Question 1

Anthropogenic sources of fixed nitrogen are roughly half the amounts contributed by all other natural sources.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is correct?

Accepted Answer

A)  Nitrogen is an important element in amino acids,proteins,and cholesterol.
B)  Plants lacking a symbiotic nitrogen-fixing partner must rely on nitrogen compounds in the soil.
C)  Most commercial fertilizers contain nodules with nitrogen-fixing bacteria.
D)  A positive effect of nitrogen fertilizer application is that it can cause huge population increases of algae called "algal blooms."
E)  Humans have had little impact on the nitrogen cycle,even with the burning of fossil fuels.F) B) and E)
G) A) and D)

Question 3

Sixty percent of the soybean genome consists of which of the following?

Accepted Answer

A)  exons.
B)  introns.
C)  transposons.
D)  point mutations.
E)  regulatory DNA.F) A) and B)
G) A) and E)

Question 4

The average amount of protein in beans is ________ percent.

Accepted Answer

A)  5
B)  10
C)  15
D)  20
E)  25F) B) and E)
G) A) and B)

Question 5

Which of the following oils is not correctly paired with the type of oil it is?

Accepted Answer

A)  sunflower :: nondrying
B)  soy :: drying
C)  castor bean :: nondrying
D)  sunflower :: semidrying
E)  tung :: dryingF) A) and B)
G) B) and D)

Question 6

Which leguminous tree has been nicknamed "Jack's beanstalk" because of its amazing growth rate?

Accepted Answer

A)  winged bean
B)  leucaena
C)  groundnut
D)  lesquerella
E)  soybeanF) B) and E)
G) A) and C) B

Question 7

The cultivated peanut is known to be a natural hybrid of two wild diploid species:

Accepted Answer

A)  Arachis duranensis and Arachis ipaensis
B)  Arachis duranensis and arachnids
C)  Aesclepias tuborosa and Arachis ipaensis
D)  Glycine max and Arachis ipaensis
E)  None of the above are correct.F) A) and D)
G) C) and E)

Question 8

________ is a relatively non-polluting fuel developed from vegetable oils that can substitute for petroleum-derived products.

Accepted Answer

The answer of ________ is a relatively non-polluting fuel developed...

Question 9

The peanut,Arachis hypogaea,is a very unusual plant because of which of the following?

Accepted Answer

A)  After pollination,the flower stalk elongates and pushes the developing fruit into the soil.
B)  The erect bean stalk can reach over 30 meters in height.
C)  The embryo has only one cotyledon.
D)  The peanut butter is nutritionally superior to almond butter.
E)  None of the above are correct.F) A) and C)
G) C) and D)

Question 10

Legumes are an excellent source of high-quality protein.

Accepted Answer

A) True 
 B)False

Question 11

What is one disadvantage of planting hybrid seed?

Accepted Answer

A)  Seed must be purchased anew each time there is a planting.
B)  Hybrid plants are less vigorous.
C)  Yields are less than with non-hybrid plants.
D)  Hybrid plants are more susceptible to diseases.
E)  All of these are disadvantages to planting hybrid seed.F) C) and D)
G) All of the above A

Question 12

This legume is grown mainly in Mesoamerica and is a tropical vine.The part eaten is the tuberous roots.This legume is called:

Accepted Answer

A)  jicama
B)  groundnut
C)  carob
D)  tamarind
E)  tuba-rootF) A) and B)
G) A) and C)

Question 13

Legumes are members of the bean family,Fabaceae,which also includes alfalfa,clover,and corn.

Accepted Answer

A) True 
 B)False

Question 14

Which one of the following is not one of the many uses of Leucaena leucocephala?

Accepted Answer

A)  edible seeds
B)  firewood
C)  making furniture
D)  restoring soil fertility
E)  producing lecithinF) A) and B)
G) A) and C) E

Question 15

The most widely grown forage legume is which of the following?

Accepted Answer

A)  Pisum sativum
B)  Arachis hypogea
C)  Vicia faba
D)  Glycine max
E)  Medicago sativaF) All of the above
G) C) and D)

Question 16

Which legume is considered the "Cinderella Crop"?

Accepted Answer

A)  peas
B)  lentils
C)  green beans
D)  soybeans
E)  string beansF) A) and B)
G) B) and C)

Question 17

Which of the following types of oil can form a thin waterproof,elastic film?

Accepted Answer

A)  drying
B)  semidrying
C)  nondrying
D)  wetting
E)  All of these types of oil can form a thin waterproof,elastic filmF) A) and E)
G) B) and D)

Question 18

Most legumes share very similar flower and fruit structures.The fruit is commonly classified as which one of the following?

Accepted Answer

A)  pod
B)  umbel
C)  raceme
D)  nut
E)  None of the above are correctF) C) and E)
G) None of the above

Question 19

How is alfalfa an important tool in biotechnology?

Accepted Answer

A)  Its cells readily incorporate novel genes.
B)  It is easy to cross alfalfa with almost any other plant.
C)  Its DNA hybridizes with animal DNA.
D)  Its cells clone easily.
E)  None of the above are correct.F) None of the above
G) B) and E)

Question 20

Bacteria found in nodules in the roots of legumes can convert atmospheric nitrogen into nitrates,a form usable to plants by a process known as nitrogen ________.

Accepted Answer

The answer of Bacteria found in nodules in the roots...

Exam 13: Legumes

Anthropogenic sources of fixed nitrogen are roughly half the amounts contributed by all other natural sources.

Correct AnswerverifiedShow Answer

Which of the following is correct?

Correct AnswerverifiedShow Answer

Sixty percent of the soybean genome consists of which of the following?

Correct AnswerverifiedShow Answer

The average amount of protein in beans is ________ percent.

Correct AnswerverifiedShow Answer

Which of the following oils is not correctly paired with the type of oil it is?

Correct AnswerverifiedShow Answer

Which leguminous tree has been nicknamed "Jack's beanstalk" because of its amazing growth rate?

Correct AnswerverifiedB

The cultivated peanut is known to be a natural hybrid of two wild diploid species:

Correct AnswerverifiedShow Answer

________ is a relatively non-polluting fuel developed from vegetable oils that can substitute for petroleum-derived products.

Correct AnswerverifiedShow Answer

The peanut,Arachis hypogaea,is a very unusual plant because of which of the following?

Correct AnswerverifiedShow Answer

Legumes are an excellent source of high-quality protein.

Correct AnswerverifiedShow Answer

What is one disadvantage of planting hybrid seed?

Correct AnswerverifiedA

This legume is grown mainly in Mesoamerica and is a tropical vine.The part eaten is the tuberous roots.This legume is called:

Correct AnswerverifiedShow Answer

Legumes are members of the bean family,Fabaceae,which also includes alfalfa,clover,and corn.

Correct AnswerverifiedShow Answer

Which one of the following is not one of the many uses of Leucaena leucocephala?

Correct AnswerverifiedE

The most widely grown forage legume is which of the following?

Correct AnswerverifiedShow Answer

Which legume is considered the "Cinderella Crop"?

Correct AnswerverifiedShow Answer

Which of the following types of oil can form a thin waterproof,elastic film?

Correct AnswerverifiedShow Answer

Most legumes share very similar flower and fruit structures.The fruit is commonly classified as which one of the following?

Correct AnswerverifiedShow Answer

How is alfalfa an important tool in biotechnology?

Correct AnswerverifiedShow Answer

Bacteria found in nodules in the roots of legumes can convert atmospheric nitrogen into nitrates,a form usable to plants by a process known as nitrogen ________.

Correct AnswerverifiedShow Answer

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B

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A

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E

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