Question 1

In the section "Investigating Life: The Hidden Cost of Traps",what was the independent variable?

Accepted Answer

A)  the amount of nitrogen or phosphorous added to the pitcher of each plant
B)  the number of insects fed to each plant
C)  the amount of nitrogen or phosphorous added to the roots of each plant
D)  the ratio of the pitcher opening to pitcher length
E)  the ratio of the keel width to total widthF) A) and E)
G) C) and D)

Question 2

In the section "Investigating Life: The Hidden Cost of Traps",nitrogen is used in plant cells to produce which of the following?

Accepted Answer

A)  both sugars and nucleic acids
B)  proteins only
C)  both proteins and nucleic acids
D)  sugars only
E)  nucleic acids onlyF) A) and D)
G) A) and E)

Question 3

If a plant exhibits a pattern of indeterminate growth,it stops growing when it reaches mature size.

Accepted Answer

A) True 
 B)False

Question 4

The bacterium Rhizobium

Accepted Answer

A)  triggers the development of root nodules in legumes.
B)  enters plants through the root hairs.
C)  lives symbiotically within plant cells.
D)  breaks the triple covalent bond in N2.
E)  All answers are correct.F) None of the above
G) A) and B)

Question 5

In the section "Investigating Life: The Hidden Cost of Traps",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 the figure,what conclusion can be drawn?

Accepted Answer

A)  High phosphorus correlated with increased photosynthetic ability.
B)  High nitrogen correlated with increased photosynthetic ability.
C)  High nitrogen correlated with increased trapping ability.
D)  High phosphorus correlated with increased trapping ability.E) B) and D)
F) All of the above

Question 6

The epidermis of a plant leaf is usually many layers thick and carries out most of the photosynthesis in a leaf.

Accepted Answer

A) True 
 B)False

Question 7

Soybeans will have several hundred Rhizobium nodules.A study in Minnesota found that soybeans grown without ammonium sulfate fertilizer produced 52.4 bushels per acre,while adding 75 lbs of ammonium sulfate per acre gave a yield of 54.2 bushels per acre.What is the best explanation for this observation?

Accepted Answer

A)  Rhizobium produces PO4 and NH4+,so you don't need any fertilizer.
B)  Rhizobium produces NH4+,so you don't need fertilizer that contains N.
C)  Rhizobium produces PO4,so you don't need fertilizer that contains P.
D)  Rhizobium cannot produce NH4+,so you need to add fertilizer that contains N.
E)  Rhizobium cannot produce PO4,so you need to add P-containing fertilizer.F) A) and B)
G) C) and E)

Question 8

The patch of actively dividing cells that is found near the tip of roots and shoots of plants is/are the

Accepted Answer

A)  apical meristem only.
B)  lateral meristem only.
C)  apical and lateral meristems.
D)  tracheiD.
E)  vascular bundlE.F) None of the above
G) A) and D)

Question 9

If water were being pushed from below,air bubbles in the xylem stream would not pose a problem.However,the observation that air bubbles can interrupt xylem function provides important evidence supporting the _______ theory of water movement.

Accepted Answer

A)  gravity-suction
B)  active transport
C)  pressure-flow
D)  osmotic
E)  cohesion-tensionF) C) and D)
G) D) and E)

Question 10

Which of the following is a vegetative part of the plant?

Accepted Answer

A)  A
B)  D
C)  G
D)  All answers are correct.
E)  FF) B) and E)
G) A) and B)

Question 11

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 D)
G) C) and E)

Question 12

In the spring before the leaves come out,maple trees are often tapped to collect sap to make syrup.The sugars were stored in the wood of the tree as starch and then released as temperatures rise above freezing in late winter.Which of the following tissues would contain the starch over the winter?

Accepted Answer

A)  xylem
B)  phloem
C)  parenchyma tissue
D)  collenchyma tissue
E)  rootsF) C) and D)
G) A) and D)

Question 13

The ________________ transport(s) water and dissolved minerals from the roots of the plant to the shoots of the plant.

Accepted Answer

A)  xylem
B)  guard cells
C)  phloem
D)  epidermis
E)  stomataF) All of the above
G) B) and D)

Question 14

One way to kill a tree is to girdle it by cutting a groove a centimeter into the bark all around the trunk of the tree.The tree will typically survive that growing season,but will die over the winter.Which of the following is the best explanation for this observation?

Accepted Answer

A)  The phloem was cut,so water and nutrients cannot be taken up to the leaves.
B)  The xylem was cut,so sugars cannot be transported to the roots.
C)  The xylem was cut,so water and nutrients cannot be taken up to the leaves.
D)  Cutting the bark allows access to pathogens that kill the tree.
E)  The phloem was cut,so sugars cannot be transported to the roots.F) C) and E)
G) D) and E)

Question 15

In the section "Investigating Life: The Hidden Cost of Traps",what hypothesis were the researchers testing?

Accepted Answer

A)  Providing extra nutrients would reduce the need for extra leaves.
B)  Providing extra light would increase leaf production.
C)  Providing extra light would increase the need for nutrients.
D)  Cutting leaves would diminish the need for more nutrients.
E)  Providing extra nutrients would increase leaf production.F) A) and B)
G) A) and C)

Question 16

Grasses and other monocots usually have fibrous root systems.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A)  phosphorus
B)  magnesium
C)  copper
D)  sulfur
E)  potassiumF) A) and E)
G) B) and E)

Question 18

Which of the following correctly describes the plants in the figure?

Accepted Answer

A)  nonreproductive
B)  seedless
C)  woody
D)  herbaceous
E)  aquaticF) A) and E)
G) A) and D)

Question 19

The shoot of a plant is the above-ground part of a plant.

Accepted Answer

A) True 
 B)False

Question 20

A waxy layer secreted by the epidermal cells of a plant is the

Accepted Answer

A)  stomatA.
B)  cuticle.
C)  guard cell.
D)  xylem.
E)  phloem.F) A) and E)
G) B) and E)

Exam 21: Plant Form and Function

Correct Answer
verified

One way to kill a tree is to girdle it by cutting a groove a centimeter into the bark all around the trunk of the tree.The tree will typically survive that growing season,but will die over the winter.Which of the following is the best explanation for this observation?

Correct Answer
verified

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

Correct Answer
verified

The shoot of a plant is the above-ground part of a plant.

Correct Answer
verified

A waxy layer secreted by the epidermal cells of a plant is the

Correct Answer
verified

The epidermis of a plant leaf is usually many layers thick and carries out most of the photosynthesis in a leaf.

Correct Answer
verified

If a plant exhibits a pattern of indeterminate growth,it stops growing when it reaches mature size.

Correct Answer
verified

Grasses and other monocots usually have fibrous root systems.

Correct Answer
verified

In the section "Investigating Life: The Hidden Cost of Traps",what was the independent variable?

Correct Answer
verified

In the spring before the leaves come out,maple trees are often tapped to collect sap to make syrup.The sugars were stored in the wood of the tree as starch and then released as temperatures rise above freezing in late winter.Which of the following tissues would contain the starch over the winter?

Correct Answer
verified

The patch of actively dividing cells that is found near the tip of roots and shoots of plants is/are the

Correct Answer
verified

The ________________ transport(s) water and dissolved minerals from the roots of the plant to the shoots of the plant.

Correct Answer
verified

If water were being pushed from below,air bubbles in the xylem stream would not pose a problem.However,the observation that air bubbles can interrupt xylem function provides important evidence supporting the _______ theory of water movement.

Correct Answer
verified

Correct Answer
verified

Which of the following is a vegetative part of the plant?

Correct Answer
verified

In the section "Investigating Life: The Hidden Cost of Traps",what hypothesis were the researchers testing?

Correct Answer
verified

In the section "Investigating Life: The Hidden Cost of Traps",nitrogen is used in plant cells to produce which of the following?

Correct Answer
verified

The bacterium Rhizobium

Correct Answer
verified

Which of the following correctly describes the plants in the figure?

Correct Answer
verified

Correct Answer
verified

Exam 21: Plant Form and Function

Correct AnswerverifiedShow Answer

One way to kill a tree is to girdle it by cutting a groove a centimeter into the bark all around the trunk of the tree.The tree will typically survive that growing season,but will die over the winter.Which of the following is the best explanation for this observation?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The shoot of a plant is the above-ground part of a plant.

Correct AnswerverifiedShow Answer

A waxy layer secreted by the epidermal cells of a plant is the

Correct AnswerverifiedShow Answer

The epidermis of a plant leaf is usually many layers thick and carries out most of the photosynthesis in a leaf.

Correct AnswerverifiedShow Answer

If a plant exhibits a pattern of indeterminate growth,it stops growing when it reaches mature size.

Correct AnswerverifiedShow Answer

Grasses and other monocots usually have fibrous root systems.

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Hidden Cost of Traps",what was the independent variable?

Correct AnswerverifiedShow Answer

In the spring before the leaves come out,maple trees are often tapped to collect sap to make syrup.The sugars were stored in the wood of the tree as starch and then released as temperatures rise above freezing in late winter.Which of the following tissues would contain the starch over the winter?

Correct AnswerverifiedShow Answer

The patch of actively dividing cells that is found near the tip of roots and shoots of plants is/are the

Correct AnswerverifiedShow Answer

The ________________ transport(s) water and dissolved minerals from the roots of the plant to the shoots of the plant.

Correct AnswerverifiedShow Answer

If water were being pushed from below,air bubbles in the xylem stream would not pose a problem.However,the observation that air bubbles can interrupt xylem function provides important evidence supporting the _______ theory of water movement.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is a vegetative part of the plant?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Hidden Cost of Traps",what hypothesis were the researchers testing?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Hidden Cost of Traps",nitrogen is used in plant cells to produce which of the following?

Correct AnswerverifiedShow Answer

The bacterium Rhizobium

Correct AnswerverifiedShow Answer

Which of the following correctly describes the plants in the figure?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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