Question 1

The NPK percentages on a package of fertilizer refer to the ________.

Accepted Answer

A)  percentages of manure collected from different types of animals 
B)  relative percentages of organic and inorganic nutrients in the fertilizer 
C)  percentages of three important mineral nutrients 
D)  proportions of three different nitrogen sources 
A)  percentages of manure collected from different types of animals 
B)  relative percentages of organic and inorganic nutrients in the fertilizer 
C)  percentages of three important mineral nutrients 
D)  proportions of three different nitrogen sources

Question 2

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?

Accepted Answer

A)  abundant humus 
B)  numerous soil organisms 
C)  compacted soil 
D)  high cation exchange capacity 
A)  abundant humus 
B)  numerous soil organisms 
C)  compacted soil 
D)  high cation exchange capacity

Question 3

Soil pH is an important factor that influences ________.

Accepted Answer

A)  cation exchange 
B)  the chemical form of minerals 
C)  availability of minerals 
D)  cation exchange and the chemical form of minerals 
A)  cation exchange 
B)  the chemical form of minerals 
C)  availability of minerals 
D)  cation exchange and the chemical form of minerals

Question 4

How would you expect the root system of a plant grown by hydroponics to compare to the root system of a plant grown in soil? The root system of a plant grown by hydroponics would be ________.

Accepted Answer

A)  more developed 
B)  less developed 
C)  about the same 
D)  absent 
A)  more developed 
B)  less developed 
C)  about the same 
D)  absent

Question 5

Nitrogen-fixing bacteria and nitrifying bacteria convert atmospheric nitrogen into different compounds of nitrogen such as: (a)ammonium ion, (b)ammonia, (c)nitrate ion, and (d)nitrite ion. Which of the following is the correct sequence of formation of the nitrogen compounds?

Accepted Answer

A)  a, b, c, and d 
B)  b, a, d, and c 
C)  b, a, c, and d 
D)  a, b, d, and c 
A)  a, b, c, and d 
B)  b, a, d, and c 
C)  b, a, c, and d 
D)  a, b, d, and c

Question 6

A young farmer purchases some land in a relatively arid area and is interested in earning a reasonable profit for many years. Which of the following strategies would best allow the farmer to achieve such a goal?

Accepted Answer

A)  establishing an extensive irrigation system 
B)  using plenty of the best fertilizers 
C)  finding a way to sell all parts of crop plants 
D)  selecting crops adapted to arid areas 
A)  establishing an extensive irrigation system 
B)  using plenty of the best fertilizers 
C)  finding a way to sell all parts of crop plants 
D)  selecting crops adapted to arid areas

Question 7

Synthesis of which of the following compounds in a mature leaf would be least impacted by a temporary soil nitrogen deficiency?

Accepted Answer

A)  DNA 
B)  RNA 
C)  amino acids 
D)  cellulose 
A)  DNA 
B)  RNA 
C)  amino acids 
D)  cellulose

Question 8

Epiphytes are ________.

Accepted Answer

A)  aerial vines common in tropical regions 
B)  plants that live in poor soil and digest insects to obtain nitrogen 
C)  plants that grow on other plants but do not obtain nutrients from their hosts 
D)  plants that have a symbiotic relationship with fungi 
A)  aerial vines common in tropical regions 
B)  plants that live in poor soil and digest insects to obtain nitrogen 
C)  plants that grow on other plants but do not obtain nutrients from their hosts 
D)  plants that have a symbiotic relationship with fungi

Question 9

Micronutrients are needed in very small amounts because ________.

Accepted Answer

A)  most of them are mobile in the plant 
B)  most serve mainly as cofactors of enzymes 
C)  they play only a minor role in the growth and health of the plant 
D)  only the most actively growing regions of the plants require micronutrients 
A)  most of them are mobile in the plant 
B)  most serve mainly as cofactors of enzymes 
C)  they play only a minor role in the growth and health of the plant 
D)  only the most actively growing regions of the plants require micronutrients

Question 10

A mineral deficiency is likely to affect older leaves more than younger leaves if

Accepted Answer

A)  the mineral is a micronutrient. 
B)  the mineral is very mobile within the plant. 
C)  the mineral is required for chlorophyll synthesis. 
D)  the mineral is a macronutrient. 
A)  the mineral is a micronutrient. 
B)  the mineral is very mobile within the plant. 
C)  the mineral is required for chlorophyll synthesis. 
D)  the mineral is a macronutrient.

Question 11

Which elements are most often the limiting nutrients for plant growth?

Accepted Answer

A)  nitrogen, potassium, phosphorus 
B)  nitrogen, oxygen, hydrogen 
C)  carbon, sodium, chlorine 
D)  carbon, nitrogen, oxygen 
A)  nitrogen, potassium, phosphorus 
B)  nitrogen, oxygen, hydrogen 
C)  carbon, sodium, chlorine 
D)  carbon, nitrogen, oxygen

Question 12

What major benefits do plants and mycorrhizal fungi receive from their symbiotic relationship?

Accepted Answer

A)  Plants receive enzymes, and fungi receive nitrogen and phosphorus. 
B)  Plants receive increased root surface area, and fungi receive digestive enzymes. 
C)  Fungi receive photosynthetic products in exchange for living in plant root nodules. 
D)  Plants receive nitrogen and phosphorus, and fungi receive photosynthetic products. 
A)  Plants receive enzymes, and fungi receive nitrogen and phosphorus. 
B)  Plants receive increased root surface area, and fungi receive digestive enzymes. 
C)  Fungi receive photosynthetic products in exchange for living in plant root nodules. 
D)  Plants receive nitrogen and phosphorus, and fungi receive photosynthetic products.

Exam 37: Soil and Plant Nutrition

The NPK percentages on a package of fertilizer refer to the ________.

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?

Soil pH is an important factor that influences ________.

How would you expect the root system of a plant grown by hydroponics to compare to the root system of a plant grown in soil? The root system of a plant grown by hydroponics would be ________.

Nitrogen-fixing bacteria and nitrifying bacteria convert atmospheric nitrogen into different compounds of nitrogen such as: (a)ammonium ion, (b)ammonia, (c)nitrate ion, and (d)nitrite ion. Which of the following is the correct sequence of formation of the nitrogen compounds?

A young farmer purchases some land in a relatively arid area and is interested in earning a reasonable profit for many years. Which of the following strategies would best allow the farmer to achieve such a goal?

Synthesis of which of the following compounds in a mature leaf would be least impacted by a temporary soil nitrogen deficiency?

Epiphytes are ________.

Micronutrients are needed in very small amounts because ________.

A mineral deficiency is likely to affect older leaves more than younger leaves if

Which elements are most often the limiting nutrients for plant growth?

What major benefits do plants and mycorrhizal fungi receive from their symbiotic relationship?

Evolution, the Themes of Biology, and Scientific Inquiry

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Viruses

DNA Tools and Biotechnology

Genomes and Their Evolution

Descent with Modification: A Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity II: The Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Vascular Plant Structure, Growth, and Development

Resource Acquisition and Transport in Vascular Plants

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons, Synapses, and Signaling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behavior

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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