Exam 24: Control of Growth Responses in Plants

Movements that occur over a regular 24-hour cycle are referred to as

Which of the following would overturn what we know about phytochrome?

Which comes after a plant's first line of defense?

The criterion for designating plants as short-day or long-day is the absolute number of hours of light required to affect flowering.

-This figure shows the signal transduction pathway in plants.What does "a" represent?

In root cap cells,there are ________________ which are sensors that detect which direction is down.

A plant physiologist is studying a plant's response to gravity,a study of what?

Which of the following is an effect of a plant hormone other than ethylene?

Which of the following would cause a leaf cell to become turgid?

A plant physiologist is studying a hormone which promotes cell division and initiates growth,which is called what?

When a leaf loses its natural color,it would most likely be undergoing an aging process called

Research on the closing of the stomata when a plant is under water stress would be a study of which plant hormone?

The portion of the plant which is involved in controlling turgor movements is called

Which of the following is chiefly responsible for the abscission of leaves,flowers,and fruit?

If you were studying a growth-promoting hormone that brings about internode elongation of stem cells,you would be studying what?

Only humans use plants to fight infections.

A plant physiologist is studying the plant's ability to seal off an area which is infected by a virus,bacteria,or fungus,a study of

A response which involves the production of volatile molecules that attract carnivores to eat herbivores feeding on the plant or to discourage insects from laying their eggs on leaves is referred to as

What is the correct order in the signal transduction pathway?

The dropping of leaves,fruit,and flowers is called