Question 1

To correct deficiency symptoms, a farmer can add _______ to the fields.

Accepted Answer

A)  winter wheat 
B)  top soil 
C)  lime 
D)  fertilizer 
E)  elemental sulfur 
A)  winter wheat 
B)  top soil 
C)  lime 
D)  fertilizer 
E)  elemental sulfur

Question 2

If a corn plant lacks the micronutrient _______, it will not be able to complete synthesis of its chlorophyll.

Accepted Answer

A)  magnesium 
B)  sulfur 
C)  phosphorus 
D)  potassium 
E)  iron 
A)  magnesium 
B)  sulfur 
C)  phosphorus 
D)  potassium 
E)  iron

Question 3

Which element is a micronutrient in plants?

Accepted Answer

A)  Potassium 
B)  Sulfur 
C)  Calcium 
D)  Zinc 
E)  Magnesium 
A)  Potassium 
B)  Sulfur 
C)  Calcium 
D)  Zinc 
E)  Magnesium

Question 4

What change would you most expect in a clay-heavy soil that is planted with cover crop and then tilled under?

Accepted Answer

A)  More water 
B)  More air pockets 
C)  Fewer worms 
D)  Fewer bacteria 
E)  Fewer minerals 
A)  More water 
B)  More air pockets 
C)  Fewer worms 
D)  Fewer bacteria 
E)  Fewer minerals

Question 5

Which list reflects the order of actions in plant nutrient uptake?

Accepted Answer

A)  Nutrient absorption, transport within the plant, nutrient assimilation 
B)  Nutrient absorption, nutrient assimilation, transport within the plant 
C)  Transport within the plant, nutrient assimilation, nutrient absorption 
D)  Transport within the plant, nutrient absorption, nutrient assimilation 
E)  Nutrient assimilation, transport within the plant, nutrient absorption 
A)  Nutrient absorption, transport within the plant, nutrient assimilation 
B)  Nutrient absorption, nutrient assimilation, transport within the plant 
C)  Transport within the plant, nutrient assimilation, nutrient absorption 
D)  Transport within the plant, nutrient absorption, nutrient assimilation 
E)  Nutrient assimilation, transport within the plant, nutrient absorption

Question 6

Refer to the graph showing the response of a hydroponic plant being transferred into a new solution.The dependent variable is the number of phosphate transporters per unit area of root epidermis as a function of time after transfer.   According to the graph, the plant was most likely moved from _______ to a _______.

Accepted Answer

A)  a high nitrogen solution; low nitrogen solution 
B)  a low phosphate solution; high phosphate solution 
C)  a high phosphate solution; low phosphate solution 
D)  a low nitrogen solution; high nitrogen solution 
E)  pure water; complete nutrient solution 
A)  a high nitrogen solution; low nitrogen solution 
B)  a low phosphate solution; high phosphate solution 
C)  a high phosphate solution; low phosphate solution 
D)  a low nitrogen solution; high nitrogen solution 
E)  pure water; complete nutrient solution

Question 7

Decomposed plant litter produces a dark-colored organic material called _______.

Accepted Answer

The answer of Decomposed plant litter produces a dark-colored organic...

Question 8

A newly identified species of trigger plant grows in unusual, extremely weathered soils but still deals with its mineral needs in conventional ways.It likely accesses new sources of mineral nutrients by

Accepted Answer

A)  breaking down organic matter. 
B)  growing longer roots. 
C)  shading the plants below them. 
D)  evolving more elaborate photosystems. 
E)  absorbing minerals through leaves. 
A)  breaking down organic matter. 
B)  growing longer roots. 
C)  shading the plants below them. 
D)  evolving more elaborate photosystems. 
E)  absorbing minerals through leaves.

Question 9

Which class of chemical, in addition to nitrogenase, is crucial for nitrogen fixation?

Accepted Answer

A)  Weak acid 
B)  Strong oxidizing agent 
C)  Strong reducing agent 
D)  Sodium hypochlorite 
E)  Potassium chloride 
A)  Weak acid 
B)  Strong oxidizing agent 
C)  Strong reducing agent 
D)  Sodium hypochlorite 
E)  Potassium chloride

Question 10

Carnivorous plants generally trap

Accepted Answer

A)  molluscs. 
B)  velvet worms. 
C)  insects. 
D)  crustaceans. 
E)  vertebrates. 
A)  molluscs. 
B)  velvet worms. 
C)  insects. 
D)  crustaceans. 
E)  vertebrates.

Question 11

Nitrogen gas

Accepted Answer

A)  is very unstable. 
B)  may be reduced, at high energy cost, to ammonia. 
C)  is a readily available source of nitrogen to most plants. 
D)  is formed by nitrification. 
E)  is a significant, direct contributor to the nitrogen in humans. 
A)  is very unstable. 
B)  may be reduced, at high energy cost, to ammonia. 
C)  is a readily available source of nitrogen to most plants. 
D)  is formed by nitrification. 
E)  is a significant, direct contributor to the nitrogen in humans.

Question 12

Plants do not need potassium for

Accepted Answer

A)  ion balance. 
B)  stomatal opening. 
C)  protein synthesis. 
D)  enzyme activation. 
E)  water balance. 
A)  ion balance. 
B)  stomatal opening. 
C)  protein synthesis. 
D)  enzyme activation. 
E)  water balance.

Question 13

The last micronutrient to be listed as essential for plant development was

Accepted Answer

A)  Ni (nickel). 
B)  N (nitrogen). 
C)  Mg (magnesium). 
D)  S (sulfur). 
E)  Nb (niobium). 
A)  Ni (nickel). 
B)  N (nitrogen). 
C)  Mg (magnesium). 
D)  S (sulfur). 
E)  Nb (niobium).

Question 14

The enzyme that fixes nitrogen in Rhizobium is called

Accepted Answer

A)  urease. 
B)  rubisco. 
C)  nitrogenase. 
D)  carbonic anhydrase. 
E)  DNase I. 
A)  urease. 
B)  rubisco. 
C)  nitrogenase. 
D)  carbonic anhydrase. 
E)  DNase I.

Question 15

Soils can have as many as _______ major horizons.

Accepted Answer

The answer of Soils can have as many as _______...

Question 16

Of the steps below, which would be fourth in the sequence for the formation of a root nodule?

Accepted Answer

A)  Bacteroids are formed. 
B)  The root produces flavonoids that attract Rhizobium bacteria to the vicinity of the root. 
C)  Flavonoids trigger transcription of the bacterial nod genes. 
D)  The plant produces leghemoglobin. 
E)  Nod factors secreted by the bacteria cause cell division leading to the formation of primary nodule meristem. 
A)  Bacteroids are formed. 
B)  The root produces flavonoids that attract Rhizobium bacteria to the vicinity of the root. 
C)  Flavonoids trigger transcription of the bacterial nod genes. 
D)  The plant produces leghemoglobin. 
E)  Nod factors secreted by the bacteria cause cell division leading to the formation of primary nodule meristem.

Question 17

A farmer is seen adding dead leaves to a plot of soil.You conclude that the farmer is trying to increase the _______ in the soil.

Accepted Answer

A)  silt 
B)  sand 
C)  air 
D)  humus 
E)  clay 
A)  silt 
B)  sand 
C)  air 
D)  humus 
E)  clay

Question 18

Most of a plant's requirement for nitrogen is due to its synthesis of

Accepted Answer

A)  lipids only. 
B)  proteins only. 
C)  nucleic acids only. 
D)  lipids and proteins. 
E)  proteins and nucleic acids. 
A)  lipids only. 
B)  proteins only. 
C)  nucleic acids only. 
D)  lipids and proteins. 
E)  proteins and nucleic acids.

Question 19

The three elements most commonly added to agricultural soils as chemical fertilizer are nitrogen, phosphorus, and _______.

Accepted Answer

The answer of The three elements most commonly added to...

Question 20

Nitrogen fixers are present among

Accepted Answer

A)  bacteria. 
B)  fungi. 
C)  Plantae. 
D)  both bacteria and fungi. 
E)  both bacteria and Plantae. 
A)  bacteria. 
B)  fungi. 
C)  Plantae. 
D)  both bacteria and fungi. 
E)  both bacteria and Plantae.

Exam 35: Plant Nutrition

To correct deficiency symptoms, a farmer can add _______ to the fields.

If a corn plant lacks the micronutrient _______, it will not be able to complete synthesis of its chlorophyll.

Which element is a micronutrient in plants?

What change would you most expect in a clay-heavy soil that is planted with cover crop and then tilled under?

Which list reflects the order of actions in plant nutrient uptake?

Decomposed plant litter produces a dark-colored organic material called _______.

A newly identified species of trigger plant grows in unusual, extremely weathered soils but still deals with its mineral needs in conventional ways.It likely accesses new sources of mineral nutrients by

Which class of chemical, in addition to nitrogenase, is crucial for nitrogen fixation?

Carnivorous plants generally trap

Nitrogen gas

Plants do not need potassium for

The last micronutrient to be listed as essential for plant development was

The enzyme that fixes nitrogen in Rhizobium is called

Soils can have as many as _______ major horizons.

Of the steps below, which would be fourth in the sequence for the formation of a root nodule?

A farmer is seen adding dead leaves to a plot of soil.You conclude that the farmer is trying to increase the _______ in the soil.

Most of a plant's requirement for nitrogen is due to its synthesis of

The three elements most commonly added to agricultural soils as chemical fertilizer are nitrogen, phosphorus, and _______.

Nitrogen fixers are present among

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Communication and Multicellularity

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinant Dna and Biotechnology

Mechanisms of Evolution

Reconstructing and Using Phylogenies

Speciation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

The Evolution and Diversity of Fungi

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

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Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

Neurons, Glia, and Nervous Systems

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The Mammalian Nervous System: Structure and Higher Functions

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Salt and Water Balance and Nitrogen Excretion

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