Question 1

Which one of the following is considered to be an important plant hormone that helps plants cope with environmental stresses?

Accepted Answer

A)  Auxins
B)  Prostaglandins
C)  Ethylene
D)  Abscisic acid
E)  CytokininsF) A) and D)
G) A) and B)

Question 2

In roots auxins tend to ________ cell elongation,in stems they promote cell elongation.

Accepted Answer

A)  promote
B)  not influence
C)  have little effect on
D)  not be a factor in
E)  inhibitF) A) and D)
G) A) and E)

Question 3

Which of the following is the role of calcium-dependent protein kinases?

Accepted Answer

A)  receptor molecule
B)  affector molecule
C)  messenger molecule
D)  effector molecule
E)  all of the choicesF) A) and D)
G) C) and D)

Question 4

Short-day plants are those that flower only when the night period of a plant is:

Accepted Answer

A)  longer than a defined period
B)  shorter than 12 hours
C)  followed by short periods of light interruptions
D)  less than that in summer
E)  longer than 12 hoursF) A) and E)
G) B) and D)

Question 5

Roots contain starch-heavy plastids known as:

Accepted Answer

A)  chloroplasts
B)  plastoplasts
C)  chromoplasts
D)  statoliths
E)  strongolithsF) A) and D)
G) None of the above

Question 6

Plants have been shown to elicit defense responses upon recognition of part of the bacterial flagella,a structure important for bacterial locomotion.The flagella is likely to be sensed by:

Accepted Answer

A)  hormones.
B)  the product of a resistance gene.
C)  jasmonic acid.
D)  elicitors.E) All of the above
F) A) and B)

Question 7

Plant roots that are in a horizontal position grow down because:

Accepted Answer

A)  Cells on the upper side elongate more than those on the lower side.
B)  Auxins are stimulating cells on the lower side to elongate more.
C)  Auxins are being pulled to the upper side.
D)  Auxins are having no influence on this process.
E)  Statoliths are pushing auxins to the upper sidE.F) A) and B)
G) A) and C)

Question 8

You are studying a plant with mutant,non-functional PIN proteins.Assuming this plant could otherwise develop normally,predict how you might expect this plant to respond to directional light.

Accepted Answer

A)  The plant will bend toward the light.
B)  The plant will bend away from the light.
C)  The plant will not move in response to light.
D)  The plant will move randomly.E) A) and B)
F) A) and C)

Question 9

You leave for winter vacation and forget to water your plants for two whole weeks! You also turned down the heat and closed the blinds.What hormone is most likely to be produced in response to these conditions?

Accepted Answer

A)  Gibberellins
B)  Abscisic acid
C)  Cytokinins
D)  AuxinsE) None of the above
F) B) and C)

Question 10

One application of auxins is its use in the production of:

Accepted Answer

A)  fruit overgrowth
B)  fruit size increase
C)  fruit ripening
D)  fruit lacking seeds
E)  None of these is correctF) B) and C)
G) A) and B)

Question 11

You isolate a plant that expresses a phytochrome mutant that is always in the Pfr form.You expect these plants will germinate:

Accepted Answer

A)  not at all.
B)  regardless of the light conditions.
C)  later than normal plants.
D)  similarly to normal plants.E) B) and D)
F) A) and C)

Exam 28: Flowering Plants: Plant Behavior

You leave for winter vacation and forget to water your plants for two whole weeks! You also turned down the heat and closed the blinds.What hormone is most likely to be produced in response to these conditions?

Correct Answer
verified

You isolate a plant that expresses a phytochrome mutant that is always in the P_fr form.You expect these plants will germinate:

Correct Answer
verified

You are studying a plant with mutant,non-functional PIN proteins.Assuming this plant could otherwise develop normally,predict how you might expect this plant to respond to directional light.

Correct Answer
verified

Which of the following is the role of calcium-dependent protein kinases?

Correct Answer
verified

Roots contain starch-heavy plastids known as:

Correct Answer
verified

Plant roots that are in a horizontal position grow down because:

Correct Answer
verified

Plants have been shown to elicit defense responses upon recognition of part of the bacterial flagella,a structure important for bacterial locomotion.The flagella is likely to be sensed by:

Correct Answer
verified

In roots auxins tend to ________ cell elongation,in stems they promote cell elongation.

Correct Answer
verified

Which one of the following is considered to be an important plant hormone that helps plants cope with environmental stresses?

Correct Answer
verified

Short-day plants are those that flower only when the night period of a plant is:

Correct Answer
verified

One application of auxins is its use in the production of:

Correct Answer
verified

Exam 28: Flowering Plants: Plant Behavior

You leave for winter vacation and forget to water your plants for two whole weeks! You also turned down the heat and closed the blinds.What hormone is most likely to be produced in response to these conditions?

Correct AnswerverifiedShow Answer

You isolate a plant that expresses a phytochrome mutant that is always in the Pfr form.You expect these plants will germinate:

Correct AnswerverifiedShow Answer

You are studying a plant with mutant,non-functional PIN proteins.Assuming this plant could otherwise develop normally,predict how you might expect this plant to respond to directional light.

Correct AnswerverifiedShow Answer

Which of the following is the role of calcium-dependent protein kinases?

Correct AnswerverifiedShow Answer

Roots contain starch-heavy plastids known as:

Correct AnswerverifiedShow Answer

Plant roots that are in a horizontal position grow down because:

Correct AnswerverifiedShow Answer

Plants have been shown to elicit defense responses upon recognition of part of the bacterial flagella,a structure important for bacterial locomotion.The flagella is likely to be sensed by:

Correct AnswerverifiedShow Answer

In roots auxins tend to ________ cell elongation,in stems they promote cell elongation.

Correct AnswerverifiedShow Answer

Which one of the following is considered to be an important plant hormone that helps plants cope with environmental stresses?

Correct AnswerverifiedShow Answer

Short-day plants are those that flower only when the night period of a plant is:

Correct AnswerverifiedShow Answer

One application of auxins is its use in the production of:

Correct AnswerverifiedShow Answer

Correct Answer
verified

You isolate a plant that expresses a phytochrome mutant that is always in the P_fr form.You expect these plants will germinate:

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

Correct Answer
verified