Question 1

Choose the appropriate category of general plant nutritional requirement for each element given below.
-zinc

Accepted Answer

A) nonmineral macronutrient 
B) mineral macronutrient 
C) micronutrient 
D) not generally considered an essential nutrient 
A) nonmineral macronutrient 
B) mineral macronutrient 
C) micronutrient 
D) not generally considered an essential nutrient

Question 2

Choose the appropriate category of general plant nutritional requirement for each element given below.
-nickel

Accepted Answer

A) nonmineral macronutrient 
B) mineral macronutrient 
C) micronutrient 
D) not generally considered an essential nutrient 
A) nonmineral macronutrient 
B) mineral macronutrient 
C) micronutrient 
D) not generally considered an essential nutrient

Question 3

Which of the following elements is NOT considered an essential micronutrient for plants in general, but is required by horsetails and perhaps some grasses such as wheat?

Accepted Answer

A)  gold 
B)  boron 
C)  silicon 
D)  zinc 
A)  gold 
B)  boron 
C)  silicon 
D)  zinc

Question 4

Which of the following is converted inside root cells into its product, which is then rapidly used to synthesize organic molecules?

Accepted Answer

A)  NH4+ is converted to NO3 
B)  N2 is converted to NO3 
C)  NO3 
D)  NH is converted to NH4+. 
A)  NH4+ is converted to NO3 
B)  N2 is converted to NO3 
C)  NO3 
D)  NH is converted to NH4+.

Question 5

Which of the following comprise(s) more than 90% of the weight of plant tissues?

Accepted Answer

A)  carbohydrates 
B)  water 
C)  carbon 
D)  nitrogen 
A)  carbohydrates 
B)  water 
C)  carbon 
D)  nitrogen

Question 6

What is the process of producing NH4+ from decaying organic material called?

Accepted Answer

A)  nitrification 
B)  ammonification 
C)  nitrogen cycling 
D)  nitrogen fixation 
A)  nitrification 
B)  ammonification 
C)  nitrogen cycling 
D)  nitrogen fixation

Question 7

What will a mutant soybean plant that is unable to produce leghemoglobin most likely suffer from?

Accepted Answer

A)  deficiency in magnesium 
B)  deficiency in potassium 
C)  deficiency in oxygen 
D)  deficiency in nitrogen 
A)  deficiency in magnesium 
B)  deficiency in potassium 
C)  deficiency in oxygen 
D)  deficiency in nitrogen

Question 8

Studies of a soybean plant (Glycine max) and the bacterium Bradyrhizobium japonicum have shown that the tip of a root hair curls toward the bacteria as a response to which of the following?

Accepted Answer

A)  a flavonoid released by soybean roots 
B)  nod gene products produced by soybean roots 
C)  nod gene products produced by the bacterium 
D)  nitrogen fixation by the bacterium 
A)  a flavonoid released by soybean roots 
B)  nod gene products produced by soybean roots 
C)  nod gene products produced by the bacterium 
D)  nitrogen fixation by the bacterium

Question 9

Trace the route of most mineral ions from entering a plant to being used for the plant's metabolic reactions.

Accepted Answer

Most mineral ions enter plants through r

Question 10

What are the most common deficiency symptoms and what process is most affected?

Accepted Answer

Leaf chlorosis is a symptom found in 5 o

Question 11

Choose the appropriate category of general plant nutritional requirement for each element given below.
-potassium

Accepted Answer

A) nonmineral macronutrient 
B) mineral macronutrient 
C) micronutrient 
D) not generally considered an essential nutrient 
A) nonmineral macronutrient 
B) mineral macronutrient 
C) micronutrient 
D) not generally considered an essential nutrient

Question 12

A common consequence of nutrient deficiencies in plants is chlorosis. What is chlorosis?

Accepted Answer

A)  It is death of the growing tips. 
B)  It is premature loss of leaves. 
C)  It is bursting of cells from excess water uptake due to an inability to clear chlorine from them. 
D)  It is yellowing of plant tissues due to a lack of chlorophyll. 
A)  It is death of the growing tips. 
B)  It is premature loss of leaves. 
C)  It is bursting of cells from excess water uptake due to an inability to clear chlorine from them. 
D)  It is yellowing of plant tissues due to a lack of chlorophyll.

Question 13

What are soil mineral particles that range from 0.02 - 0.002 mm in diameter called?

Accepted Answer

A)  sand 
B)  humus 
C)  clay 
D)  silt 
A)  sand 
B)  humus 
C)  clay 
D)  silt

Question 14

Roots obtain cations through cation exchange. Which of the following do roots use to exchange for other cations from the soil?

Accepted Answer

A)  Cl- 
B)  K+ 
C)  H+ 
D)  H2O 
A)  Cl- 
B)  K+ 
C)  H+ 
D)  H2O

Question 15

Which of the following does NOT describe tropical rainforests?

Accepted Answer

A)  Tropical rainforests are biologically diverse ecosystems. 
B)  Tropical rainforest soils have high acidity. 
C)  Minerals such as calcium and phosphorus are subject to leaching from the upper tropical rainforest soil level. 
D)  Tropical rainforest soils are extremely rich in nutrients. 
A)  Tropical rainforests are biologically diverse ecosystems. 
B)  Tropical rainforest soils have high acidity. 
C)  Minerals such as calcium and phosphorus are subject to leaching from the upper tropical rainforest soil level. 
D)  Tropical rainforest soils are extremely rich in nutrients.

Question 16

What is the potential significance of root exudates?

Accepted Answer

Root exudates are organic compounds such

Question 17

Which of the following elements is considered an essential micronutrient for plants?

Accepted Answer

A)  calcium 
B)  lithium 
C)  sulfur 
D)  nickel 
A)  calcium 
B)  lithium 
C)  sulfur 
D)  nickel

Question 18

What is leghemoglobin, which contains an iron-containing heme group, used for?

Accepted Answer

A)  to remove O2 from roots 
B)  to produce H2O from O2 
C)  to deliver O2 to bacteroids 
D)  to transport O2 in the xylem 
A)  to remove O2 from roots 
B)  to produce H2O from O2 
C)  to deliver O2 to bacteroids 
D)  to transport O2 in the xylem

Question 19

Which soil region is the most fertile soil layer where the roots of most herbaceous plants are located?

Accepted Answer

A)  A horizon 
B)  B horizon 
C)  C horizon 
D)  O horizon 
A)  A horizon 
B)  B horizon 
C)  C horizon 
D)  O horizon

Question 20

Research in Colorado's San Juan Mountains compared stands of lodgepole pine and Engelmann spruce with stands of trembling aspen. Compared to the other two, the aspen soil had all the following EXCEPT which?

Accepted Answer

A)  higher temperatures 
B)  more nitrate 
C)  different arrays of organisms 
D)  more phosphorus 
A)  higher temperatures 
B)  more nitrate 
C)  different arrays of organisms 
D)  more phosphorus

Exam 36: Plant Nutrition

Choose the appropriate category of general plant nutritional requirement for each element given below. -zinc

Choose the appropriate category of general plant nutritional requirement for each element given below. -nickel

Which of the following elements is NOT considered an essential micronutrient for plants in general, but is required by horsetails and perhaps some grasses such as wheat?

Which of the following is converted inside root cells into its product, which is then rapidly used to synthesize organic molecules?

Which of the following comprise(s) more than 90% of the weight of plant tissues?

What is the process of producing NH4+ from decaying organic material called?

What will a mutant soybean plant that is unable to produce leghemoglobin most likely suffer from?

Studies of a soybean plant (Glycine max) and the bacterium Bradyrhizobium japonicum have shown that the tip of a root hair curls toward the bacteria as a response to which of the following?

Trace the route of most mineral ions from entering a plant to being used for the plant's metabolic reactions.

What are the most common deficiency symptoms and what process is most affected?

Choose the appropriate category of general plant nutritional requirement for each element given below. -potassium

A common consequence of nutrient deficiencies in plants is chlorosis. What is chlorosis?

What are soil mineral particles that range from 0.02 - 0.002 mm in diameter called?

Roots obtain cations through cation exchange. Which of the following do roots use to exchange for other cations from the soil?

Which of the following does NOT describe tropical rainforests?

What is the potential significance of root exudates?

Which of the following elements is considered an essential micronutrient for plants?

What is leghemoglobin, which contains an iron-containing heme group, used for?

Which soil region is the most fertile soil layer where the roots of most herbaceous plants are located?

Research in Colorado's San Juan Mountains compared stands of lodgepole pine and Engelmann spruce with stands of trembling aspen. Compared to the other two, the aspen soil had all the following EXCEPT which?

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What is the process of producing NH₄⁺ from decaying organic material called?