Bio Intro

Question 1

What does structure determine?

Answer 1

The function

Question 2

How are our bodies organized? (Hierarchy)

Answer 2

Atoms, molecules, cells, tissues, organs, organ systems, and organisms

Question 3

What parts of the hierarchy of the body are nonliving?

Answer 3

Atoms and molecules

Question 4

What parts of the hierarchy of the body are living?

Answer 4

Cells, tissues, organs, organ systems, and the organism

Question 5

What is the cell?

Answer 5

The basic unit of life

Question 6

What are emergent properties?

Answer 6

When every new level of organization has characteristics that were not present in the prior level

Question 7

What is homeostasis?

Answer 7

The ability to maintain a relatively constant internal environment in the body despite outside changes

Question 8

What 2 systems are key to homeostasis?

Answer 8

The nervous and endocrine systems

Question 9

What is a stimulus?

Answer 9

A sensor that monitors a variable

Question 10

What does a control center do?

Answer 10

It knows a set-point, interprets input, makes a decision, and sends a command

Question 11

What is a response?

Answer 11

An effector that changes a variable

Question 12

What is a negative feedback loop?

Answer 12

A response that counter-acts a stimulus

Question 13

What is a positive feedback loop?

Answer 13

A response that reinforces a stimulus

Question 14

What are 3 general nervous system functions?

Answer 14

Control center for homeostasis, direct movement of the body, and communication between body parts

Question 15

What is the main function of the endocrine system?

Answer 15

Regulating homeostasis by producing hormones

Question 16

What are 4 main functions of the skeletal system?

Answer 16

Framework for the body, move the body (with muscles), protect organs, and store minerals

Question 17

What is the function of skeletal muscle in the muscular system?

Answer 17

Regulate body temperature, and move bones

Question 18

What is the function of cardiac muscle in the muscular system?

Answer 18

Move the heart

Question 19

What is the function of smooth muscle in the muscular system?

Answer 19

Moves hollow organs

Question 20

What are 2 main functions of the digestive system?

Answer 20

Break down food and absorb nutrients

Question 21

What are 2 main functions of the respiratory system?

Answer 21

Allows gas exchange with the environment, and helps regulate blood pH

Question 22

What does the cardiovascular system transport, and where?

Answer 22

Oxygen and nutrients to the tissues of the body, and carbon dioxide and nitrogen waste away from the tissues

Question 23

What does the cardiovascular system help regulate?

Answer 23

Fluid balance in tissues, and body temperature

Question 24

What is the main function of the urinary system?

Answer 24

Filter blood, removing nitrogen-containing wastes

Question 25

What does the urinary system help regulate?

Answer 25

Blood pH and blood volume

Question 26

What is the main function of the immune system?

Answer 26

Protect against pathogens

Question 27

What are 3 main functions of the lymphatic system?

Answer 27

Protect against pathogens, maintain fluid balance, and absorb & transport fats

Question 28

What are 3 main functions of the integumentary system?

Answer 28

Protect the body from the outside world, eliminate metabolic waste, and regulate body temperature

Question 29

What is the function of the reproductive system, and how many types are there?

Answer 29

2 types of reproductive systems, which both function to produce offspring