Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

A Level Biology - Seneca Topic Flashcards > Topic 1 > Flashcards

Topic 1 Flashcards

1
Q

Artery Function?

A

Carry Oxygenated blood away from heart

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

Vein Function?

A

Carry Deoxygenated blood towards the Heart

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

Pulmonary Artery special function?

A
  • Only artery that carries deoxygenated blood

- Carried from heart to the lungs

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

Pulmonary Vein special function?

A
  • Only vein to carry oxygenated blood

- Carried from lungs to the heart

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

Aorta?

A

-Oxygenated blood flows from the heart to the rest of the body

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

Vena Cava?

A

-Carries deoxygenated blood into the heart

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

Coronary Artery?

A

-Blood vessels supplying blood to the heart

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

Renal Artery?

A

-Oxygenated blood flows to get to kidneys

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

Atoms in Water charges?

A
  • Oxygen atoms -> Slightly Negative Charge

- Hydrogen -> Slightly Positive Charge

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

What does Water include to be important?

A
  • Reactant in cells
  • Provides structural support
  • Keeps organisms cool - maintain temp
  • Hydrogen bonding
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Heat of Vaporisation meaning in Water?

A

Amount of energy needed to to change one gram of liquid to gas

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

Cohesive Properties meaning in Water?

A

Strong attraction between molecules due to hydrogen bonds

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

Specific Heat Capacity meaning in Water?

A

Amount of heat one gram of substance absorbs/loses to change temp by one degree celsius

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

Good Solvent meaning in Water?

A

Ions and Polar molecules can easily dissolve in water

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

Good Metabolite meaning in Water?

A

Used or formed in many reactions eg condensation and hydrolysis

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

Capillaries function

A

Very thin walls for gas exchange between blood and organs

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

Location of Capillaries and why it helps?

A
  • Very close to body cells
  • Very short diffusion distance
  • Rapid Gas exchange
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Walls of Capillaries and why it helps?

A
  • Endothelium is one cell thick

- Allows efficient gas exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Surface Area of Capillaries and why it helps?

A
  • Arterioles split into million of capillaries that form networks around body (capillary beds)
  • Create large SA
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Role of the Lymphatic System?

A

Recycles excess tissue fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Arterioles

A

Small blood vessels which branch from arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Venules

A

Small blood vessels that collect blood coming out of capillaries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Veins

A

Vessels that transport blood back to the heart, have a thin muscle wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Arteries

A

Vessels that transport blood away from the heart to the organ, have a thick muscular wall

25
How are substances carried in the capillaries
Tissue Fluid
26
What is Tissue fluid?
Combination of oxygen, water and nutrients
27
What is Pressure Filtration?
Substances that move into the tissue fluid from the capillaries
28
How does the Pressure Gradient affect Capillaries?
- High Pressure Gradient at entrance to capillary bed | - High pressure creates pressure gradient
29
Movement of Fluid in Capillaries?
-Flows down pressure gradient into the surrounding space (Pressure Filtration)
30
What occurs in Right Ventricle?
- RA Contracts -> deox. blood -> RV | - RV Contracts -> deox. blood -> Pulm Art -> Lungs
31
Function of Atrio-Ventricular Valves?
-prevents blood RV -> RA
32
Function of Semi-Lunar Valves?
-prevents blood Pulm -> RV
33
What occurs in Right Atrium?
-Deox enters via Vena Cava
34
What occurs in Left Atrium?
-Oxy blood -> LA via pulm vein
35
What occurs in Left Ventricle?
- LA contracts -> LV | - LV muscle thicker muscle to transport around body
36
Effect of Cardiac Cycle on Ventricle Pressure?
- Contraction causes massive inc in pressure - Slight inc. when ventricles relax - Slight inc. atrial contraction
37
Atria in the Cardiac Cycle?
- Contract = inc. pressure | - Relax = dec. pressure
38
Stages in Cardiac Cycle?
1) Contraction of atria 2) Blood -> Ventricles 3) Contaction of Ventricles 4) Atrio-Ven valves shut 5) Blood forced out of heart 6) Semi-Lunar valves shut 7) Relaxation of Ven. and atria
39
Atheroma
deposition of materials in the walls of the arteries
40
Effects of Atherosclerosis?
- Endothelium damaged due to lipid and WBC deposited - LDL transports cholesterol in blood - cholesterol builds up - atheroma formed - Overtime they form hard fibrous plaque
41
Narrow Lumen Consequences - Atherosclerosis
- Due to Fibrous Plaque built up (Atheroma) | - Increased Blood Pressure
42
What is Coronary Heart Disease?
-Due to lots of Atheromas
43
What is Atherosclerosis
-Blockage of an artery due to build up of fatty acids
44
What can Atherosclerosis Cause
- Angina - chest pains | - myocardial infections
45
What is an Aneurysm
-Increased blood pressure can cause elastic fibres in the artery to swell
46
What is Thrombosis
-Platelets combine to form a clot
47
3 factors which can cause CVD?
- Smoking - High Blood Pressure - Diet
48
Smoking effect on CVD?
-Carbon Monoxide reduces amount of oxygen haemoglobin can take
49
High Blood Pressure effect on CVD?
-Can cause Atheromas forming
50
Diet effect on CVD?
- High in fat = higher cholesterol levels | - contributes to formation of atheromas
51
4 types of treatment for CVD?
- Statins - Antihypertensives - Anticoagulants - Platelet inhibitors
52
Statins treatment
- Statins lower cholesterol (LDLs) | - should be taken everyday
53
Side effects of Statins
- Headaches | - Feeling sick
54
Antihypertensives treatment
- Used to treat high blood pressure | - eg beta blocker
55
Side effects of Antihypertensives
-Headaches
56
Anticoagulants treatment
- Used to lower the risk of blood clots | - Warfarin
57
Side effects of Anticoagulants
- Nose bleeds | - Severe bleeding
58
Platelets Inhibitors treatment
-Prevent platelets combining meaning less chance of clot forming
59
Side effects of Platelets inhibitors
- Excessive Bleeding | - Nausea

A Level Biology - Seneca Topic Flashcards (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions