Question 1

Plants growing in shade tend to produce less rubisco and more chlorophyll than plants growing in full sun.

Accepted Answer

A) True 
 B)False

Question 2

The C₄ photosynthetic pathway is most common in

Accepted Answer

A) gymnosperm trees. 
B) angiosperm trees. 
C) algae,bryophytes,and ferns. 
D) grasses and shrubs in warm and dry climates. 
A) gymnosperm trees. 
B) angiosperm trees. 
C) algae,bryophytes,and ferns. 
D) grasses and shrubs in warm and dry climates.

Question 3

Plants growing in low-nutrient environments have greater root production than plants living in high-nutrient environments.

Accepted Answer

A) True 
 B)False

Question 4

The rates of photosynthesis and respiration in a plant are controlled by the temperature in the

Accepted Answer

A) soil. 
B) air. 
C) leaf. 
D) root. 
A) soil. 
B) air. 
C) leaf. 
D) root.

Question 5

Photoinhibition is the negative effect of high light levels on respiration.

Accepted Answer

A) True 
 B)False

Question 6

In photosynthesis,the light-independent reactions do not directly require the presence of sunlight.

Accepted Answer

A) True 
 B)False

Question 7

Submerged aquatic plants can take up CO₂ from the water in all of the following ways,except

Accepted Answer

A) diffusion through stomata. 
B) direct diffusion of ambient CO₂ from water across cell membranes. 
C) active transport of bicarbonate into the leaf followed by conversion to CO₂. 
D) excretion of carbonic anhydrase into the water,followed by uptake of the resulting CO₂. 
A) diffusion through stomata. 
B) direct diffusion of ambient CO₂ from water across cell membranes. 
C) active transport of bicarbonate into the leaf followed by conversion to CO₂. 
D) excretion of carbonic anhydrase into the water,followed by uptake of the resulting CO₂.

Question 8

All the following are plant adaptations to low temperatures,except

Accepted Answer

A) shedding leaves at the onset of cold weather. 
B) production of antifreeze molecules. 
C) a shifting of Topt. 
D) increased photosynthetic rate to heat leaves. 
A) shedding leaves at the onset of cold weather. 
B) production of antifreeze molecules. 
C) a shifting of Topt. 
D) increased photosynthetic rate to heat leaves.

Question 9

Water moves from regions of high water potential to regions of low water potential.

Accepted Answer

A) True 
 B)False

Question 10

All life is made up of complex molecules built on a framework of ________ atoms.

Accepted Answer

The answer of All life is made up of complex...

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The light and dark reactions of photosynthesis occur in different areas of the chloroplast.

Accepted Answer

A) True 
 B)False

Question 13

Dehydration can be a problem for plants in cold habitats.

Accepted Answer

A) True 
 B)False

Question 14

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

Accepted Answer

The answer of A plant growing in the shade is...

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

Organisms that derive their energy from sunlight are referred to as

Accepted Answer

A) homotrophs. 
B) heterotrophs. 
C) chemoautotrophs. 
D) photoautotrophs. 
A) homotrophs. 
B) heterotrophs. 
C) chemoautotrophs. 
D) photoautotrophs.

Question 17

Allocating carbon to the production of roots increases access to water and soil nutrients but limits carbon allocation to the production of leaves.

Accepted Answer

A) True 
 B)False

Question 18

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 19

Compared with plants growing in shade,plants growing in sunlight tend to have smaller

Accepted Answer

A) stems. 
B) roots. 
C) leaves. 
D) flowers. 
A) stems. 
B) roots. 
C) leaves. 
D) flowers.

Question 20

Nutrients that are needed by plants in large amounts are called ________.

Accepted Answer

The answer of Nutrients that are needed by plants in...

Exam 6: Plant Adaptations to the Environment

Plants growing in shade tend to produce less rubisco and more chlorophyll than plants growing in full sun.

The C₄ photosynthetic pathway is most common in

Plants growing in low-nutrient environments have greater root production than plants living in high-nutrient environments.

The rates of photosynthesis and respiration in a plant are controlled by the temperature in the

Photoinhibition is the negative effect of high light levels on respiration.

In photosynthesis,the light-independent reactions do not directly require the presence of sunlight.

Submerged aquatic plants can take up CO₂ from the water in all of the following ways,except

All the following are plant adaptations to low temperatures,except

Water moves from regions of high water potential to regions of low water potential.

All life is made up of complex molecules built on a framework of ________ atoms.

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

The light and dark reactions of photosynthesis occur in different areas of the chloroplast.

Dehydration can be a problem for plants in cold habitats.

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

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

Organisms that derive their energy from sunlight are referred to as

Allocating carbon to the production of roots increases access to water and soil nutrients but limits carbon allocation to the production of leaves.

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.

Compared with plants growing in shade,plants growing in sunlight tend to have smaller

Nutrients that are needed by plants in large amounts are called ________.

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Adaptation and Natural Selection

Animal Adaptations to the Environment

Properties of Populations

Population Growth

Life History

Intraspecific Population Regulation

Species Interactions, population Dynamics, and Natural Selection

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Ecosystem Energetics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

The Ecology of Climate Change

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