Question 1

Nutrients that an organism needs in fairly large amounts are referred to as

Accepted Answer

A)   total nutrients.
B)   essential nutrients.
C)   macronutrients.
D)   solid nutrients.
E)   micronutrients.F) A) and E)
G) B) and C)

Question 2

"N" is the elemental symbol for

Accepted Answer

A)   neon.
B)   copper.
C)   nitrogen.
D)   magnesium.
E)   nickel.F) A) and E)
G) A) and B)

Question 3

Commercial fertilizer labels prominently display three numbers,which indicate the content of three elements needed by most plants as macronutrients.These elements in number sequence are

Accepted Answer

A)   carbon, sulfur, and nitrogen.
B)   zinc, magnesium, and potassium.
C)   nitrogen, phosphorus, and potassium.
D)   copper, nitrogen, and phosphorus.
E)   nitrogen, zinc, and copper.F) B) and D)
G) A) and C)

Question 4

Your professor brings in a soybean plant,having pulled it up roots and all from a nearby farm field.Small growths on the roots are shown to have bacteria,which the professor explains can "fix" nitrogen into a usable form for the plant.The growths are called

Accepted Answer

A)   sieve tubes.
B)   nodules.
C)   root hairs.
D)   nodes.
E)   internodes.F) C) and D)
G) A) and E)

Question 5

Chemicals that are vital to the metabolism,growth,and reproduction of plants are called essential elements.

Accepted Answer

A) True 
 B)False

Question 6

Carbon,hydrogen,and oxygen only account for about 50% of the dry weight of a plant.

Accepted Answer

A) True 
 B)False

Question 7

Soybeans will have several hundred Rhizobium nodules.A study in Minnesota found that soybeans grown without P2O5 fertilizer produced 23.0 bushels per acre,while adding 23 lbs of P2O5 per acre gave a yield of 37 bushels per acre.What is the best explanation for this observation?

Accepted Answer

A)   Rhizobium produces PO4 and NH4, so you do not need any fertilizer.
B)   Rhizobium produces PO4, so you do not need phosphorus-containing fertilizer.
C)   Rhizobium cannot produce PO4, so you need to add phosphorus-containing fertilizer.
D)   Rhizobium cannot produce NH4, so you need to add nitrogen-containing fertilizer.
E)   Rhizobium produces NH4, so you do not need nitrogen-containing fertilizer.F) C) and D)
G) A) and D)

Question 8

When a plant does not get enough water,it will wilt.This is due to which of the following?

Accepted Answer

A)   a decrease in osmosis in the stomata
B)   an increase in transpiration by the leaves
C)   an increase in sap moving through the xylem
D)   a decrease in turgor in the stem
E)   a decrease in sap moving through the phloemF) C) and D)
G) C) and E)

Question 9

Throughout a growing season,a plant uses up to 1000 liters (or kg) of water to produce just 1 kilogram of tissue.What happens to most of the remaining 999 kg of water?

Accepted Answer

A)   It is used in the cytoplasm.
B)   It is used in photosynthesis.
C)   It is used in hydrolysis reactions.
D)   It passes back through the roots into the soil.
E)   It evaporates.F) B) and D)
G) C) and E)

Question 10

In the absence of environmental sources of water,such as precipitation or condensation,how would water get into the pitcher of a carnivorous plant?

Accepted Answer

A)   through the xylem
B)   through the phloem
C)   from the leaves
D)   from the fruitE) None of the above
F) A) and D)

Question 11

The B horizon soil consists of most of the humus found in soil.

Accepted Answer

A) True 
 B)False

Question 12

If water is abundant,a plant's guard cells will ______________ and the stomata will _________________.

Accepted Answer

A)   swell; close
B)   collapse; open
C)   swell; open
D)   collapse; closeE) A) and C)
F) None of the above

Question 13

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

Question 14

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

Question 15

In many parts of the Everglades in Florida,excessive irrigation is lowering water levels and allowing salt water to enter the normally freshwater swamps.Why is this a problem for plants that have adapted to life in these swamps?

Accepted Answer

A)   The salt competes with minerals for uptake by the plants, limiting their growth.
B)   The plants cannot move sugars down the xylem if there is salt outside of the roots pulling water out.
C)   The plant roots cannot take up water if the soil salt concentration is high.
D)   Salts bind to nitrogen, preventing it from being taken up.
E)   Photosynthesis is inhibited by salt.F) C) and D)
G) A) and E)

Question 16

What is the cost of being a carnivorous plant?

Accepted Answer

A)   reduced mobility
B)   reduced respiration
C)   reduced photosynthesis
D)   reduced nutrients
E)   reduced waterF) A) and B)
G) D) and E)

Question 17

What structure does the pitcher of a carnivorous plant sprout from?

Accepted Answer

A)   stems
B)   leaves
C)   fruits
D)   roots
E)   stomataF) A) and C)
G) C) and D)

Question 18

Most carnivorous plants use their prey as a primary source of

Accepted Answer

A)   nitrogen.
B)   energy.
C)   potassium.
D)   carbon.
E)   magnesium.F) B) and E)
G) All of the above

Question 19

The products of photosynthesis move from the leaf to other parts of the plant via

Accepted Answer

A)   phloem and cortex.
B)   cortex.
C)   xylem and cortex.
D)   xylem.
E)   phloem.F) None of the above
G) B) and E)

Question 20

If water is scarce,a plant's guard cells will ______________ and the stomata will _________________.

Accepted Answer

A)   swell; open
B)   swell; close
C)   collapse; close
D)   collapse; openE) B) and C)
F) A) and B)

Exam 23: Plant Nutrition and Transport

Soybeans will have several hundred Rhizobium nodules.A study in Minnesota found that soybeans grown without P₂O₅ fertilizer produced 23.0 bushels per acre,while adding 23 lbs of P₂O₅ per acre gave a yield of 37 bushels per acre.What is the best explanation for this observation?

Correct Answer
verified

If water is scarce,a plant's guard cells will and the stomata will ___.

Correct Answer
verified

Your professor brings in a soybean plant,having pulled it up roots and all from a nearby farm field.Small growths on the roots are shown to have bacteria,which the professor explains can "fix" nitrogen into a usable form for the plant.The growths are called

Correct Answer
verified

Most carnivorous plants use their prey as a primary source of

Correct Answer
verified

Chemicals that are vital to the metabolism,growth,and reproduction of plants are called essential elements.

Correct Answer
verified

If water is abundant,a plant's guard cells will and the stomata will ___.

Correct Answer
verified

The products of photosynthesis move from the leaf to other parts of the plant via

Correct Answer
verified

Commercial fertilizer labels prominently display three numbers,which indicate the content of three elements needed by most plants as macronutrients.These elements in number sequence are

Correct Answer
verified

Carbon,hydrogen,and oxygen only account for about 50% of the dry weight of a plant.

Correct Answer
verified

In many parts of the Everglades in Florida,excessive irrigation is lowering water levels and allowing salt water to enter the normally freshwater swamps.Why is this a problem for plants that have adapted to life in these swamps?

Correct Answer
verified

What structure does the pitcher of a carnivorous plant sprout from?

Correct Answer
verified

The B horizon soil consists of most of the humus found in soil.

Correct Answer
verified

"N" is the elemental symbol for

Correct Answer
verified

When a plant does not get enough water,it will wilt.This is due to which of the following?

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

Nutrients that an organism needs in fairly large amounts are referred to as

Correct Answer
verified

In the absence of environmental sources of water,such as precipitation or condensation,how would water get into the pitcher of a carnivorous plant?

Correct Answer
verified

What is the cost of being a carnivorous plant?

Correct Answer
verified

Throughout a growing season,a plant uses up to 1000 liters (or kg) of water to produce just 1 kilogram of tissue.What happens to most of the remaining 999 kg of water?

Correct Answer
verified

Exam 23: Plant Nutrition and Transport

Soybeans will have several hundred Rhizobium nodules.A study in Minnesota found that soybeans grown without P2O5 fertilizer produced 23.0 bushels per acre,while adding 23 lbs of P2O5 per acre gave a yield of 37 bushels per acre.What is the best explanation for this observation?

Correct AnswerverifiedShow Answer

If water is scarce,a plant's guard cells will ______________ and the stomata will _________________.

Correct AnswerverifiedShow Answer

Your professor brings in a soybean plant,having pulled it up roots and all from a nearby farm field.Small growths on the roots are shown to have bacteria,which the professor explains can "fix" nitrogen into a usable form for the plant.The growths are called

Correct AnswerverifiedShow Answer

Most carnivorous plants use their prey as a primary source of

Correct AnswerverifiedShow Answer

Chemicals that are vital to the metabolism,growth,and reproduction of plants are called essential elements.

Correct AnswerverifiedShow Answer

If water is abundant,a plant's guard cells will ______________ and the stomata will _________________.

Correct AnswerverifiedShow Answer

The products of photosynthesis move from the leaf to other parts of the plant via

Correct AnswerverifiedShow Answer

Commercial fertilizer labels prominently display three numbers,which indicate the content of three elements needed by most plants as macronutrients.These elements in number sequence are

Correct AnswerverifiedShow Answer

Carbon,hydrogen,and oxygen only account for about 50% of the dry weight of a plant.

Correct AnswerverifiedShow Answer

In many parts of the Everglades in Florida,excessive irrigation is lowering water levels and allowing salt water to enter the normally freshwater swamps.Why is this a problem for plants that have adapted to life in these swamps?

Correct AnswerverifiedShow Answer

What structure does the pitcher of a carnivorous plant sprout from?

Correct AnswerverifiedShow Answer

The B horizon soil consists of most of the humus found in soil.

Correct AnswerverifiedShow Answer

"N" is the elemental symbol for

Correct AnswerverifiedShow Answer

When a plant does not get enough water,it will wilt.This is due to which of the following?

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

Nutrients that an organism needs in fairly large amounts are referred to as

Correct AnswerverifiedShow Answer

In the absence of environmental sources of water,such as precipitation or condensation,how would water get into the pitcher of a carnivorous plant?

Correct AnswerverifiedShow Answer

What is the cost of being a carnivorous plant?

Correct AnswerverifiedShow Answer

Throughout a growing season,a plant uses up to 1000 liters (or kg) of water to produce just 1 kilogram of tissue.What happens to most of the remaining 999 kg of water?

Correct AnswerverifiedShow Answer

Soybeans will have several hundred Rhizobium nodules.A study in Minnesota found that soybeans grown without P₂O₅ fertilizer produced 23.0 bushels per acre,while adding 23 lbs of P₂O₅ per acre gave a yield of 37 bushels per acre.What is the best explanation for this observation?

Correct Answer
verified

If water is scarce,a plant's guard cells will and the stomata will ___.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

If water is abundant,a plant's guard cells will and the stomata will ___.

Correct Answer
verified

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