Exam 22: Reproduction and Development of Flowering Plants

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.

Angiosperms owe their widespread distribution to their production of pollen,seeds and flowers.What is the greatest advantage to the production of flowers?

Where is the energy stored in a fertilized angiosperm?

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

Whorl one,the outermost whorl of a flower,is made up of

Coconuts are fruits containing seeds that are usually wind-dispersed.

The portion of a flower that receives the pollen is the

Gametophytes are haploid.

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

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

Clover will flower if exposed to 8 hours of dark and 16 hours of light.It will not flower if exposed to 16 hours of dark and 8 hours of light.However,if the 16 hours of dark is interrupted with a brief period of light the clover will flower.Which triggers clover to flower?

Scientists tested the hypothesis that peppers are hot

If you were working for a florist and were asked to not damage the showiest parts of the flowers while working on them,you would know that you were asked to be careful with

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?

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?

How are animals involved in the life cycle of plants?

In the late 1870s,Charles Darwin and his son Francis discovered that if the tip of the grass was covered phototropism did not occur,even though the rest of the grass was exposed to light.However,if the rest of the plant was covered and only the tip exposed to light the grass bent a few centimeters below the tip.How could light striking the tip of the grass cause bending a few centimeters from the tip?

A directional response to touch exhibited by plants is called

If a gardener cuts the apical meristem of a plant,lateral buds begin to grow,which causes a bushier shape to develop.This is because the apical meristem normally secretes auxins that do which of the following?

A seed's response to gravity is called