Question 1

Relative growth rate is the change in size of a plant during some period of time.

Accepted Answer

A) True 
 B)False

Question 2

As temperatures continue to rise, the photosynthetic rate reaches a maximum related to

Accepted Answer

A) the temperature response of Rubisco. 
B) the thickness of the boundary layer. 
C) soil temperature. 
D) oxygen availability. 
A) the temperature response of Rubisco. 
B) the thickness of the boundary layer. 
C) soil temperature. 
D) oxygen availability.

Question 3

The light level at which the rate of carbon uptake in photosynthesis equals the rate of carbon loss in respiration is the ________ point.

Accepted Answer

The answer of The light level at which the rate...

Question 4

________ is the component of relative growth rate that represents the leaf area per unit of plant weight.

Accepted Answer

Leaf area

Question 5

A plant growing in sun is expected to have a ________ maximum photosynthetic rate than a plant growing in shade.

Accepted Answer

The answer of A plant growing in sun is expected...

Question 6

Describe two plant adaptations to low light and explain why these adaptations are unsuitable for plants in high-light environments.

Accepted Answer

Two plant adaptations to low light inclu

Question 7

Plants lose heat to the environment through direct contact of leaves with the air or water.

Accepted Answer

A) True 
 B)False

Question 8

Carbon balance focuses on the balance between

Accepted Answer

A) uptake of CO₂ in photosynthesis and loss of heat via evapotranspiration. 
B) loss of CO₂ through respiration and gain of nutrients. 
C) loss of H₂O balanced with the gain of CO₂ via transpiration. 
D) uptake of CO₂ in photosynthesis balanced with the loss of CO₂ during respiration. 
A) uptake of CO₂ in photosynthesis and loss of heat via evapotranspiration. 
B) loss of CO₂ through respiration and gain of nutrients. 
C) loss of H₂O balanced with the gain of CO₂ via transpiration. 
D) uptake of CO₂ in photosynthesis balanced with the loss of CO₂ during respiration.

Question 9

All life on Earth is carbon based.

Accepted Answer

A) True 
 B)False

Question 10

A CO₂ gradient between the inside and outside of a leaf is maintained during photosynthesis because

Accepted Answer

A) energy is expended by the plant to maintain the CO₂ gradient. 
B) the CO₂ concentration outside of the leaf is always increasing. 
C) the CO₂ concentration in the mesophyll is constantly decreasing. 
D) the stomata close whenever more CO₂ is needed. 
A) energy is expended by the plant to maintain the CO₂ gradient. 
B) the CO₂ concentration outside of the leaf is always increasing. 
C) the CO₂ concentration in the mesophyll is constantly decreasing. 
D) the stomata close whenever more CO₂ is needed.

Question 11

The tendency of a solution to attract water molecules from areas of high to low concentration is called its ________.

Accepted Answer

The answer of The tendency of a solution to attract...

Question 12

Compared with plants growing in high light, plants growing in shaded environments tend to produce ________ Rubisco.

Accepted Answer

A) equal amounts of 
B) more 
C) less 
D) a different type of 
A) equal amounts of 
B) more 
C) less 
D) a different type of

Question 13

At light levels below the light compensation point, the rate of carbon loss due to respiration exceeds the rate of uptake in the process of photosynthesis.

Accepted Answer

A) True 
 B)False

Question 14

Submerged aquatic plants are different from terrestrial plants in that they can use HCO₃⁻ as a carbon source for photosynthesis.

Accepted Answer

A) True 
 B)False

Question 15

The process of photosynthesis in plants occurs in specialized cells within the leaf called ________ cells.

Accepted Answer

The answer of The process of photosynthesis in plants occurs...

Question 16

Which of the following conditions is required for a continued movement of water from the soil into and through a plant via transpiration?

Accepted Answer

A) ψₐtm < ψᵣₒₒt < ψlₑₐf < ψsₒᵢl 
B) ψₐtm < ψlₑₐf < ψᵣₒₒt < ψsₒᵢl 
C) ψsₒᵢl < ψᵣₒₒt < ψlₑₐf < ψₐtm 
D) ψsₒᵢl < ψₐtm < ψᵣₒₒt < ψlₑₐf 
A) ψₐtm < ψᵣₒₒt < ψlₑₐf < ψsₒᵢl 
B) ψₐtm < ψlₑₐf < ψᵣₒₒt < ψsₒᵢl 
C) ψsₒᵢl < ψᵣₒₒt < ψlₑₐf < ψₐtm 
D) ψsₒᵢl < ψₐtm < ψᵣₒₒt < ψlₑₐf

Question 17

An Acacia seedling grown in shade (50% full sun)is expected to have a ________ net assimilation rate (NAR)and ________ leaf area ratio (LAR)than an Acacia seedling grown in full sun.

Accepted Answer

A) higher; higher 
B) lower; lower 
C) lower; higher 
D) higher; lower 
A) higher; higher 
B) lower; lower 
C) lower; higher 
D) higher; lower

Question 18

Some plants have the ability to tolerate extreme cold, known as ________.

Accepted Answer

The answer of Some plants have the ability to tolerate...

Question 19

Much of the nitrogen taken in by a plant is used to synthesis the molecules Rubisco and ________.

Accepted Answer

The answer of Much of the nitrogen taken in by...

Question 20

Plants can reduce water loss by

Accepted Answer

A) closing their stomata. 
B) growing larger leaves. 
C) growing more slowly. 
D) increasing photosynthesis. 
A) closing their stomata. 
B) growing larger leaves. 
C) growing more slowly. 
D) increasing photosynthesis.

Exam 6: Plant Adaptations to the Environment

Relative growth rate is the change in size of a plant during some period of time.

As temperatures continue to rise, the photosynthetic rate reaches a maximum related to

The light level at which the rate of carbon uptake in photosynthesis equals the rate of carbon loss in respiration is the ________ point.

________ is the component of relative growth rate that represents the leaf area per unit of plant weight.

A plant growing in sun is expected to have a ________ maximum photosynthetic rate than a plant growing in shade.

Describe two plant adaptations to low light and explain why these adaptations are unsuitable for plants in high-light environments.

Plants lose heat to the environment through direct contact of leaves with the air or water.

Carbon balance focuses on the balance between

All life on Earth is carbon based.

A CO₂ gradient between the inside and outside of a leaf is maintained during photosynthesis because

The tendency of a solution to attract water molecules from areas of high to low concentration is called its ________.

Compared with plants growing in high light, plants growing in shaded environments tend to produce ________ Rubisco.

At light levels below the light compensation point, the rate of carbon loss due to respiration exceeds the rate of uptake in the process of photosynthesis.

Submerged aquatic plants are different from terrestrial plants in that they can use HCO₃⁻ as a carbon source for photosynthesis.

The process of photosynthesis in plants occurs in specialized cells within the leaf called ________ cells.

Which of the following conditions is required for a continued movement of water from the soil into and through a plant via transpiration?

An Acacia seedling grown in shade (50% full sun)is expected to have a ________ net assimilation rate (NAR)and ________ leaf area ratio (LAR)than an Acacia seedling grown in full sun.

Some plants have the ability to tolerate extreme cold, known as ________.

Much of the nitrogen taken in by a plant is used to synthesis the molecules Rubisco and ________.

Plants can reduce water loss by

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Ecological Genetics: Adaptation and Natural Selection

Animal Adaptations to the Environment

Life History Patterns

Properties of Populations

Population Growth

Intraspecific Population Regulation

Metapopulations

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Community Dynamics

Landscape Ecology

Systems Ecology

Ecosystem Energetic

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Population Growth, Resource Use, and Sustainability

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An Acacia seedling grown in shade (50% full sun)is expected to have a net assimilation rate (NAR)and leaf area ratio (LAR)than an Acacia seedling grown in full sun.