Science Focus 2 TEST Chapter 7 - Pearson Australia Media ...

Science Focus 2 TEST
Chapter 7: Plant systems
Name: _______________________ Class: __________ Date: _______
Instructions: Write answers in the right-hand column.
Score: ___________ / 61 marks
Section A − Multiple choice (13 marks)
1 The male part of a flower is made up of the
A stigma, style and ovary.
B petals and sepals.
C anther and filament.
D nectary and ovule.
1
2 The openings in plant leaves that allow gases in and out and control water loss
are called
A the epidermis.
B stomata.
C mesophyll cells.
D the cuticle.
1
3 Which type of transport tube carries water and minerals from the roots in
plants?
A Chlorophyll.
B Phloem.
C Stoma.
D Xylem.
1
4 A vascular bundle is a
A bunch of flowers or plant cuttings.
B group of tubes within a plant.
C group of guard cells on the underside of a leaf.
D plant root system.
1
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
5 In which of these plant leaf cells is the maximum rate of photosynthesis
expected to occur?
A Epidermal cells.
B Palisade cells.
C Xylem cells.
D Mesophyll cells.
1
6 If carbon dioxide, water and chlorophyll are placed in a test tube in the sunlight
A glucose and bubbles of oxygen will be produced immediately.
B glucose and bubbles of oxygen will be produced, but only after a long
period of time.
C no reaction will occur because one reactant is missing.
D no reaction will occur because necessary enzymes are missing.
1
7 Photosynthesis may be considered a two-stage process. Which of the following
occurs during stage 1?
A Energy is released by chlorophyll molecules.
B Energy is trapped by chlorophyll molecules.
C Carbon dioxide is released.
D Starch molecules are made.
1
8 An experiment was conducted using the set-up shown below.
1
The volume of gas collected in the test tube after 2 hours would not be affected
by the
A size of the test tube.
B mass of plant used.
C intensity of the light source.
D temperature of the solution.
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
9 At night the starch in leaves is reconverted to glucose. This is called
A photosynthesis.
B Benzyme release.
C destarching.
D respiration.
1
10 The process of using oxygen to release energy from food is called
A photosynthesis.
B respiration.
C breathing.
D elimination.
1
11 Respiration is a chemical reaction which
A occurs only in the body cells of animals.
B always has oxygen as a reactant.
C involves a sequence of reactions.
D is endothermic (absorbs energy).
1
12 Which colour of light is not absorbed by chlorophyll?
A Green.
B Red.
C Blue.
D Orange.
1
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
13 The graph below shows the amount of oxygen produced by a plant as light
intensity was increased under two different sets of conditions.
1
Which of the following would explain the difference between graphs X and Y?
A Graph X was obtained with the plant in orange light, graph Y with the plant
in red light.
B Graph X was obtained with the plant at a higher temperature than for graph
Y.
C Graph X was obtained with the plant in a higher concentration of carbon
dioxide than for graph Y.
D Graph X was obtained using a larger mass of plant than for graph Y.
Section B − Written answers (48 marks)
1 Label the following parts of a plant
stem cross-section using the terms
below.
4
xylem, phloem, cambium, vascular
bundle
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
2 Identify two functions of
a the roots.
b the stem.
4
3 Flowering plants may either be selfpollinated
or cross-pollinated.
a Define cross-pollination.
b Propose two ways in which
cross-pollination can be made to
occur.
4
4 A particular flower has its stigma placed
higher than its anthers. Predict whether
this flower could be self-pollinated.
Explain your answer.
2
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
5 The diagram below shows a section
through a plant leaf.
5
Identify which label (1 to 8) represents
a an epidermal cell.
b a palisade cell.
c a xylem vessel.
d a chloroplast.
e a stoma cell.
6 Propose explanations for
a plants in the desert growing very
slowly.
b plants not being found in the
ocean at depths greater than
300 m.
4
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
7 a Write a chemical equation for the
process of photosynthesis.
b Identify two other requirements
(apart from the reactants) for
photosynthesis to occur.
c Define the reaction as either
exothermic or endothermic.
4
8 Identify the plant cell structures in
which the following processes occur.
a Stage 1 of respiration.
b Stage 2 of respiration.
c Photosynthesis.
9 Identify three ways in which the
glucose produced during photosynthesis
may be used by a plant.
3
3
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
10 The graph below shows the effect of
light intensity on the rate of
photosynthesis.
4
Explain
a why the rate increases in the first
section (I) of the graph.
b why the rate does not increase in
the second section (II) of the
graph.
11 An experiment was conducted using the
flasks shown below. All flasks
contained water, were at the same
temperature and were in sunlight.
4
After two hours the carbon dioxide level
in each flask was measured.
a Identify the flask (A–D) in
which the carbon dioxide level
would be lowest after two hours.
b Explain how you arrived at your
choice in part (a).
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 7: Plant systems
12 Which colour of light is strongly
absorbed by
a water?
b green algae?
c red algae?
3
13 a Write a chemical word equation
for the process of aerobic
respiration.
b Does this reaction absorb or
release energy?
c What does the word ‘aerobic’
mean?
4
© Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2005.
This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.