Question 1

Which of the following enters a plant via its stomata?

Accepted Answer

A) CO₂ 
B) H₂O 
C) phosphorus 
D) O₂ 
A) CO₂ 
B) H₂O 
C) phosphorus 
D) O₂

Question 2

________ tissue provides vertical support to the plant and elevates leaves.

Accepted Answer

The answer of ________ tissue provides vertical support to the...

Question 3

Explain how the allocation of carbon to plant roots influences net carbon gain by plants.

Accepted Answer

The allocation of carbon to plant roots

Question 4

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

Accepted Answer

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

Question 5

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 6

CAM plants fix CO₂

Accepted Answer

A) ᵢntₒ ₒₓₐlₒₐcₑtₐtₑ ₍OAA₎. 
B) ₐt nᵢght. 
C) in mesophyll cells. 
D) only when it is raining. 
A) ᵢntₒ ₒₓₐlₒₐcₑtₐtₑ ₍OAA₎. 
B) ₐt nᵢght. 
C) in mesophyll cells. 
D) only when it is raining.

Question 7

Plants determine when to flower based on environmental cues. Identify three categories of plants and what cues they use.

Accepted Answer

1. Day-neutral: use rainfall o

Question 8

The portion of sunlight that is available to plants for photosynthesis is called ________.

Accepted Answer

photosynth

Question 9

The pigment that absorbs light energy (photons)in photosynthesis is

Accepted Answer

A) Rubisco. 
B) chlorophyll. 
C) PEP. 
D) CAM. 
A) Rubisco. 
B) chlorophyll. 
C) PEP. 
D) CAM.

Question 10

The diffusion of CO₂ in water is ________ than the diffusion of CO₂ in air.

Accepted Answer

The answer of The diffusion of CO₂ in water is...

Question 11

Which of the following statements is FALSE?

Accepted Answer

A) PEP carboxylase has a low affinity for oxygen. 
B) CO₂ is initially fixed into oxaloacetate (OA
A) in the mesophyll cell. 
C) C₄ plants have a lower water use efficiency than C₃ plants. 
D) C₄ plants are mostly grasses. 
A) PEP carboxylase has a low affinity for oxygen. 
B) CO₂ is initially fixed into oxaloacetate (OA
A) in the mesophyll cell. 
C) C₄ plants have a lower water use efficiency than C₃ plants. 
D) C₄ plants are mostly grasses.

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Plants adapted to low-nutrient environments attain maximum growth rate at much lower nitrogen levels than high-nutrient plants.

Accepted Answer

A) True 
 B)False

Question 14

Explain why a plant growing in waterlogged soil suffers similar symptoms to a plant exposed to drought conditions. Describe the responses these plants can make to survive in such extreme environments.

Accepted Answer

A plant growing in waterlogged soil suff

Exam 6: Plant Adaptations to the Environment

Which of the following enters a plant via its stomata?

________ tissue provides vertical support to the plant and elevates leaves.

Explain how the allocation of carbon to plant roots influences net carbon gain by plants.

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

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

CAM plants fix CO₂

Plants determine when to flower based on environmental cues. Identify three categories of plants and what cues they use.

The portion of sunlight that is available to plants for photosynthesis is called ________.

The pigment that absorbs light energy (photons)in photosynthesis is

The diffusion of CO₂ in water is ________ than the diffusion of CO₂ in air.

Which of the following statements is FALSE?

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

Plants adapted to low-nutrient environments attain maximum growth rate at much lower nitrogen levels than high-nutrient plants.

Explain why a plant growing in waterlogged soil suffers similar symptoms to a plant exposed to drought conditions. Describe the responses these plants can make to survive in such extreme environments.

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

Conservation Ecology

Global Climate Change

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