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WorksheetsRevision C. Sci 5129
Total questions: 26
Worksheet time: 13mins
When a red stain is added to a culture containing both living and dead cells, only the dead cells
take up the stain.
Which structure prevents the stain entering the living cells?
cell membrane
cell wall
cytoplasm
vacuole
What causes water to enter plant roots from the soil?
Water concentrations in root hairs and the soil are equal.
Water concentrations in root hairs and xylem are equal.
Water concentration in root hairs is higher than in the soil.
Water concentration in root hairs is lower than in the soil.
Which graph shows how the activity (rate of reaction) of an enzyme-catalysed reaction in the
alimentary canal varies with temperature?
Where does most photosynthesis occur in a typical leaf?
epidermis
guard cells
palisade mesophyll
spongy mesophyll
In which regions of the alimentary canal does amylase break down starch?
mouth cavity and pancreas
mouth cavity and ileum
stomach and pancreas
stomach and ileum
What is transpiration?
absorption of water by root hairs
loss of water vapour from stomata
movement of water up through a plant
wilting
The following changes take place in an athlete’s body during a 100 m race.
Which of these changes occurs first?
increased availability of oxygen to muscles
increased breathing rate
increased carbon dioxide concentration in the blood
increased production of carbon dioxide by muscles
What will be the effect of increasing nitrate levels in rivers?
Animals will absorb the nitrates and make more protein.
Animals will absorb the nitrates and make more urea.
Plants will absorb the nitrates and make more protein.
Plants will absorb the nitrates and make more urea.
The diagram shows the reproductive system of a human female.
Where does fertilisation take place?
A
B
C
D
Chlorine consists of two naturally occurring isotopes, 35Cl and 37Cl.
These two isotopes have different....
arrangements of their electrons.
chemical properties.
numbers of neutrons.
numbers of protons.
Which dot and cross diagram is correct for ammonia?
When iron(II) chloride reacts with sodium hydroxide, iron(II) hydroxide and sodium chloride are produced.
What is the balanced equation for this reaction?
2FeCl2 + NaOH → 2Fe(OH)2 + NaCl
FeCl2 + 2NaOH → Fe(OH)2 + 2NaCl
FeCl2 + 2NaOH → 2Fe(OH)2 + NaCl
2FeCl2 + NaOH → Fe(OH)2 + 2NaCl
Which element forms an oxide that reacts with water to give an acidic solution?
aluminium
sodium
sulfur
zinc
Li, Na and K are in Group I of the Periodic Table.
Which statement about these elements is correct?
K will have the lowest melting point.
Li has the largest atomic radius.
Li will have the most vigorous reaction with water.
Na is denser than water.
Brass is an alloy used for ornaments and coins.
Which statement about brass is correct?
Brass is ......
a compound of copper and tin.
a compound of copper and zinc.
a mixture of copper and tin.
a mixture of copper and zinc.
The order of reactivity of some metals is shown.
Which reaction is possible based on this information?
copper + zinc oxide → copper(II) oxide + zinc
iron(III) oxide + lead → lead(II) oxide + iron
magnesium + zinc oxide → magnesium oxide + zinc
magnesium oxide + aluminium → magnesium + aluminium oxide
The global atmospheric concentration of carbon dioxide has increased in the last 200 years.
What could be causing this increase?
1 emissions from motor vehicles
2 photosynthesis
3 power stations using coal and oil
1, 2 and 3
1 and 2
1 and 3
2 and 3
How many elements are there in the compound ammonia?
2
3
4
5
Which graph represents the change in boiling point of the alkanes as their relative molecular
mass increases?
Which can be used to distinguish between ethane and ethene?
a lighted splint
aqueous bromine
limewater
Universal Indicator
What is the relationship between acceleration (a), force (F) and mass (m)?
a = F × m
a = F + m
a = F ÷ m
a = m ÷ F
A uniform beam is pivoted at its midpoint. An object is placed on the beam as shown.
Which force and position will balance the system?
20 N acting downwards, 40 cm to the right of the pivot
20 N acting upwards, 40 cm to the right of the pivot
50 N acting downwards, 10 cm to the left of the pivot
50 N acting upwards, 10 cm to the left of the pivot
A spring balance is calibrated to give readings in newtons.
The graph shows how the extension of the spring varies with the load.
A load causes the spring of the balance to extend by 3 cm.
What is the balance reading?
3 N
4 N
15 N
20 N
An electric motor lifts a weight of 8 N through a height of 5 m in 4 s.
What is the useful power developed?
2.5 W
6.4 W
10 W
40 W
The heat from the hot water in a metal radiator passes through the metal and then spreads around the room.
What are the main processes by which the heat is transferred?
A
B
C
D
A resistor in a circuit has a value of resistance of 3.0 Ω.
In 20 s, a charge of 10 C passes through the resistor.
What is the potential difference across the resistor?
0.67 V
1.5 V
6.0 V
30 V
