Subject knowledge test: Science
     

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Functioning of organisms: green plants

Q1

In the diagram of the flower section shown, label the parts a to h with the following words:
anther, sepal, receptacle, style, petal, ovary with ovules, filament, stigma.

a)
b)
c)
d)
e)
f)
g)
h)
Q2

The male reproductive organs or stamen of a flowering plant includes:

a) petals, sepals and a receptacle
b) the stigma, style and ovary
c) the anther and filament

Answer a, b or c:

Q3

Green plants are capable of making their own food in any of their green tissues by photosynthesis. Living organisms capable of doing this are referred to as:

a) heterotrophs
b) autotrophs
c) rhizomes

Answer a, b or c:

Q4

Plants are made from cells. Match the two specialised cell types below with the letter of their correct function.
Answer a, b, c, d or e:

i) xylem cells
ii) palisade cells

a) form vessels which conduct simple sugars in sap.
b) carry out photosynthesis in leaves.
c) take up water and dissolved minerals from soil.
d) form vessels which conduct water and dissolved minerals.
e) allow various gases to move into and out of leaves.

Q5

The two classes of flowering plants, the most advanced and dominant forms of vegetation on Earth, are commonly referred to as:

a) monocots and dicots
b) prokaryotes and eukaryotes
c) auxins and gibberellins

Answer a, b or c:


Functioning of organisms: humans and other animals

Q6

How many bones would you expect to find in the skeleton of an average human adult?

a) 103
b) 206
c) 602

Answer a, b or c:

Q7

In this diagram of the human circulatory system, label the parts A to J with the following words:
aorta, right ventricle, left ventricle, pulmonary artery, left atrium, right atrium, pulmonary vein, superior vena cava, inferior vena cava, pulmonary circuit

a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
Q8

In this diagram of the generalised human cell, label the parts A to E with the following words:
nucleus, cytoplasm, mitochondrion, cell membrane, ribosome.

a)
b)
c)
d)
e)
Q9

The four main types of pathogen that cause disease in humans are bacteria, viruses, fungi and protoctista. Match the pathogens to the types of disease they cause:
Answer a, b, c or d.

i) bacteria
ii) viruses
iii) fungi
iv) protoctista

a) amoebic dysentery, sleeping sickness, malaria.
b) sore throats, tuberculosis, typhoid, cholera.
c) athlete's foot, ringworm, thrush.
d) colds, flu, measles, mumps, polio.


Continuity and change

Q10

Rearrange these structures in order of size, from smallest (a) to largest (d):
cell, gene, nucleus, chromosome.

a)
b)
c)
d)
Q11

How many chromosomes would you expect to find in the typical sex cells or gametes of a healthy human male or female?

a) 46
b) 72
c) 23

Answer a, b or c:


Ecosystems

Q12

Match the following living organisms with their correct position in a simple food chain:
Answer a, b or c.

i) grass
ii) rabbit
iii) fox

a) primary consumer (herbivore).
b) producer.
c) secondary consumer (carnivore).


Materials and their properties

Q13

In this diagram of an atom, label the parts A to C with the following words:
electron, proton, neutron.

a)
b)
c)
Q14

Neutrons and protons make up the nucleus of almost all atoms.

True
False

Q15

Identify each of the following materials as an element, a compound or a mixture.

a) Honey
b) Pure water
c) Copper
Q16

Answer true or false.

 
True
False
Physical changes are usually reversible.
Physical changes produce new substances.
Chemical changes are usually irreversible.
Chemical changes cause changes in the arrangement of the particles in a substance.
Q17

Look at the following statements about the change of state of a material from a solid to a liquid. Answer true or false.

 
True
False
a) The particles move faster.
b) The particles change shape.
c) The particles lose mass.
d) The particles move further apart.
e) The particles gain mass.
f) The particles have more energy.
g) The particles are more tightly bonded.
Q18

Exothermic reactions occur in chemical reactions when the creation of new bonds required less energy to form than the bonds that were broken. Endothermic reactions occur in chemical reactions when the creation of new bonds requires more energy than the bonds that were broken. For each of the following reactions, answer 'exothermic' or 'endothermic'.

 
Exothermic
Endothermic
a) Bicarbonate of soda and vinegar becomes cooler.
b) Plaster of Paris and water becomes hotter.
c) Nuclear fission.
d) Obtaining iron from iron ore.
Q19

You smell air freshener almost as soon as it has been sprayed in a room because:

a) the molecules of the air freshener travel faster than molecules of the air.
b) the molecules of the air freshener spread between the molecules of the air.
c) the molecules of the air freshener are smaller than the molecules of the air.

Answer a, b or c:


Electricity and magnetism

Q20

In this diagram of circuit symbols, label the components A to G with the following words:
motor, switch, cell, resistor, buzzer, filament lamp or bulb, battery.

a)
b)
c)
d)
e)
f)
g)
Q21

Under normal circumstances, which of the following materials are good electrical conductors, poor electrical conductors, or insulators? Answer 'good', 'poor', or 'insulator'.

 
Good
Poor
Insulator
a) copper
b) water
c) rubber
d) aluminium
e) gold
f) wood
g) skin
h) air

Energy

Q22

Energy exists in many forms. Match the following forms of energy to the letter of its best description:
Answer a, b, c, d, e, f, g or h.

i) kinetic energy
ii) light energy
iii) gravitational potential energy

a) the energy of vibrating objects.
b) the energy of position or height.
c) the energy of being stretched or compressed.
d) the energy of batteries.
e) the energy of hot objects.
f) the energy of electromagnetic radiation.
g) the energy of motion and movement.
h) the energy of food and fuels.

Q23

For every 100J of energy transferred to the filament lamp or bulb of a torch, 25J are changed or converted to light while 75J are changed or converted to heat. What is the efficiency of the torch? (Give your answer as a %.)

Answer: %

Q24

Identify the energy changes or conversions in the following diagram of a human at work by choosing from the following:
For each one, answer a, b, c, d, e or f.

i) kinetic to kinetic
ii) kinetic to heat
iii) electrical to heat and light:
iv) kinetic to sound:
v) kinetic to electrical
vi) chemical to heat and kinetic

Forces and motion

Q25

Examples of contact forces include:

a) pushes and pulls
b) twists and turns
c) all of the above

Answer a, b or c:

Q26

In what units are forces measured?

a) kilograms (kg)
b) newtons (N)
c) pascals (Pa)

Answer a, b or c:

Q27

The mass of an object remains the same wherever it is in the Universe. Mass is measured in kg. The weight of an object changes depending on where it is in the Universe. Weight is measured in N. The force of gravity on the surface of the Earth is about 10 N/kg. How much would a person of mass 90 kg weigh? Give your answer as XX N.

Answer: N

Q28

The mass of an object remains the same wherever it is in the Universe. Mass is measured in kg. The weight of an object changes depending on where it is in the Universe. Weight is measured in N. The force of gravity on the surface of the Moon is about 1.6 N/kg. How much would a person of mass 90 kg weigh? Give your answer as XX N.

Answer: N


Light

Q29

In this diagram of the human eye, label the parts A to K with the following words:
eyelid, pupil, aqueous humour, lens, optic nerve, vitreous humour, retina, cornea, sclera (white of eye), iris, ciliary muscle.

a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
Q30

Which of the following sources of light are primary and which are secondary?

 
Primary
Secondary
a) a torch
b) the Moon
c) a burning candle
d) the Sun
Q31

The primary colours of light are:

a) red, blue and yellow
b) red, blue and green
c) red, green and yellow

Answer a, b or c:

Q32

Match the following words with the letter of their correct description:
Answer a, b, c, d, e, f, g or h.

i) transparent
ii) translucent
iii) opaque

a) blocks light and images completely.
b) allows light to pass and objects to be seen clearly.
c) allows light to pass but objects appear blurred.


Sound

Q33

In this diagram of the human ear, label the parts a to m:
ear drum, the stirrup, pinna, outer ear, the hammer, auditory nerve, ear canal, Eustachian tube, middle ear, cochlea, inner ear, semi-circular canals, the anvil.

a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
Q34

Sounds generally travel faster in solids and liquids than in air.

True
False


The Earth and beyond

Q35

Match the following words to the correct letter of their best description:
Answer a, b, c, d, e or f.

i) Sun
ii) planets
iii) moons
iv) asteroids
v) comets
vi) meteroids

a) chunks of ice and other material often seen with a tail.
b) natural satellites which orbit planets.
c) a star (ball of hot, glowing gas).
d) lumps of rock often referred to as minor planets.
e) small particles of dust and rock fragments.
f) rocky and gassy objects which orbit the Sun.

Q36

Mercury, being nearest to the Sun, is the hottest planet.

True
False

Q37

The Solar System formed about 4.6 billion years ago.

True
False

Q38

The Earth orbits the Sun once every:
Answer a, b or c.

a) blue Moon
b) 24 hours
c) 365.25 days

Answer:

Q39

The Moon orbits the Earth about:
Answer a, b or c.

a) once every 24 hours
b) once a month
c) once a year

Answer: