Question 1

During drought stress a plant hormone called _____________________ causes the stomata of a plant's leaf to close.

Accepted Answer

A)  Abscisic acid
B)  Estrogen
C)  Ethylene
D)  Malic acid
E)  Cuprous oxideF) C) and D)
G) B) and D)

Question 2

Soybeans will have several hundred Rhizobium nodules per plant and may divert 20-30 percent of its energy generated by photosynthesis to the nodule instead of to other plant functions when the nodule is actively fixing nitrogen.Which of the following best describes Rhizobium?

Accepted Answer

A)  A soil fungus that invades the root
B)  A parasitic plant that invades the root
C)  A soil bacterium that invades the root
D)  A virus that invades the root
E)  A mycelium that invades the rootF) All of the above
G) A) and B)

Question 3

How would water get into the pitcher of a carnivorous plant?

Accepted Answer

A)  Through the phloem
B)  Through the xylem
C)  From rain
D)  From the leaves
E)  From the fruitF) B) and E)
G) All of the above B

Question 4

Mycorrhizal fungi decrease the ability of a plant's roots to absorb water.

Accepted Answer

A) True 
 B)False

Question 5

Carbon dioxide enters a plant from the atmosphere through pores called:

Accepted Answer

A)  Guard cells
B)  Companion cells
C)  Sieve tubes
D)  Plasmodesmata
E)  StomataF) A) and D)
G) A) and C)

Question 6

The opening and closing of a plant's stomata are regulated by the flow of _____________ ions:

Accepted Answer

A)  Phosphorous
B)  Magnesium
C)  Copper
D)  Sulfur
E)  PotassiumF) A) and C)
G) B) and D)

Question 7

The tendency of water molecules to "cling" together is:

Accepted Answer

A)  Cohesion
B)  Adhesion
C)  Hydrolysis
D)  Condensation
E)  EvaporationF) None of the above
G) A) and E)

Question 8

The evaporation of water from the leaf of a plant is:

Accepted Answer

A)  Totally prevented by the leaf's cuticle
B)  Hydrolysis
C)  Condensation
D)  Transpiration
E)  SublimationF) B) and C)
G) B) and E)

Question 9

The waxy ______________________ ensures that all of the water coming into a root moves into the xylem.

Accepted Answer

A)  Cuticle
B)  Epidermis
C)  Companion cells
D)  Sieve tubes
E)  Casparian stripF) B) and D)
G) A) and B)

Question 10

Figure 22.13 
-A normal pitcher has a narrow keel and a wide pitcher opening,maximizing the potential for trapping prey.On the other hand,a leaf optimized for photosynthesis has a wide keel and a small pitcher opening.Based on this observation and Figure 22.13,what conclusion can be drawn?

Accepted Answer

A)  High phosphorous correlated with increased photosynthetic ability
B)  High nitrogen correlated with increased photosynthetic ability
C)  High nitrogen correlated with increased trapping ability
D)  High phosphorous correlated with increased trapping abilityE) A) and C)
F) A) and B) B

Question 11

Which of the following will not increase the rate of transpiration in a plant?

Accepted Answer

A)  High humidity
B)  Low humidity
C)  High wind speeds
D)  High temperature
E)  All are correctF) B) and C)
G) D) and E)

Question 12

Carnivorous plants like Sarracenia purpurea are which of the following?

Accepted Answer

A)  Producers and detritivores
B)  Producers
C)  Producers and consumers
D)  Consumers
E)  DetritivoresF) A) and B)
G) C) and D)

Question 13

Nitrogen is needed in plants to manufacture:

Accepted Answer

A)  Amino acids
B)  Proteins
C)  Nucleic acids
D)  Chlorophyll
E)  All are correctF) A) and E)
G) A) and D)

Question 14

In the pressure flow theory,any part of a plant that does not carry out photosynthesis is a:

Accepted Answer

A)  Source
B)  Sink
C)  Reservoir
D)  Aqueduct
E)  Companion cellF) C) and D)
G) C) and E)

Question 15

How would a plant normally obtain nutrients like nitrogen and phosphorous?

Accepted Answer

A)  From the soil through its roots
B)  From animals through its pitcher
C)  From the air through its leaves
D)  From the sun through photosynthesis
E)  From the rain through its leavesF) D) and E)
G) A) and B)

Question 16

A typical mature tree consumes only about 5 gallons of water a day.

Accepted Answer

A) True 
 B)False

Question 17

The bacterium Rhizobium:

Accepted Answer

A)  Triggers the development of root nodules in legumes
B)  Enter plants through the root hairs
C)  Live symbiotically within plant cells
D)  Break the triple covalent bond in N2
E)  All are correctF) C) and E)
G) None of the above

Question 18

How does sap move from the sieve tube into a sink?

Accepted Answer

A)  By a pump
B)  By pressure
C)  By gravity
D)  By osmosis
E)  By active transportF) A) and C)
G) A) and E)

Question 19

Most carnivorous plants use their prey as a primary source of:

Accepted Answer

A)  Nitrogen
B)  Energy
C)  Carbon
D)  Magnesium
E)  PotassiumF) A) and D)
G) A) and B) A

Question 20

Scientists measured the pressure in the xylem of redwood trees at different heights and found that the higher they made their measurements,the lower the pressure.They extrapolated this to a pressure of zero,and concluded that the tallest a tree could grow is 122-130 meters.The tallest know tree on Earth is 112.7 meters.Which of the following most likely limits the height of trees?

Accepted Answer

A)  The amount of transpiration in leaves
B)  The amount of photosynthesis in leaves
C)  The amount of energy needed to pump water to the tops of the trees
D)  The strength of water cohesion
E)  The ability to take up CO2F) A) and E)
G) A) and B)

Exam 22: Plant Nutrition and Transport

During drought stress a plant hormone called _____________________ causes the stomata of a plant's leaf to close.

Correct Answer
verified

Soybeans will have several hundred Rhizobium nodules per plant and may divert 20-30 percent of its energy generated by photosynthesis to the nodule instead of to other plant functions when the nodule is actively fixing nitrogen.Which of the following best describes Rhizobium?

Correct Answer
verified

How would water get into the pitcher of a carnivorous plant?

Correct Answer
verified
B

Mycorrhizal fungi decrease the ability of a plant's roots to absorb water.

Correct Answer
verified

Carbon dioxide enters a plant from the atmosphere through pores called:

Correct Answer
verified

The opening and closing of a plant's stomata are regulated by the flow of _____________ ions:

Correct Answer
verified

The tendency of water molecules to "cling" together is:

Correct Answer
verified

The evaporation of water from the leaf of a plant is:

Correct Answer
verified

The waxy ______________________ ensures that all of the water coming into a root moves into the xylem.

Correct Answer
verified

Figure 22.13 -A normal pitcher has a narrow keel and a wide pitcher opening,maximizing the potential for trapping prey.On the other hand,a leaf optimized for photosynthesis has a wide keel and a small pitcher opening.Based on this observation and Figure 22.13,what conclusion can be drawn?

Correct Answer
verified
B

Which of the following will not increase the rate of transpiration in a plant?

Correct Answer
verified

Carnivorous plants like Sarracenia purpurea are which of the following?

Correct Answer
verified

Nitrogen is needed in plants to manufacture:

Correct Answer
verified

In the pressure flow theory,any part of a plant that does not carry out photosynthesis is a:

Correct Answer
verified

How would a plant normally obtain nutrients like nitrogen and phosphorous?

Correct Answer
verified

A typical mature tree consumes only about 5 gallons of water a day.

Correct Answer
verified

The bacterium Rhizobium:

Correct Answer
verified

How does sap move from the sieve tube into a sink?

Correct Answer
verified

Most carnivorous plants use their prey as a primary source of:

Correct Answer
verified
A

Correct Answer
verified

Exam 22: Plant Nutrition and Transport

During drought stress a plant hormone called _____________________ causes the stomata of a plant's leaf to close.

Correct AnswerverifiedShow Answer

Soybeans will have several hundred Rhizobium nodules per plant and may divert 20-30 percent of its energy generated by photosynthesis to the nodule instead of to other plant functions when the nodule is actively fixing nitrogen.Which of the following best describes Rhizobium?

Correct AnswerverifiedShow Answer

How would water get into the pitcher of a carnivorous plant?

Correct AnswerverifiedB

Mycorrhizal fungi decrease the ability of a plant's roots to absorb water.

Correct AnswerverifiedShow Answer

Carbon dioxide enters a plant from the atmosphere through pores called:

Correct AnswerverifiedShow Answer

The opening and closing of a plant's stomata are regulated by the flow of _____________ ions:

Correct AnswerverifiedShow Answer

The tendency of water molecules to "cling" together is:

Correct AnswerverifiedShow Answer

The evaporation of water from the leaf of a plant is:

Correct AnswerverifiedShow Answer

The waxy ______________________ ensures that all of the water coming into a root moves into the xylem.

Correct AnswerverifiedShow Answer

Figure 22.13 -A normal pitcher has a narrow keel and a wide pitcher opening,maximizing the potential for trapping prey.On the other hand,a leaf optimized for photosynthesis has a wide keel and a small pitcher opening.Based on this observation and Figure 22.13,what conclusion can be drawn?

Correct AnswerverifiedB

Which of the following will not increase the rate of transpiration in a plant?

Correct AnswerverifiedShow Answer

Carnivorous plants like Sarracenia purpurea are which of the following?

Correct AnswerverifiedShow Answer

Nitrogen is needed in plants to manufacture:

Correct AnswerverifiedShow Answer

In the pressure flow theory,any part of a plant that does not carry out photosynthesis is a:

Correct AnswerverifiedShow Answer

How would a plant normally obtain nutrients like nitrogen and phosphorous?

Correct AnswerverifiedShow Answer

A typical mature tree consumes only about 5 gallons of water a day.

Correct AnswerverifiedShow Answer

The bacterium Rhizobium:

Correct AnswerverifiedShow Answer

How does sap move from the sieve tube into a sink?

Correct AnswerverifiedShow Answer

Most carnivorous plants use their prey as a primary source of:

Correct AnswerverifiedA

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified