Concept Three Vocabulary

Question 1

A fungus which grows in association with the roots of a plant in a symbiotic or mildly pathogenic relationship.

Answer 1

mycorrhizae

Question 2

A tissue composed of a network of interconnected gas conducting intercellular space which provides plant roots with oxygen under hypoxic conditions.

Answer 2

aerenchyma

Question 3

Root extensions that grow out of the water and into the air to allow oxygen to diffuse through them to be transported to the roots that are underground.

Answer 3

pneumatophores

Question 4

Any plant with thick fleshy tissues adapted to water storage.

Answer 4

succulence

Question 5

Growth in reponse to direction of sunlight.

Answer 5

phototropism

Question 6

Growth in response to the direction of gravity.

Answer 6

gravitropism

Question 7

Growth in response to touch.

Answer 7

thigmotropism