Biology (Mader), 10th Edition

Chapter 25: Flowering Plants: Nutrition and Transport

Pre-Test

1
Which of the following is an essential element in plants?
A)Nitrogen
B)Nickel
C)Aluminum
D)Lead
2
Nitrogen is an essential element because it is a component of _____.
A)proteins
B)DNA
C)chlorophyll
D)All of these
3
A soil with mostly _____ particles has large spaces and the water drains right through them.
A)silt
B)sand
C)clay
4
The final decomposition of organic remains in humus to inorganic nutrients is performed by _____.
A)protozoa
B)earthworms
C)small plants
D)All of these
5
Carbon dioxide and water are combined during photosynthesis to form _____.
A)carbohydrates
B)proteins
C)nucleic acids
D)lipids
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