Unit 1: Intro

Question 1

What is homeostasis

Answer 1

maintain constant internal environment in response to stress

Question 2

What is stress

Answer 2

Any condition that disrupts homeostasis

Question 3

Exemple of cellular or physiological process homeostasis keeps at a “set-point”

Answer 3

Temperature
pH 
[ion]
water 
plasma volume
blood pressure

Question 4

4 steps of homeostasis to return to normal

Answer 4

1) Stimulus causes change/stress
2) sensor (stress detected)
3) control (response initiated)
4) effector (cells respond)

Question 5

What is the hierarchy of organization

Answer 5

Body made of 
System made of 
Organs made of 
Tissue made of 
Cell

Question 6

Role of anabolism

Answer 6

Use energy and macromolecules to build stuff

Question 7

Role of catabolism

Answer 7

Break down food to provide macromolecules and energy

Question 8

Name 3 types of stressor

Answer 8

environmental
physical
emotional

Question 9

What are the organs include in the nervous system?

Answer 9

Brain, spinal cord, nerve