5479831
Descrição
Quiz por ahidalgo.maldona, atualizado more than 1 year ago
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Criado por ahidalgo.maldona
mais de 8 anos atrás
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Questão 1
Questão
Which pair of features is found in plant cells but not in animal cells?
Responda
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cell membrane / cell sap
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cell sap / cell wall
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cell wall / nucleus
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nucleus / cell membrane
Questão 2
Questão
The diagram shows a small part of a plant cell greatly magnified.
Which part controls what enters and leaves the cell?
Responda
-
A
-
B
-
C
-
D
Questão 3
Questão
When an enzyme molecule has catalysed a chemical reaction in a cell, what happens to it?
Responda
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It acts as a catalyst again.
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It is denatured.
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It is digested.
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It is used up by the reaction.
Questão 4
Questão
There are four stages in testing a leaf for starch.
1 soften in hot water
2 stain with iodine
3 boil in alcohol
4 boil in water
What is the correct order for these stages?
Responda
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1 / 2 / 3 / 4
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1 / 4 / 3 / 2
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3/ 1/ 2/ 4
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4/ 3/ 1/ 2
Questão 5
Questão
The diagram shows some cells in a leaf of a green plant.
In which layer of cells does most photosynthesis occur?
Responda
-
A
-
B
-
C
-
D
Questão 6
Questão
The diagram shows a section through a human tooth.
Which part is made of the hardest material?
Responda
-
A
-
B
-
C
-
D
Questão 7
Questão
The pie-charts show the compositions of four different foods.
Which food contains the most energy?
Responda
-
A
-
B
-
C
-
D
Questão 8
Questão
The diagram shows apparatus that can be used to demonstrate that the air breathed out by a
person contains more carbon dioxide than the air breathed in.
The person breathes in and out at X.
Where does air enter and leave the apparatus?
Responda
-
air enters at (Y) air leaves at (Y)
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air enters at (Y) air leaves at (Z)
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air enters at (Z) air leaves at (Y)
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air enters at (Z) air leaves at (Z)
Questão 9
Questão
Which cells destroy harmful microorganisms in the blood?
Responda
-
goblet cells
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platelets
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red blood cells
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white blood cells
Questão 10
Questão
The diagram shows part of the human circulatory system.
Which structure carries oxygenated blood?
Responda
-
A
-
B
-
C
-
D
Questão 11
Questão
The drawing shows a plant in a container of water. There is a layer of oil on top of the water that
stops the water evaporating. The apparatus weighs 300 g.
After two hours it weighs 296 g.
What is the rate of transpiration?
Responda
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150 g water / hour
-
148 g water / hour
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4 g water / hour
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2 g water / hour
Questão 12
Questão
Which organ releases insulin when the blood sugar level is too high?
Responda
-
kidney
-
liver
-
pancreas
-
stomach
Questão 13
Questão
The diagram shows a section through a flower
Where do the following occur?
Responda
-
pollination 1 fertilisation 2
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pollination 2 fertilisation 4
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pollination 3 fertilisation 1
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pollination 4 fertilisation 3
Questão 14
Questão
Which process takes place when a sperm joins with an ovum?
Responda
-
fertilisation
-
intercourse
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menstruation
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sterilisation
Questão 15
Questão
Which diagrams show the bonding in the molecules of nitrogen and ethene?
Responda
Questão 16
Questão
The reaction of zinc and sulphur to form zinc sulphide is exothermic.
Which information in the table is correct?
Responda
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A
-
B
-
C
-
D
Questão 17
Questão
Which substance is an ionic compound?
Responda
-
A
-
B
-
C
-
D
Questão 18
Questão
Bromine is in the same group of the Periodic Table as chlorine.
What are the colour and formula of hydrobromic acid likely to be?
Responda
-
A
-
B
-
C
-
D
Questão 19
Questão
Which equation shows an insoluble base reacting with an acid?
Responda
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barium chloride + sulphuric acid → barium sulphate + hydrochloric acid
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magnesium oxide + hydrochloric acid → magnesium chloride + water
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sodium carbonate + hydrochloric acid → sodium chloride + water + carbon dioxide
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zinc + sulphuric acid → zinc sulphate + hydrogen
Questão 20
Questão
Flame tests are carried out on calcium chloride and copper (II) chloride.
What are the colours of the flames?
Responda
Questão 21
Questão
In an experiment, 100 cm3 of dry air are passed over heated copper turnings until there is no
further change in volume (at r.t.p.).
What volume of gas remains?
Responda
-
89 cm3
-
79 cm3
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21 cm3
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11 cm3
Questão 22
Questão
A mixture of copper, magnesium and zinc is added to an excess of dilute sulphuric acid. The
resulting mixture is then filtered.
What is the solid left behind?
Responda
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copper and magnesium
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copper only
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magnesium and zinc
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zinc only
Questão 23
Questão
Which statement best describes how and why drinking water is sterilised?
Responda
Questão 24
Questão
In which experiment does the metal act as a catalyst?
Responda
Questão 25
Questão
The diagram shows an experiment to investigate the effect of heat on potassium nitrate.
The glowing splint bursts into flame.
What happens to the potassium nitrate when it is heated?
Responda
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type of reaction = combustion gas produced = hydrogen
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type of reaction = combustion gas produced = oxygen
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type of reaction = thermal decomposition gas produced = hydrogen
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type of reaction = thermal decomposition gas produced = oxygen
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