Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Excretion > Flashcards

Excretion Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

What is excretion?

A

Getting rid of waste products of metabolism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Homeostasis

A

Is the internal environment in an organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Ectotherms

A

Animals that obtain heat from external sources

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Endotherms

A

Generate heat from their own bodies reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Skin is composed of what?

A

Epidermis and dermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is epidermis?

A

Makes new cells and contains melanin.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is dermis ?

A

Contains a strong protein called collagen.

Has many blood vessels, sweat glands, hairs, sebaceous glands and nerve receptors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Functions of skin:

Protection

A

Epidermis protects against damage, water loss & entry of pathogens.
Melanin protects against ultraviolet radiation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Functions of skin:

Vitamin production

A

Vitamin D is made

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Functions of skin:

Food storage

A

Fat stores energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Functions of skin:

Sense organ

A

The skin senses touch, pain and tempature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Functions of skin:

Excretion

A

Sweat removes water and salts from the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Funtions of skin:

Cold conditions

A

Hairs stand up to keep skin warm.
Blood vessels become narrow to retain heat.
Shivering.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Functions if skin:

Warm conditions

A

Sweating cools the body by evaporation.

Blood vessels widen to lose heat.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the main excretory organs?

A

Lungs ( water & carbon dioxide )
Skin ( water & sats )
Kidneys ( water, salt & urea )

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the urinary system?

A

Consits of two kidneys, the bladder & urethra

17
Q

Where is urine stored ?

A

In the bladder

18
Q

Where is urine excreted?

A

Through the urethra

19
Q

Functions of kidneys

A

Excretes water, salts and urea.

Osmoregulation: controls the water content and the salt concentration of the blood.

20
Q

Where are the nephrons located?

A

The cortex and medulla

21
Q

What is the glomerular flitrate?

A

A dilute solution of waste and useful molecules

22
Q

Name a hormone?

A

Anti-diuretic hormone ( ADH )

23
Q

Where is ADH released?

A

The pituitary gland

24
Q

What does ADH control?

A

The volume of urine

25
Q

When is ADH realeased?

A

When plasma has too little water or too much salt

26
Q

When is ADH not released?

A

When we drink a lot of water or consume a low salt diet

Biology (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions