37_ALQ_PRS

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Chapter 37
Plant Nutrition
Active Lecture Questions for use with Classroom Response Systems
Biology, Seventh Edition
Neil Campbell and Jane Reece
Edited by William Wischusen, Louisiana State University
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings
1. The inorganic compound that contributes most
of the mass to a plant’s organic matter is *
1) H2O.
2) CO2.
3) NO32.
4) O2.
5) C6H12O6.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings
2. You are conducting an experiment on plant
growth. You take a plant fresh from the soil and it
weighs 5 kg. Then you dry the plant overnight
and determine the dry weight to be 1 kg. Of this
dry weight, how much would you expect to be
made up of inorganic minerals?
1) 50 grams
2) 500 grams
3) 1 kg
4) 4 kg
5) 5 kg
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings
This figure shows the
results of a study to
determine the effect
of soil air spaces on
plant growth. Use
these data to answer
the following
question.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings
3. The best explanation for the shape of this growth
response curve is that
1) the plant requires air in the soil for
photosynthesis.
2) the roots are able to absorb more nitrogen (N2) in
high levels of air.
3) most of the decrease in weight at low air levels is
due to transpiration from the leaves.
4) increased soil air produces more root mass in the
soil but does not affect the top stems and leaves.
5) the roots require oxygen for respiration and
growth.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings
4. Carnivorous plants have evolved mechanisms
that trap and digest small animals. The products
of this digestion are used to supplement the
plant's supply of
1) energy.
2) carbohydrates.
3) lipids and steroids.
4) minerals.
5) water.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings
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