Question 1

What is phytoremediation?

Accepted Answer

A) use of plants to remove heavy metals from soils 
B) use of plants to remove excess CO₂ from the atmosphere and reduce global warming 
C) use of plants to conserve soil nutrients 
D) use of plants to prevent soil loss due to water and wind 
A) use of plants to remove heavy metals from soils 
B) use of plants to remove excess CO₂ from the atmosphere and reduce global warming 
C) use of plants to conserve soil nutrients 
D) use of plants to prevent soil loss due to water and wind

Question 2

Why does planting a cover crop help conserve soil?

Accepted Answer

A) controls weed populations 
B) reduces soil loss due to wind and water erosion 
C) increases soil nutrients when plowed under and allowed to decompose 
D) both B and C 
E) all of the above 
A) controls weed populations 
B) reduces soil loss due to wind and water erosion 
C) increases soil nutrients when plowed under and allowed to decompose 
D) both B and C 
E) all of the above

Question 3

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?

Accepted Answer

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

Question 4

Which of the following experiments is able to determine if an element is essential for plant growth?

Accepted Answer

A) measuring the amount of the element stored in plant tissues 
B) measuring the amount of the element in the soil before and after plant growth 
C) measuring the weight of the plant and soil before and after plant growth 
D) growth of a plant by hydroponics without the element 
E) all of the above 
A) measuring the amount of the element stored in plant tissues 
B) measuring the amount of the element in the soil before and after plant growth 
C) measuring the weight of the plant and soil before and after plant growth 
D) growth of a plant by hydroponics without the element 
E) all of the above

Question 5

While hiking in a forest,you notice an unusual plant growing on the branches of a tree.What will help you to determine if this plant is epiphytic or parasitic?

Accepted Answer

A) If the plant is green,it is epiphytic;if not,then it is parasitic. 
B) The root of an epiphytic plant will be in the soil,but a parasitic plant will grow from the trunk of a tree. 
C) The roots of a parasitic plant will penetrate under the bark into the tree xylem,and the roots of epiphytic plant will not. 
D) The epiphytic plant will have leaves forming tanks collecting water,and the parasitic plant will not. 
E) All of the above apply. 
A) If the plant is green,it is epiphytic;if not,then it is parasitic. 
B) The root of an epiphytic plant will be in the soil,but a parasitic plant will grow from the trunk of a tree. 
C) The roots of a parasitic plant will penetrate under the bark into the tree xylem,and the roots of epiphytic plant will not. 
D) The epiphytic plant will have leaves forming tanks collecting water,and the parasitic plant will not. 
E) All of the above apply.

Question 6

Which of the following is not true about an essential nutrient?

Accepted Answer

A) It is necessary for plant growth and reproduction. 
B) It is required for a specific structure or metabolic function. 
C) It cannot be synthesized by a plant. 
D) It is produced by symbiotic bacteria. 
E) All of the above are correct. 
A) It is necessary for plant growth and reproduction. 
B) It is required for a specific structure or metabolic function. 
C) It cannot be synthesized by a plant. 
D) It is produced by symbiotic bacteria. 
E) All of the above are correct.

Question 7

You want to grow a plant that prefers neutral pH in a limestone soil.What should you add to the soil to improve plant growth?

Accepted Answer

A) sulfur (S + H₂O + 3/2 O₂↔2 H⁺ + SO₄²⁻) 
B) calcium carbonate (CaCO₃ + H₂O↔HCO₃⁻ + Ca²⁺ + OH⁻) 
C) aluminum hydroxide [Al(OH)₃ + 2 H+↔Al(OH)²⁺ + 2 H₂O] 
D) potassium nitrate (KNO₃↔K⁺ + NO₃⁻) 
A) sulfur (S + H₂O + 3/2 O₂↔2 H⁺ + SO₄²⁻) 
B) calcium carbonate (CaCO₃ + H₂O↔HCO₃⁻ + Ca²⁺ + OH⁻) 
C) aluminum hydroxide [Al(OH)₃ + 2 H+↔Al(OH)²⁺ + 2 H₂O] 
D) potassium nitrate (KNO₃↔K⁺ + NO₃⁻)

Question 8

To determine the requirement of chlorine for plant growth,you decided to perform a hydroponic experiment.What solution are you going to use to grow control plants for comparison with chlorine-derived plants?

Accepted Answer

A) pure water 
B) water with chlorine 
C) water with macronutrients and chlorine 
D) water with micronutrients and chlorine 
E) water with essential elements 
A) pure water 
B) water with chlorine 
C) water with macronutrients and chlorine 
D) water with micronutrients and chlorine 
E) water with essential elements

Question 9

To understand the role of zinc in plant growth and development,you are growing a tomato plant using hydroponics.Which plant organs do you expect to have developmental defects if you provide the plant with a solution devoid of zinc?

Accepted Answer

A) leaf development only 
B) stem development only 
C) above ground development 
D) below ground development 
E) all organs will be affected 
A) leaf development only 
B) stem development only 
C) above ground development 
D) below ground development 
E) all organs will be affected

Question 10

Where are ion channels localized?

Accepted Answer

A) in the cytoplasm 
B) spanning plasma membranes 
C) on the extracellular surface of plasma membranes 
D) on the intracellular surface of plasma membranes 
A) in the cytoplasm 
B) spanning plasma membranes 
C) on the extracellular surface of plasma membranes 
D) on the intracellular surface of plasma membranes

Question 11

Which elements are responsible for the greater part of plant wet weight?

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

The micronutrient iron is abundant in soil,but often unavailable to plants due to insolubility.Knowing that the reaction Fe(OH)₃ + 3 H⁺ ↔ Fe³⁺ + 3 H₂O occurs,and assuming all soil samples have same total amount of iron in them,which type of soil would you predict to have the highest amount of soluble iron?

Accepted Answer

A) neutral 
B) acidic 
C) alkaline 
D) The amount of iron in soil does not depend on pH. 
A) neutral 
B) acidic 
C) alkaline 
D) The amount of iron in soil does not depend on pH.

Question 14

What is a typical habitat for carnivorous plants?

Accepted Answer

A) wet areas with high salinity 
B) wet areas with high levels of humus 
C) wet areas with low decomposition rates 
D) dry areas with low levels of available oxygen 
E) dry areas with high levels of peat 
A) wet areas with high salinity 
B) wet areas with high levels of humus 
C) wet areas with low decomposition rates 
D) dry areas with low levels of available oxygen 
E) dry areas with high levels of peat

Question 15

Which of the following binds to clay particles?

Accepted Answer

A) potassium ions 
B) nitrate ions 
C) phosphoric acid 
D) sulfate ions 
E) ferrous ions 
A) potassium ions 
B) nitrate ions 
C) phosphoric acid 
D) sulfate ions 
E) ferrous ions

Question 16

What is the right sequence of steps during infection of plants by nitrogen-fixing bacteria?

Accepted Answer

A) Rhizobia release Nod factors;roots release flavonoids;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms. 
B) Rhizobia release flavonoids;roots release Nod factors;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms. 
C) Roots release flavonoids;rhizobia release Nod factors;rhizobia proliferate inside of root hair;nodule forms;infection thread grows into the root cortex. 
D) Roots release flavonoids;rhizobia release Nod factors;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms. 
E) Nodule forms;infection thread grows into the root cortex;rhizobia proliferate inside of root hair;rhizobia release flavonoids and Nod factors. 
A) Rhizobia release Nod factors;roots release flavonoids;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms. 
B) Rhizobia release flavonoids;roots release Nod factors;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms. 
C) Roots release flavonoids;rhizobia release Nod factors;rhizobia proliferate inside of root hair;nodule forms;infection thread grows into the root cortex. 
D) Roots release flavonoids;rhizobia release Nod factors;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms. 
E) Nodule forms;infection thread grows into the root cortex;rhizobia proliferate inside of root hair;rhizobia release flavonoids and Nod factors.

Exam 38: Plant Nutrition

What is phytoremediation?

Why does planting a cover crop help conserve soil?

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?

Which of the following experiments is able to determine if an element is essential for plant growth?

While hiking in a forest,you notice an unusual plant growing on the branches of a tree.What will help you to determine if this plant is epiphytic or parasitic?

Which of the following is not true about an essential nutrient?

You want to grow a plant that prefers neutral pH in a limestone soil.What should you add to the soil to improve plant growth?

To determine the requirement of chlorine for plant growth,you decided to perform a hydroponic experiment.What solution are you going to use to grow control plants for comparison with chlorine-derived plants?

To understand the role of zinc in plant growth and development,you are growing a tomato plant using hydroponics.Which plant organs do you expect to have developmental defects if you provide the plant with a solution devoid of zinc?

Where are ion channels localized?

Which elements are responsible for the greater part of plant wet weight?

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

What is a typical habitat for carnivorous plants?

Which of the following binds to clay particles?

What is the right sequence of steps during infection of plants by nitrogen-fixing bacteria?

Biology and the Tree of Life

Water and Carbon: the Chemical Basis of Life

Protein Structure and Function

Nucleic Acids and the Rna World

An Introduction to Carbohydrates

Lipids, membranes, and the First Cells

Inside the Cell

Cell-Cell Interactions

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis

Mendel and the Gene

Dna and the Gene: Synthesis and Repair

How Genes Work

Transcription and Translation

Control of Gene Expression in Bacteria

Control of Gene Expression in Eukaryotes

Analyzing and Engineering Genes

Genomics

Principles of Development

An Introduction to Animal Development

An Introduction to Plant Development

Evolution by Natural Selection

Evolutionary Processes

Speciation

Phylogenies and the History of Life

Bacteria and Archaea

Protists

Green Plants

Fungi

An Introduction to Animals

Protostome Animals

Deuterostome Animals

Viruses

Plant Form and Function

Water and Sugar Transport in Plants

Plant Sensory Systems, signals, and Responses

Plant Reproduction

Animal Form and Function

Water and Electrolyte Balance in Animals

Animal Nutrition

Gas Exchange and Circulation

Electrical Signals in Animals

Animal Sensory Systems and Movement

Chemical Signals in Animals

Animal Reproduction

The Immune System in Animals

An Introduction to Ecology

Behavioral Ecology

Population Ecology

Community Ecology

Ecosystems

Biodiversity and Conservation Biology

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