What is the response hormone in plants?
Auxin
What structure allows plants to respond to light?
Phototropism
What plant tissue carries water UP from the roots
Xylem
If a person is running and sweating, what type of feedback is occurring and why?
Negative feedback because our body is responding right away to regulate us back to homeostasis.
What is the phloem responsible for?
Bringing the glucose from the leaves down to the roots for nutrients.
Compare gravitropism and thigmotropism.
Gravitropism is a response to gravity and thigmotropism is a response to touch.
A person touches a hot pan and quickly pulls their hand away.
Describe the pathway of the response and which systems are involved.
The nervous system detects and sends the signals, the muscular system produces movement, and the skeletal system allows the arm to move. This is a reflex action that helps protect the body and maintain homeostasis
What gas do plants release during photosynthesis?
Oxygen
Compare positive and negative feedback using one example of each in the human body.
Negative feedback occurs when the body detects a change and works to reverse it in order to return to normal. For example, when body temperature rises, the body begins to sweat. Sweating cools the body down, and once normal temperature is restored, sweating stops. The response reduces the original change.
Positive feedback, on the other hand, increases or amplifies the original change until a specific event is completed. For example, during childbirth, contractions cause the release of oxytocin, which makes contractions stronger. The stronger contractions release even more oxytocin. This cycle continues until the baby is delivered.