Brainscape's Knowledge GenomeTM

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


See full index

Biology > CIRCULATION OF MAMMALS > Flashcards

CIRCULATION OF MAMMALS Flashcards

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

Why do large and multicellular animals need a circulatory system?

A

To transport substances around the body

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

How is the blood pumped around the body?

A

Round a closed circuit made up the heart and the blood vessels

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

What does the blood do?Most simply

A

It travels around the body and collects material fro some places and unloads them in others

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

What is 1 thing the blood transports?

A

O2 from the lungs to the cells of the body for respiration

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

What is 2nd thing the blood transports?

A

CO2 from the cells of the body to the lungs

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

What is 3rd thing the blood transports?

A

Nutrients from the gut to all of the the cells of the body

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

What is 4th thing the blood transports?

A

Urea from the LIVER–) TO THE KIDNEYS

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

What are a few other things the blood transports

A

Hormones,antibodies and distributing heat round the body

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

Do single celled organisms have a circulatory system?

A

No, they do not need one

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

Why don’t single celled organisms not have a circulatory system?

A

One celled organisms get O2 through the surface membranes of their cells, the rest of the cell then uses the 02

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

What is supply rate?

A

The AREA of the cells SURFACE determines how much 02 the organism CAN GET

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

What is demand rate?

A

The VOLUME of the cell determines how much O2 the organism uses

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

How to you express the ratio of supply to demand?

A

SA/V

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

Which organism has a bigger SA;V ratio an amoeba or a human baby?WHY?

A

An amoeba, the smaller the organism the bigger the SA;V

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

Why do single celled organism have such a large SA;V?is it helpful?

A

Their cell surface membrane has a LARGE ENOUGH AREA to supply all the 02 their volume demands

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

What is the gas exchange organ in a fish?

A

the gills

17
Q

Why can’t large animals rely on diffusion TO GET ALL THE OXYGEN THEY NEED?

A

Not enough surface to supply all the volume

18
Q

What are the 2 types of circulation in animals?

A

Single and double circulatory system

19
Q

What is a single circulatory system?

A

The blood is pumped from the heart—–) gas exchange organ ——)directly to the rest of the body

20
Q

What is a double circulatory system?

A

The blood is pumped from the heart–)lungs —) back into the heart —) then to the rest of the body

21
Q

What is different from a single to a double circulatory system?

A

Blood passes through the heart once

= in a COMPLETE CIRCUIT of the body

22
Q

What is different from a double to a single circulatory system?

A

The heart passes through the heart TWICE

= in one complete circuit of the body

23
Q

What are the two parts of the double circulatory system?

A

Pulmonary and systemic circulation

24
Q

What is pulmonary circulation?

A

When blood is pumped through to the lungs where its oxygenated

25
Q

What is systemic circulation?

A

When blood is pumped to all the other parts of the body where the blood unloads it’s oxygen

26
Q

Why is double circulation more efficient?

A

Blood is pumped through the heart twice, so higher pressures can be maintained, with high pressures blood can reach the oragans quicker

27
Q

Why is the single circulation system less effective?

A

Blood looses pressure so the blood reaches the organs at a much slower pace

28
Q

What the human circulatory system comprised of?

A

The heart, blood vessels, blood

29
Q

What is the heart?

A

A pump

30
Q

What is the blood?

A

A transport medium

31
Q

What are blood vessels?

A

They carry blood around the body

32
Q

Name the different types of blood vessels

A

Capillaries, arteries, veins (CAV)

Biology (45 decks)

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