Brainscape's Knowledge GenomeTM

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


See full index

Biology > B4 - Organising animals and plants > Flashcards

B4 - Organising animals and plants Flashcards

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

What is the blood made of

A

Plasma
Red Blood Cells
White Blood Cells
Platelet’s

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

What is the function of Plasma

A

It transports all your:
Blood cells
Waste CO2 produced by cells, to the lungs
Urea formed in the liver, to the kidneys
The small soluble product of digestion, pass into plasma

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

What is the function of Red Blood Cells

A

To pick up oxygen from your lungs and carry it to the cells that need it

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

What is the function of White Blood Cells

A

They form part of the body’s defence system against harmful microorganisms
They make Lymphocytes which form antibodies
ones that make antitoxins
Phagocytes which engulf and digest the harmful microorganisms

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

What is the function of Platelets

A

They help the blood clot at the site of a wound and stop the bacteria entering the body

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

What are the 3 types of blood vessels

A

Vein
Artery
Capillary

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

Which direction does the blood flow in a Artery

A

Out of the heart

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

Which direction does the blood flow in a Vein

A

Into the heart

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

Which direction does the blood flow in a Capillary

A

Around the body

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

Key structures of a Capillary

A

Narrow lumen
Walls a cell thick
Lets substances to diffuse easily

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

Key structures of a Vein

A

Relatively thin walls
Large Lumen
Often have valves to stop backflow

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

Key structures of a Artery

A

Thick walls with lots of muscles and elastic fibres in it

Small lumen

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

What are stents used for

A

They are used to keep narrowed or blocked arteries open

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

What are statins used for

A

They reduce the cholesterol levels in the blood, reducing the risk of coronary heart disease

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

What is the function of heart valves

A

They keep the blood flowing in the right direction in the heart

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

What can replace damaged heart valves

A

Biological or Mechanical valves

17
Q

What controls the resting heart rate

A

A group of cells in the right atrium that form a natural pacemaker

18
Q

What are artificial pacemakers

A

They are elctrical devices that correct the irregularties in the heart rythmn

19
Q

What are artifical hearts

A

They are machines which pump a patients blood around their body while they are waiting for a transplant

20
Q

What is the purpose of the diaphragm

A

It contracts and relaxes to increase and decrease the volume in the lungs while breathing

21
Q

What is the purpose of the alveoli

A

It diffuses oxygen into the blood and diffuse CO2 out

22
Q

What is a lung

A

It is an organ where gas exchange happens

23
Q

What is the purpose of the trachea

A

Carries air to and from the lungs

24
Q

What is the purpose of the bronchus

A

Carries air into and out the two sides of the lungs

25
Q

What is the purpose of the bronchioles

A

They carry air to the alveoli’s

26
Q

What is the function of the waxy cuticle layer

A

To prevent evaporation and protect the leaf

27
Q

What is the function of the Upper epidermis

A

To allow as much light as posssible to get through it

Lacks organelles

28
Q

What is the function of the Palisade Mesophyll layer

A

To carry out lots of photosythesis

Lots of chloroplast

29
Q

What is the function of the stoma

A

To allow air in for gas exchange

30
Q

What is the function for the spongy mesophyll layer

A

Gas exchange

Lots of air spaces between the cells

31
Q

What is the function of the guard cells

A

Opening and closing the stoma

32
Q

What does the Phloem do

A

It transports sugar up and down the stem
The process is called translocation
It is made of living tissue

33
Q

What does the Xylem do

A

It transports water up the stem (one direction)
Process called transpiration
Made up of dead cells

34
Q

Why are Xylem’s made of dead cells

A

So that nothing gets in the way

35
Q

What is Transpiration

A

The movement of water up the stem and then evaportaed out the stomata
Evaporation of some of the water causes more water to be pulled through the xylem

36
Q

What causes an increase in the rate of transpiration in a plant

A

Windy weather
Higher temperature
When there is lots of sun

Biology (17 decks)

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