ORTCITIAEE: Survival and response- Taxis and Kinesis

Question 1

What is taxis and kinesis?

Answer 1

Simple responses that help a mobile organism to find and stay in a favourable environment.

Question 2

Taxis is a _____ response to a stimulus.

Answer 2

Directional

Question 3

What is taxis?

Answer 3

A directional response to a stimulus.

Question 4

In taxis an organism will either move its body _____ or _____ from a stimulus.

Answer 4

Towards or away

Question 5

Kinesis is a ______ response to a stimulus.

Answer 5

Non-directional

Question 6

What is kinesis?

Answer 6

A non-directional response to a stimulus.

Question 7

What are the two factors that change in kinesis ?

Answer 7

-Changes speed of movement
- Changes rate of turning

Question 8

What will a kinesis organism do in an unfavourable environment?

Answer 8

• Increase speed of movement
• Decrease rate of turning

Question 9

What will a kinesis organism do in a favourable environment?

Answer 9

• Decrease speed of movement
• Increase rate of turning

Question 10

Taxis and kinesis are a _____ organism response.

Answer 10

whole

The whole organism is moving, not just a part of it (not like tropism where only some cells elongate).