d)
Region 4
110.
In which region(s) of the graph would the substance be a gas only?
a)
Region 2
b)
Region 3
c)
Region 4
d)
Region 5
111.

What state of matter/phase change is occurring during line segment D on the graph?

a)

Gas

b)

Condensation

c)

Liquid

d)

Freezing

e)

Solid

112.

At what temperature does the substance in the graph condense?

a)

140°C

b)

100°C

c)

40°C

d)

0°C

113.

At what temperature does the substance in the graph freeze?

a)

140°C

b)

100°C

c)

40°C

d)

0°C

114.

At what temperature does the substance in the graph melt?

a)

0°C

b)

1500°C

c)

2800°C

d)

3500°C

115.

At what temperature does the substance in the graph boil/vaporize?

a)

0°C

b)

1500°C

c)

2800°C

d)

3500°C

116.
What is matter?
a)
Anything that has mass and volume
b)
The shape of an object
c)
How much an object weighs
d)
The pull of objects on one another
117.
When ice melts, it becomes a 
a)
solid
b)
liquid
c)
gas
d)
plasma
118.
A student places a pan of water on a stove. What happens to some of the water as it is heated to a boil?
a)
It gets destroyed.
b)
It gets new atomic bonds
c)
It becomes solid.
d)
It becomes a gas.
119.
What are the three states of matter?
a)
texture, volume, mass
b)
density, volume, mass
c)
solid, liquid, gas
d)
density, color, volume
120.

This ice in this glass is ___________.

a)

Freezing

b)

Melting

c)

Evaporating

d)

Liquidizing

121.

This picture shows liquid water changing into a ______.

a)

Solid

b)

Liquid

c)

Gas

122.

The picture is an example of what state of matter?

a)

Solid

b)

liquid

c)

gas

d)

freezing

123.

The heat from the sun is causing the water to _________.

a)

evaporate

b)

condensate

c)

boil

d)

freeze

124.

The picture is an example of _____________.

a)

freezing

b)

evaporation

c)

condensation

d)

melting

125.

What causes a solid to turn into a gas?

a)

Cold temperatures

b)

Heat

c)

Pressure

126.

This is an example of ___________.

a)

evaporation

b)

Melting

c)

Freezing

d)

Condensation

127.

This heat is causing the water to _____.

a)

freeze

b)

boil

c)

melt

d)

condensate

128.
What term describes a liquid changing to a solid?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
129.
The following are examples of solids except
a)
syrup
b)
text book
c)
desk
d)
lunchbox
130.
All of these are examples of gases except
a)
oxygen
b)
carbon dioxide
c)
helium
d)
shampoo
131.
What do all liquids have in common?
a)
They are clear
b)
They can be poured
c)
They are sticky
d)
You can drink them
132.
What state of matter does this picture show?
a)
Liquid
b)
Gas
c)
Solid
d)
Matter
133.
What are the three stages of the water cycle?
a)
Evaporation, Condensation, Precipitation
b)
Solid, Liquid, Gas
c)
Evaporation, Precipitation, Sleet
d)
Clouds, Water, Precipitation
134.
What stage of the water cycle does this picture show?
a)
Condensation 
b)
Molecules
c)
Evaporation
d)
Precipitation
135.
Water can become all 3 states of matter. 
a)
True
b)
False
136.

What is the centre of an atom called?

a)

nucleus

b)

core

c)

atomic centre

137.

Which two sub-atomic particles are in the nucleus of an atom?

a)

protons

b)

electrons

c)

neutrons

138.

Why does an atom have no overall charge?

a)

An atom has an equal number of positive electrons and negative protons.

b)

An atom has an equal number of positive protons and negative electrons.

c)

There are no charged sub-atomic particles in an atom to give it an overall charge.

139.

Which piece of information from the periodic table can you use to work out the number of electrons in an atom?

a)

relative atomic mass

b)

atomic symbol

c)

element name

d)

atomic (proton) number

140.

How many electrons are there in a sodium atom?

a)

11

b)

23

c)

12

d)

34

141.

How many electrons are there in a phosphorus atom?

a)

15

b)

31

c)

16

d)

47

142.

How many electrons are there in the lowest energy level (first shell) of a sodium atom?

a)

2

b)

8

c)

11

d)

1

143.

How many electrons are there in the second energy level (second shell) of an aluminium atom?

a)

13

b)

2

c)

3

d)

8

144.

There are 8 electrons in the second energy level of an argon atom. How many electrons are there in the third energy level (third shell) of an argon atom?

a)

12

b)

8

c)

2

145.

True of false?

The electrons in an atom occupy the lowest available energy level.

a)

true

b)

false

146.

An oxygen atom has 8 electrons. What is the electronic structure of oxygen?

a)

2,6

b)

26

c)

2/6

d)

2.6

147.

What is the electronic structure of chlorine?

a)

2,8,7

b)

2,8,5,2

c)

2/8/7

d)

2.8.7

148.

What is the electronic structure of fluorine?

a)

2,7

b)

2,5,2

c)

2/7

d)

2.7

149.

A magnesium atom has 12 electrons. What is the electronic structure of magnesium?

a)

2,8,2

b)

2,10

c)

2,6,4

d)

4,6,2,

150.

A nitrogen atom has 7 electrons. What is the electronic structure of nitrogen?

a)

2,5

b)

7

c)

5,2

d)

3,4

151.

What is the electronic structure of boron?

a)

2,3

b)

5

c)

23

d)

3,2

152.

What is the electronic structure of chlorine?

a)

2,8,7

b)

2,7,8

c)

17

d)

278

153.

A carbon atom has 6 electrons. What is the electronic structure of carbon?

a)

2,4

b)

24

c)

2 4

d)

4,2

154.

What is the electronic structure of sulfur?

a)

2,8,6

b)

2,6,8

c)

16,32

d)

4,6,6

155.

What is the electronic structure of neon?

a)

2,8

b)

2,10

c)

2 8

d)

28

156.

What is the electronic structure of silicon?

a)

2,8,4

b)

(2,8,4.

c)

2,12

d)

2,4,8

157.

How many electrons are there in the highest energy level of a beryllium atom?

a)

2

b)

4

c)

9

d)

2,2

158.

How many electrons are there in the highest energy level of a hydrogen atom?

a)

1

b)

2

159.

How many electrons are there in the highest energy level of a potassium atom?

a)

1

b)

19

c)

8

d)

7

160.

How many electrons are there in the highest energy level of a calcium atom?

a)

2

b)

8

c)

10

d)

6

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