Brainscape's Knowledge GenomeTM

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


See full index

Biology > B4 > Flashcards

B4 Flashcards

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

What are the parts of the blood

A
  • Plasma
  • red blood cells
  • white blood cells
  • platelets
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What colour is the blood plasma

A

It a thick yellow liquid

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

What does the blood plasma do

A

Transports all your blood cells and some other substances around the body

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

What does the plasma transport

A
  • Urea is formed in your liver and is moved into the kidney through it
  • Small soluble products of digestion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What do the red blood cells do

A

Red blood cells pick up oxygen from the lungs and carry it to the cells that it is needed from.

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

What are the adaptation of the red blood cell

A
  • they are biconcave to increase surface area
  • they have a red pigment called haemoglobin that binds to oxygen
  • they have no nucleus to allow more space for haemoglobin
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the function of the white blood cell

A

They help protect the body from harmful pathogens

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

What are the two white blood cells called

A

Lymphocytes and Phagocytes

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

What does the lymphocytes do

A

They dorm antibodies against microorganisms

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

What does the phagocytes do

A

Phagocytes engulfs and digests invading bacterias and viruses

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

What are platelets

A

Small fragments of cells

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

What do platelets do

A

They help the blood clot at the site of a wound

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

What is blood clotting

A

Blood clotting is the series of enzyme controlled reactions that result in converting fibrinogen into fibrin

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

What is the artery and what does it do

A

The arteries carry blood away from your heart to your organs. The blood is bright red as it is oxygenated. Arteries have thick walls containing muscles and elastic fibres.

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

What is the vein and what does it do

A

The vein carries blood away from the organs an to your heart. The blood is deoxygenated and therefore a deep purple-red colour. They have thin walls and have valves to prevent back flow of blood.

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

What are the capillaries and what does it do

A

The capillaries form a huge network that link veins and arteries they are narrow and have thin walls( one cell thick) which letts stuff diffuse out easily

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What do mammals all have in common

A

Double circulatory system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are is the functions the two transports systems in the double circulatory system

A
  • one transport system carries blood from your heart to your lungs and back again, this allows the blood to become oxygenated
  • the other transport system carries the blood from the heart and then around the body
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the top chambers called in a heart

A

Atria

20
Q

Where does the blood come from too the right atrium

A

Vena cava and is deoxygenated

21
Q

Where does the blood come from too the left atrium

A

Pulmonary vein and is oxygenated blood

22
Q

Where does the atrium push the blood too

A

The ventricles

23
Q

What stops back flow of blood

A

Valves

24
Q

Where and what through does the right ventricle pump

A

The right ventrial pumps deoxygenated blood through the pulmonary artery to the lungs

25
Q

Where and what through does the left ventricle pump

A

The lungs ventrial pumps oxygenated blood through the aorta the rest of the body

26
Q

Why is the wall of the left ventricle thicker than right ventricle

A

As the left ventricle has too pump blood too the whole body while the right ventricle only has to go the lungs

27
Q

What happens in coronary heart disease

A

The coronary arteries(which supply blood to the heart) become too narrow

28
Q

What is a common cause of coronary heart disease

A

The buildup of fatty material on the lining of the vessel

29
Q

What are the consequences of coronary heart disease

A

When the blood flow through coronary arteries is reduced the supply of oxygen is also reduced causing pain, heart attacks, and even death

30
Q

What is a common solution too coronary heart disease

A

Stents

31
Q

What is a stent

A

As stent is a metal mesh that props the artery open, a balloon is inflated inside it make it expand

32
Q

What do stents release

A

Drugs to prevent the blood clotting

33
Q

What is a bypass surgery

A

This is used when stents cannot be used as the blockage is too severe. Other bits of arteries and veins are used to create a alternative route for the blood too pass

34
Q

What are statins

A

These are drugs that reduce blood cholesterol levels which slows sown the rate of which fatty material is deposited

35
Q

What is a leaky valve

A

Heart valves have to withstand a lot of pressure, over time they may start to leak or become stiff and not open fully.

36
Q

What are the solutions for a leaky valve

A

Doctors can operate and replace faulty valves, these can last 12-15 years but would mean that they have to take medication

37
Q

What is the resting rhythm of a healthy heart

A

70 beats per minute

38
Q

What controls the hearts beat

A

It is controlled by a group of cell in the right atrium

39
Q

What happens if the the natural pacemaker doesn’t work

A
  • If the heart beats too slowly the person would not get enough oxygen
  • if the heart beats too fast it cannot pump blood properly
40
Q

What can be used too solve the problems with a rhythm of the heart

A

An artificial pace maker, you will need regular checkups with these

41
Q

What is the function of epidermal tissues

A

It covers the the surface and protects them, these cells often secrete a waxy substance to become waterproofd

42
Q

What is the function of palisade mesophyll tissues

A

It contains lots of chloroplasts for photsythesis

43
Q

What is the function of spongy mesophyll tissues

A

It contains some chloroplasts but mainly has large airs spaces and a large surface area to make diffusion easier

44
Q

What is the function of xylem tissues

A

The xylem carry water and dissolved mineral ions

45
Q

What is the function of the phloem

A

The phloem carries dissolved food made by photosythesis from the leaves around the plants

46
Q

What is the movement of dissolved sugars called

A

Translocation

47
Q

Need more

A

B4.8 + B4.9

Biology (9 decks)

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