Biology Homestasis

Question 1

Are endothermic organisms warm-blooded or cold-blooded?

Answer 1

Warm-blooded.

Question 2

What are some of the physical characteristics of endotherms?

Answer 2

Feathers, fur, and clothing.

Question 3

What are ectothermic organisms?

Answer 3

Cold-blooded organisms.

Question 4

Do ectotherms process more energy or endotherms?

Answer 4

Endotherms because they convert their own energy.

Question 5

Do ectotherms or endotherms need to eat less?

Answer 5

Ectotherms.

Question 6

What does WSICTU?

Answer 6

Water.
Sugar.
Ions.
Carbon Dioxide and Ceullar Respiration.
Temperature.
Urea.

Question 7

What does a negative feedback system do?

Answer 7

Bring levels back to normal or decrease them entirely.
Example: Blood pressure decreasing to normal.

Question 8

What does a positive feedback system do?

Answer 8

Example: Childbirth
Moves the reaction or result in a certain direction.

Question 9

What do feedback mechanisms in general do?

Answer 9

Maintain internal conditions despite a changing environment.

Question 10

What is the hypothalamus typically known as when it comes to feedback systems? (HINT: Two-part answer)

Answer 10

The Control Center

Question 11

What are some homeostasis disruptions? (HINT: The three D’s)

Answer 11

-Death
-Disorder
-Disease

Question 12

What do ectotherms rely on to maintain their temperatures?

Answer 12

Their environments.

Question 13

What is the stimulus?

Answer 13

A thing or event that creates a reaction in either organs or tissues.

Question 14

What is a receptor?

Answer 14

Type of sensor that monitors the environment and its changes.

Question 15

What is the control center?

Answer 15

Determines the level or set point that a variable must be maintained to analyze information by the receptor.

Question 16

What is an effector?

Answer 16

Provides a pathway for the response to get back to the stimulus to create either a positive feedback system or negative feedback system.

Question 17

What does the hypothalamus do for homeostasis?

Answer 17

-Food intake
-Heart rate
-Hormone levels
-Body temperature

Question 18

How do endotherms stay warm?

Answer 18

-Vasoconstriction (Muscles constrict)
-Shivering

Question 19

How do endotherms stay cool?

Answer 19

-Vasodilation (Muscles dilate)
-Sweating

Question 20

Why do large animals need to eat so much to stay warm?

Answer 20

They have more muscle mass to keep warm.

Question 21

What are the advantages of being an endotherm?

Answer 21

Endotherms can survive different environments.

Question 22

True or False: Humans are endotherm and homeothermic.

Answer 22

TRUE

Question 23

Which animals are endothermic?

Answer 23

Mammals, birds, and a few other exceptions.

Question 24

TRUE OR FALSE: Most energy or calories go into regulating body temperature.

Answer 24

TRUE

Question 25

TRUE OR FALSE: ATP is the body's battery power.

Answer 25

TRUE

Question 26

TRUE OR FALSE: Maintaining a regular body temperature is relatively cheap.

Answer 26

FALSE

Question 27

TRUE OR FALSE: Being endothermic is a mutation to becoming warm-blooded.

Answer 27

TRUE

Question 28

What did the secondary palate do?

Answer 28

Eating while breathing allowed for more energy to be consumed.

Question 29

What was the Great Dying?

Answer 29

Temperatures rising from volcanoes that had higher metabolisms.

Question 30

Were dinosaurs more like endotherms or ectotherms?

Answer 30

Endotherms.

Question 31

TRUE OR FALSE: Ectotherms have a higher metabolism.

Answer 31

FALSE

Question 32

TRUE OR FALSE: Endotherms tend to be better parents.

Answer 32

TRUE - They have more energy to put into nurturing their young.