Module 7: Food Production and the Environment (specimen)
1) The function of a root hair is to
a) absorb light
b) attract insects
c) take in water
d) trap bacteria
2) A plant grows leaves for
a) making food
b) absorbing water
c) reproduction
d) holding it in the soil
3) Why does a leaf cell need chloroplasts?
a) to protect the cell
b) to absorb light energy
c) to carry genetic information
d) to store water
4) Which of these chemicals are used to kill weeds?
a) herbicide
b) insecticide
c) bactericide
d) fungicide
5) Soil in a wood is covered by decaying leaves
The leaves decay because
a) birds feed on them
b) squirrels make nests from them
c) microorganisms feed on them
d) spiders make webs over them
6) Potato peel will decay in a compost heap.
This will happen most quickly if the heap is
a) warm and moist
b) warm and dry
c) cold and dry
d) cold and moist
7) The diagram shows parts of one cell and leaf
Which part is also found in an animal cell?
a)
b)
c)
d)
8) The diagram shows a food chain
Which row of the table identifies a predator and a prey?
predator
prey
a)
caterpillar
oak leaf
b)
oak leaf
caterpillar
c)
thrush
caterpillar
d)
caterpillar
thrush
9) Pieces of cobalt chloride paper were placed on the upper and lower surfaces of a leaf as shown in the diagram.
The leaf was observed for 30 minutes.
What happened to the colour of the cobalt chloride paper?
a) It went pink on the upper surface first
b) It went pink on the lower surface first
c) It went pink on both surfaces at the same time
d) It did not go pink on either surface
10) Some pupils set up the apparatus shown below. They put both tubes in the light.
Which row of the table shows the process taking place in each tube?
a)
b)
c)
d)
11) Which of these takes water to a leaf?
a) phloem
b) root hairs
c) stomata
d) xylem
12) The diagram shows a potted plant on a balance.
The mass of the potted plant was recorded every 10 minutes.
The graph shows the mass over a number of hours.
During which period of time was transpiration fastest?
a)
b)
c)
d)
13) Plant hormones have commercial uses.
Which of these is not a commercial use of plant hormones?
a) developing fruits
b) killing weeds
c) rooting cuttings
d) pollinating flowers
14) Which of these is not a cause of deforestation?
a) development of more towns
b) increased use of pesticides
c) greater use of wood as a fuel
d) the use of more land for farming
15) The equation below represents photosynthesis
a) glucose and oxygen
b) glucose and water
c) chlorophyll and glucose
d) sunlight and oxygen
16) The diagram shows the carbon cycle.
Which row in the table names processes
1
and
2
process 1
process 2
a)
combustion
photosynthesis
b)
combustion
respiration
c)
respiration
combustion
d)
respiration
photosynthesis
17) The diagram shows part of a food chain
Which of the arrows represents the largest transfer of energy?
a)
b)
c)
d)
18) The diagram shows some stages in the nitrogen cycle
Which stages involve bacteria?
a) Z only
b) X and Y only
c) X and Z only
d) X, Y and Z
19) The graph shows the effect of the concentartion of a plant hormone onthe growth of roots and shoots.
Which statement is correct?
a) A change in the concentration of plant hormone affects the growth of shoots only
b) Increasing the concentartion of plant hormone always increases the growth of shoots
c) A decrease in the concentration of plant hormone always slows down the growth of roots and shoots
d) A narrow range of concentrationof plant hormone increases the growth of both roots and shoots
20) The rate of transpiration is affected by the weather.
Which row of the table shows the effect of it starting to rain and becoming windy?
effect on rate of transpiration
Starting to rain
becomming windy
a)
decreases
decreases
b)
decreases
increases
c)
increases
decreases
d)
increases
increases
21)A group of pupils investigated the rate of photosynthesis in a water plant at different temperatures. The results are shown on the graph.
Which limits the rate of photosynthesis at P?
a) carbon dioxide concentration
b) temperature
c) oxygen concentration
d) availability of water
22) Which of these causes of deforestation will cause least change to the carbon dioxide content of the air?
a) growing crops on the land
b) using timber as fuel
c) building roads on the land
d) using the timber for furniture
23) Which process needs energy from respiration?
a) absorption of mineral salts by roots
b) loss of water vapour by leaves
c) movement of water up the stem
d) uptake of carbon dioxide by leaves
24)The diagram shows apparatus set up to demonstrate osmosis
Which row of the table gives the results expected after 24 hours, and the correct explanation?
Change in water level in glass tube
explanation
a)
fall
concentrated sucrose solution moves out of the cellophane tube
b)
rise
dilute sucrose solution moves into cellophane tube
c)
fall
water molecules from cellophane tube move into beaker
d)
rise
water molecules from beaker move into cellophane tube
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