Ch.37 - SoilSee all chapters
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Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology

Soil and Nutrients

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Soil and Nutrients
Nitrogen Fixation
Additional Problems
What soil composition would be best for availability of nutrients, water, and root development?a. equal amounts of sand, clay, and humusb. higher proportion of humus; lower amounts of clay and sandc. higher proportion of clay; lower amounts of humus and sandd. higher proportion of sand; lower amount of humus and clay
There are several properties that are characteristic of a soil in which typical plants would grow well. Of the following, which would be the least conducive to plant growth?a. abundant humusb. numerous soil organismsc. compacted soild. high cation exchange capacity
Which of the following are problems associated with intensive irrigation?I) mineral runoffII) over fertilizationIII) aquifer depletionIV) soil salinizationa. only I and IIb. only I, III, and IVc. only III and IVd. I, II, III, and IV
Which of the following would inhibit the growth of most plants?a. abundant humusb. air spacesc. good drainaged. a pH above 10.0
Soil erosion could be controlled by ________.a. planting rows of trees as windbreaksb. no-till agriculturec. terrace hillside cropsd. all of the above
Which of the following would be the most effective strategy to remove toxic heavy metals from a soil?a. heavy irrigation to leach out the heavy metalsb. application of sulfur to lower the soil pH and precipitate the heavy metalsc. adding plant species that have the ability to take up and accumulate heavy metalsd. inoculating soil with mycorrhizae to avoid heavy-metal uptake
Soil leaching can cause nutrient deficiencies in the soil. Which of the following are symptoms of nutrient deficiency in plants?I) chlorosisII) death of meristemsIII) excess storage of chlorophyllIV) small internodesa. I, II, and IIIb. II, III, and IVc. I, II, and IVd. I, II, III, and IV
What are the main differences between primary and secondary succession? Compare the two and indicate what processes are more likely to be more important in each of them.
Chemical analysis showed that this plant has a decreased amount of Na+ relative to normal plants. What could explain this?
What is the main water/nutrient transport tissue in plants?
What pathway would sugar molecules manufactured in a leaf follow on their way to a growing root tip? What pathway would minerals entering the plant from the soil follow on their way to a leaf?
What components of the xylem and phloem facilitate transport of water, nutrients and sugars? How are water and minerals transported from the soil to the xylem? What role does the Casparian strip play in transport of water and minerals into the xylem? How does it affect the pathway of transport?