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Post-Test
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1
Which of the following is considered a limiting factor to the growth of green plants?
A)Light
B)Mineral nutrients
C)Water
D)Carbon dioxide
E)All of the choices are considered limiting factors to the growth of green plants.
2
Arrange the soil horizons listed below from bottom to top. I: bedrock II: topsoil III: soil base IV: subsoil
A)iii; ii; iv; i
B)ii; iv; i; iii
C)iii; ii; i; iv
D)i; iii; iv; ii
E)ii; iii; iv; i
3
Which of the following types of prokaryotes are not symbiotically associated with specific types of plants?
A)Actinobacteria
B)Cyanobacteria
C)Proteobacteria
D)Zygomycota
E)Actinobacteria, cyanobacteria, and proteobacteria
4
Identify whether the elements listed below are macronutrients or micronutrients for plants.
I: magnesiuma: micronutrient
II:sulfurb: macronutrient
III:copper
IV: Boron
A)i = b; ii = b; iii = a; iv = a
B)i = b; ii = a; iii = b; iv = b
C)i = a; ii = b; iii = a; iv = a
D)i = a; ii = a; iii = b; iv = b
E)i = b; ii = b; iii = b; iv = a
5
Which of the following compounds is used as a source of hydrogen in green plants?
A)H 2 O
B)CO 2
C)SO 42-
D)H2O and CO2
E)H2O, CO2 and SO 42-
6
Which of the following least accurately describes an adaptation to shade?
A)Taller plants with leaves only at the tops
B)Thicker mesophyll layers in leaves
C)Translucent leaves that allow some light to pass through to other leaves
D)Fewer air spaces in leaf mesophyll layers
E)Production of xanthophyll pigment
7
True or False: Most plant dry mass originates from carbon dioxide.
A)True
B)False
8
Which of the following is not a function of water for plants?
A)Water is the main source of Hydrogen for plants
B)Water is a source of Oxygen for plants in the Calvin Benson cycle
C)Water is the solvent for many minerals utilized by plants
D)Water stored in central vacuoles aid in hydrostatic pressure
E)All of the choices are functions of water in plants.
9
Which of the following is not a function of macronutrients found in soil water?
A)Cell wall construction
B)Cell signaling
C)Defensive compound composition
D)Components of chlorophyll
E)All of the choices are functions of macronutrients in soil water.
10
Which one of the following factors can influence the composition and thickness of soil horizons?
A)Human impact
B)Bedrock type
C)Climate
D)Vegetation
E)All of the factors can influence the composition and thickness of soil horizons.
11
True or False: Inorganic materials in soil are derived from weathering of bedrock.
A)True
B)False
12
True or False: Cation exchange in silty and clay soils aids in the uptake of ions by plants roots.
A)True
B)False
13
Which one of the following substances would be acceptable for use in organic farming?
A)NPK fertilizer
B)Pesticides
C)Compost
D)Growth substances
E)None of the substances would be acceptable for use in organic farming.
14
Which of the following is an example of fixed nitrogen?
A)N2
B)NH3
C)NO3-
D)NH2 and NO3-
E)N2 and NH3
15
Which of the following statements about nitrate metabolism is correct?
A)Nitrate reductase converts nitrate to nitrite in plastids.
B)Nitrate can be transported into a vacuole for storage.
C)Nitrite reductase converts nitrite to ammonium ion in the cytoplasm.
D)Glutamine synthetase converts nitrate directly into glutamine.
E)None of the statements about nitrate metabolism are correct.
16
Which of the following statements regarding nitrogen fixing prokaryotes is incorrect?
A)Nitrogen fixing prokaryotes are photosynthetic
B)Nitrogen fixing prokaryotes are most often found in aquatic environments.
C)Nitrogen fixing prokaryotes include cyanobacteria and bacteria
D)Nitrogen fixing prokaryotes may be found in soil crusts.
E)Nitrogen fixing prokaryotes utilize nitrogenase in order to fix nitrogen.
17
Which of the following elements is not a micronutrient and can be toxic even at very low concentrations in plant soil?
A)Aluminum
B)Boron
C)Zinc
D)Nickel
E)Copper
18
Which one of the following statements about rhizobia is incorrect?
A)Rhizobia respond to flavenoids produced by legumes by secreting Nod factors.
B)Modified rhizobia present in mature nodules are referred to as bacteroids.
C)Rhizobia can survive and fix nitrogen independently of legume roots, but do so inefficiently.
D)Nodular rhizobia are supplied with organic food by the vascular tissue of the nodule.
E)All of the statements about rhizobia are correct.
19
Which of the following most accurately describes carnivorous plants?
A)Photosynthetic heterotrophs
B)Parasitic heterotrophs
C)Parasitic autotrophs
D)Photosynthetic autotrophs
E)Chemosynthetic autotrophs
20
True or False: Many species of parasitic plants lack roots and do not grow from the soil.
A)True
B)False





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