Question 1

If you were given a bumpy fruit that clearly had one set of sepals around it and the bumps in which were the result of individual carpels having fused back to themselves,what kind of fruit would you have?

Accepted Answer

Aggregate fruits result from single flowers in which the carpels do not fuse into one unit.Please see section 22.2 for more information.

Question 2

You plant a seed in a pot containing soil,and then add water and place the pot under a light.After the seedling emerged,complete with two green leaves,the carbon dioxide levels decreased in the closed chamber.The developing seedling was using which of the following as a source of energy during this time?

Accepted Answer

Once seedlings grow large enough,they get their energy,not from the endosperm,but from the sun.Please see section 22.3 for more information.

Question 3

In plants,molecules that perceive the quality and quantity of light are

Accepted Answer

Photoreceptors help plants respond appropriately to environmental seasons.Please see section 22.5 for more information.

Question 4

A directional response to touch exhibited by plants is called

Accepted Answer

Tropisms are growth responses to external signals.Please see section 22.6 for more information.

Question 5

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is

Accepted Answer

Most phenomena promoted by ethylene involve aging or ripening.Please see section 22.4 for more information.

Question 6

You plant a seed in a pot containing soil,and then add water and place the pot under a light.After the seedling emerged,complete with two green leaves,the carbon dioxide levels decreased in the closed chamber.This indicated that _________ was occurring.

Accepted Answer

When seedlings become self-supportive for carbohydrates,they become net absorbers of carbon dioxide.Please see section 22.3 for more information.

Question 7

The main pollinators of flowers that are easy to locate at night are

Accepted Answer

Bats and moths are generally nocturnal,and the flowers which they pollinate are usually white to reflect the moon effectively.Please see section 22.2 for more information.

Question 8

Where is the energy stored in a fertilized angiosperm?

Accepted Answer

Endosperm is a triploid nutritive tissue only found in the seeds of flowering plants.Please see section 22.2 for more information.

Question 9

You are given a sample of an ingredient,made from seeds,used for cooking.The sample,when tested,proves to have three copies of each chromosome per cells.You have been given

Accepted Answer

Endosperm is nutritive;it does not form part of a plant.Please see section 22.2 for more information.

Question 10

If you examined a pea pod carefully,you would see that it was the result of one carpel.That would make it what kind of fruit?

Accepted Answer

Simple fruits contain carpels,and only carpel tissue,from one flower per fruit.Please see section 22.2 for more information.

Question 11

The main pollinators of red flowers are

Accepted Answer

Birds see well in the red part of the spectrum,unlike insects,so red flowers are generally target birds as their pollinators.Please see section 22.2 for more information.

Question 12

If asked to extract DNA from the megaspores of an apple flower,what part would you select?

Accepted Answer

Megaspores are the female gametophytes of flowering plants.Please see section 22.2 for more information.

Question 13

A(n)______ is a chemical synthesized in small quantities in one part of an organism and transported to another,where a target cell is affected.

Accepted Answer

Hormones are made in one place and have effects in another,whether plants or animals are being discussed.Please see section 22.4 for more information.

Question 14

You plant a seed in a pot containing soil,and then add water and place the pot under a light.In the first week,before the seedling even emerged from the soil,carbon dioxide levels increased in the closed chamber.The developing plant was using which of the following as a source of energy during this first week?

Accepted Answer

Carbohydrates stored in the endosperm are used by the seedling until it can do enough photosynthesis to be self-supporting.Please see section 22.3 for more information.

Question 15

If you add a plant hormone to a culture of plant cells,and cell division increases,which hormone did you add?

Accepted Answer

The name "cytokinin" refers to cell division,and animals have a functionally-related group of hormones called "cytokines." Please see section 22.4 for more information.

Question 16

The resumption of growth and development after a period of seed dormancy is

Accepted Answer

Germination always involves the uptake of large amounts of water into the dry seed.Please see section 22.3 for more information.

Question 17

Pollination is the transfer of pollen from a(n)_______________ to a receptive ________________.

Accepted Answer

Pollination can take place within one flower or between flowers on widely separated plants.Please see section 22.2 for more information.

Question 18

The reason why one bad apple leads to a bushel of apples,in which the bad one is found,spoiling,is that the bad apple produces lots of

Accepted Answer

Ethylene leads to ripening,and over-ripening makes fruit susceptible to microbial attack.Please see section 22.4 for more information.

Question 19

The main pollinators of flowers that have markings visible only under ultraviolet light are

Accepted Answer

Insects,including bees,can see in the UV,and so many flowers pollinated by them have markings,called nectar guides,which can be seen under UV light.Please see section 22.2 for more information.

Question 20

A seed's response to gravity is called

Accepted Answer

Tropisms are grow repsonses to some external stimulus.Please see section 22.6 for more information.

Quiz 22: Reproduction and Development of Flowering Plants

If you were given a bumpy fruit that clearly had one set of sepals around it and the bumps in which were the result of individual carpels having fused back to themselves,what kind of fruit would you have?

In plants,molecules that perceive the quality and quantity of light are

A directional response to touch exhibited by plants is called

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is

You plant a seed in a pot containing soil,and then add water and place the pot under a light.After the seedling emerged,complete with two green leaves,the carbon dioxide levels decreased in the closed chamber.This indicated that _________ was occurring.

The main pollinators of flowers that are easy to locate at night are

Where is the energy stored in a fertilized angiosperm?

You are given a sample of an ingredient,made from seeds,used for cooking.The sample,when tested,proves to have three copies of each chromosome per cells.You have been given

If you examined a pea pod carefully,you would see that it was the result of one carpel.That would make it what kind of fruit?

The main pollinators of red flowers are

If asked to extract DNA from the megaspores of an apple flower,what part would you select?

A(n) ______ is a chemical synthesized in small quantities in one part of an organism and transported to another,where a target cell is affected.

If you add a plant hormone to a culture of plant cells,and cell division increases,which hormone did you add?

The resumption of growth and development after a period of seed dormancy is

Pollination is the transfer of pollen from a(n) _ to a receptive __.

The reason why one bad apple leads to a bushel of apples,in which the bad one is found,spoiling,is that the bad apple produces lots of

The main pollinators of flowers that have markings visible only under ultraviolet light are

A seed's response to gravity is called

Quiz 22: Reproduction and Development of Flowering Plants

If you were given a bumpy fruit that clearly had one set of sepals around it and the bumps in which were the result of individual carpels having fused back to themselves,what kind of fruit would you have?

In plants,molecules that perceive the quality and quantity of light are

A directional response to touch exhibited by plants is called

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is

You plant a seed in a pot containing soil,and then add water and place the pot under a light.After the seedling emerged,complete with two green leaves,the carbon dioxide levels decreased in the closed chamber.This indicated that _________ was occurring.

The main pollinators of flowers that are easy to locate at night are

Where is the energy stored in a fertilized angiosperm?

You are given a sample of an ingredient,made from seeds,used for cooking.The sample,when tested,proves to have three copies of each chromosome per cells.You have been given

If you examined a pea pod carefully,you would see that it was the result of one carpel.That would make it what kind of fruit?

The main pollinators of red flowers are

If asked to extract DNA from the megaspores of an apple flower,what part would you select?

A(n) ______ is a chemical synthesized in small quantities in one part of an organism and transported to another,where a target cell is affected.

If you add a plant hormone to a culture of plant cells,and cell division increases,which hormone did you add?

The resumption of growth and development after a period of seed dormancy is

Pollination is the transfer of pollen from a(n) _______________ to a receptive ________________.

The reason why one bad apple leads to a bushel of apples,in which the bad one is found,spoiling,is that the bad apple produces lots of

The main pollinators of flowers that have markings visible only under ultraviolet light are

A seed's response to gravity is called

Pollination is the transfer of pollen from a(n) _ to a receptive __.