Week 9 - Plant Sensing And Movement (Exam 3)

Question 1

How do plants process information and respond to their environment?

Answer 1

Plants use sensory systems to respond to environmental stimuli like light, gravity, and touch.

Question 2

What is phototropism, and how do plants respond to light?

Answer 2

Phototropism is the growth of plants in response to light, allowing them to maximize light absorption for photosynthesis

Question 3

How do plants respond to gravity (gravitropism)?

Answer 3

Gravitropism is the growth of plant roots downward in response to physical touch, in response to gravity and shoots upward.

Question 4

How do sensory neurons transmit information to the brain?

Answer 4

Sensory neurons carry signals from sensory receptors to the brain, where the information is processed.

Question 5

What is mechanoreception and how does it function in animals?

Answer 5

Mechanoreception is the detection of mechanical changes like touch and sound, using structures like the lateral line in fish or hearing in other animals.

Question 6

How does photoreception work?

Answer 6

Photoreception involves cells in the eye detecting light, enabling vision.

Question 7

What is thigmotropism, and how do plants respond to touch or wind?

Answer 7

Thigmotropism is the movement or growth in response to physical touch, as seen in climbing plants that wrap around structures.