Question 1

An insect that twice touches a Venus fly trap hair changes a(n)________ stimulus into a(n)________ signal.

Accepted Answer

The insect touching the Venus fly trap hair is a touch stimulus, which is converted into an electrical signal by the plant.

Question 2

As a leaf or fruit ages and prepares to fall from a tree, what type of layer does it form?

Accepted Answer

The answer of As a leaf or fruit ages and...

Question 3

The only plant hormone that is a gas is cytokinin. True or False?

Accepted Answer

The only plant hormone that is a gas is ethylene. Cytokinin is a type of plant hormone, but it is not a gas.

Question 4

Cytokinins cause most of their responses in plants by stimulating cell ________.

Accepted Answer

The answer of Cytokinins cause most of their responses in...

Question 5

Plants are able to measure the length of the night using the ________ system.

Accepted Answer

The answer of Plants are able to measure the length...

Question 6

Why can flowers be brought "into bloom" out of season by changing the duration of light and darkness?

Accepted Answer

The answer of Why can flowers be brought "into bloom"...

Question 7

What kinds of hormonal changes occur as trees prepare for winter dormancy?

Accepted Answer

The answer of What kinds of hormonal changes occur as...

Question 8

Corn plants release chemicals that attract a parasitic wasp. The wasp, in turn, protects the corn plants from destruction by:

Accepted Answer

The article says that the parasitic wasp protects corn plants from destruction by caterpillars.

Question 9

Venus flytraps catch insects in order to supplement their input of:

Accepted Answer

Venus flytraps catch insects because they need to supplement their input of nitrogen, which is essential for protein synthesis.

Question 10

If a coleus plant that has become tall and spindly, what can you do to encourage it to develop lateral branches, so that it becomes bushier?

Accepted Answer

The answer of If a coleus plant that has become...

Question 11

How do auxin and cytokinin interact to affect the shape and growth of a plant?

Accepted Answer

The answer of How do auxin and cytokinin interact to...

Question 12

In the late winter, as seeds prepare to germinate, the levels of ________ in seeds should be declining as the levels of ________ are increasing.

Accepted Answer

The answer of In the late winter, as seeds prepare...

Question 13

Shoots grow up and roots grow down due to thigmotropism. True or False?

Accepted Answer

Shoots grow up due to positive phototropism (in response to light) and negative gravitropism (against gravity). Meanwhile, roots grow down due to negative phototropism and positive gravitropism. Thigmotropism refers to the directional growth of a plant in response to touch or contact with an object, such as a vine wrapping around a support or thorns growing in a certain direction to deter herbivores.

Question 14

Defend this statement: Plants are just as capable of responding to their environment as are animals.

Accepted Answer

The answer of Defend this statement: Plants are just as...

Question 15

An old gardening folk tradition uses a "tea" made by soaking the stem tips of willows in water overnight and then using the tea to water cuttings. This is supposed to encourage root formation. Does it work? Why?

Accepted Answer

The answer of An old gardening folk tradition uses a...

Question 16

People should not "torment" their Venus flytrap plant with toothpicks or other indigestible objects (to show off its ability to close its trap)because the plant uses up much of its supply of ________ every time the trap closes.

Accepted Answer

The answer of People should not "torment" their Venus flytrap...

Question 17

In seeds from northern areas, what plant hormone often needs to be removed to get them to germinate, and how can this be done?

Accepted Answer

The answer of In seeds from northern areas, what plant...

Question 18

When a peach blossom is pollinated, auxin and/or ________ stimulates the development of fruit from the ovary.

Accepted Answer

The answer of When a peach blossom is pollinated, auxin...

Question 19

Auxins are used in rooting powders to encourage the formation of well-branched roots. True or False?

Accepted Answer

Auxins are plant hormones that promote root growth and branching, making them useful in rooting powders.

Question 20

Radish plants under insect attack:

Accepted Answer

Radish plants under insect attack produce bitter chemicals and grow spines on their leaves as a defense mechanism to deter the insects from feeding on them.

Quiz 45: Plant Responses to the Environment

An insect that twice touches a Venus fly trap hair changes a(n) stimulus into a(n) signal.

As a leaf or fruit ages and prepares to fall from a tree, what type of layer does it form?

The only plant hormone that is a gas is cytokinin. True or False?

Cytokinins cause most of their responses in plants by stimulating cell ________.

Plants are able to measure the length of the night using the ________ system.

Why can flowers be brought "into bloom" out of season by changing the duration of light and darkness?

What kinds of hormonal changes occur as trees prepare for winter dormancy?

Corn plants release chemicals that attract a parasitic wasp. The wasp, in turn, protects the corn plants from destruction by:

Venus flytraps catch insects in order to supplement their input of:

If a coleus plant that has become tall and spindly, what can you do to encourage it to develop lateral branches, so that it becomes bushier?

How do auxin and cytokinin interact to affect the shape and growth of a plant?

In the late winter, as seeds prepare to germinate, the levels of in seeds should be declining as the levels of are increasing.

Shoots grow up and roots grow down due to thigmotropism. True or False?

Defend this statement: Plants are just as capable of responding to their environment as are animals.

An old gardening folk tradition uses a "tea" made by soaking the stem tips of willows in water overnight and then using the tea to water cuttings. This is supposed to encourage root formation. Does it work? Why?

People should not "torment" their Venus flytrap plant with toothpicks or other indigestible objects (to show off its ability to close its trap)because the plant uses up much of its supply of ________ every time the trap closes.

In seeds from northern areas, what plant hormone often needs to be removed to get them to germinate, and how can this be done?

When a peach blossom is pollinated, auxin and/or ________ stimulates the development of fruit from the ovary.

Auxins are used in rooting powders to encourage the formation of well-branched roots. True or False?

Radish plants under insect attack:

Quiz 45: Plant Responses to the Environment

An insect that twice touches a Venus fly trap hair changes a(n) ________ stimulus into a(n) ________ signal.

As a leaf or fruit ages and prepares to fall from a tree, what type of layer does it form?

The only plant hormone that is a gas is cytokinin. True or False?

Cytokinins cause most of their responses in plants by stimulating cell ________.

Plants are able to measure the length of the night using the ________ system.

Why can flowers be brought "into bloom" out of season by changing the duration of light and darkness?

What kinds of hormonal changes occur as trees prepare for winter dormancy?

Corn plants release chemicals that attract a parasitic wasp. The wasp, in turn, protects the corn plants from destruction by:

Venus flytraps catch insects in order to supplement their input of:

If a coleus plant that has become tall and spindly, what can you do to encourage it to develop lateral branches, so that it becomes bushier?

How do auxin and cytokinin interact to affect the shape and growth of a plant?

In the late winter, as seeds prepare to germinate, the levels of ________ in seeds should be declining as the levels of ________ are increasing.

Shoots grow up and roots grow down due to thigmotropism. True or False?

Defend this statement: Plants are just as capable of responding to their environment as are animals.

An old gardening folk tradition uses a "tea" made by soaking the stem tips of willows in water overnight and then using the tea to water cuttings. This is supposed to encourage root formation. Does it work? Why?

People should not "torment" their Venus flytrap plant with toothpicks or other indigestible objects (to show off its ability to close its trap)because the plant uses up much of its supply of ________ every time the trap closes.

In seeds from northern areas, what plant hormone often needs to be removed to get them to germinate, and how can this be done?

When a peach blossom is pollinated, auxin and/or ________ stimulates the development of fruit from the ovary.

Auxins are used in rooting powders to encourage the formation of well-branched roots. True or False?

Radish plants under insect attack:

An insect that twice touches a Venus fly trap hair changes a(n) stimulus into a(n) signal.

In the late winter, as seeds prepare to germinate, the levels of in seeds should be declining as the levels of are increasing.