Homeostasis

Question 1

[Homeostatis]
What is homeostatis?

Answer 1

Maintaining a stable internal environment despite changing conditions

Question 2

[Homeostatis]
Why does the body need to maintain optimal conditions?

Answer 2

For optimal enzyme and cell function

Question 3

[Homeostatis]
Which of these are considered internal conditions?
(A) Blood pH
(B) ROOM temperature
(C) Blood glucose concentration

Answer 3

A. , C.

Question 4

[Homeostatis]
True or false? Homeostatis ensure internal conditions stay exactly constant they do not fluctuate at all.

Answer 4

False.

Question 5

[Homeostatis]
Examples of external conditions?

Answer 5

The amount of fluid you drink.
Room Tempurture

Question 6

[Homeostatis]
Fill in the missing blanks
____________-> coordination center_________-> effector

Answer 6

** receptor, effector**

Question 7

[Homeostatis]
What is the role of the receptor?

Answer 7

Detects changes in the internal enviroment or external

Question 8

[Homeostatsis]
What is the role of the receptor?

Answer 8

Detect changes in the external or internal enviroment

Question 9

[Homeostasis]
What is the role of a coordination centre?

Answer 9

Interperts and organises a response

Question 10

[Homeostatis]
Where are the coordination centres located in the body?

Answer 10

spinal cord, brain.

Question 11

[Homeostasis]
Name two types of effectors and state what they do

Answer 11

muscles and glands. Muscles contract while glands release hormones

Question 12

[Homeostatis]
Is the nervous system or the endocrine system faster reacting

Answer 12

Nervous system as it relies on electrical impulses that travel really quickly

Question 13

[Homeostasis]
Which system acts more generally across the body nervous system or endocrine?

Answer 13

Endocrine system as it involves releasing hormones into the blood stream which means they spread throughout the entire body

Question 14

[Homeostasis]
What system does homeostatis rely on?

Answer 14

Homeostasis relies on a system of negative feedback meaning whenever the levels of something get too high they’re brought back down and whenever the levels of something get too low they’re brought back up.

Question 15

[Homeostasis]
How does negative feed back work?

Answer 15

Any change in a system causes an action to reverses the change

Question 16

[Homeostasis]
What are coordination centres?

Answer 16

Coordination centres are regions that can coordinate responses to stimuli

Question 17

If our body temperature gets too high, negative feedback will cause our temperature to:

Answer 17

Decrease back down