Topic 1 Biology Key Terms
4.0 / 5 based on 1 rating
- Created by: DawnWhisker
- Created on: 09-04-14 16:32
Cardiovascular Disease
a type of disease affecting the heart or blood
1 of 51
Coronary Heart Disease
disease affecting the coronary arteries
2 of 51
Stroke
when a blood vessel in the brain bursts or is blocked, damage will occur
3 of 51
Arteries
Muscular vessels coming away from the heart
4 of 51
Capillaries
One cell wide vessels where diffusion allows substances to enter neighboring cells
5 of 51
Veins
Valved vessels returning blood to the heart
6 of 51
Plasma
Straw coloured liquid in the blood into which substances will dissolve
7 of 51
Hydrogen Bonding
Strongest inter-molecular bonding, occurs between positive hydrogen and negative oxygen
8 of 51
Hydrophillic
Polar substances that will mix with water "water loving"
9 of 51
Hydrophobic
Non-Polar substances that won't mix with water "water hating"
10 of 51
Collagen
fibrous protein that gives strength to walls of blood vessels
11 of 51
Systole
where the heart contracts and blood is forced into the arteries
12 of 51
Diastole
When the heart relaxes and the atria fill with blood
13 of 51
Coronary Arteries
Arteries supplying the heart muscle with blood
14 of 51
Cardiac Cycle
one complete cycle of filling and pumping (a heartbeat)
15 of 51
Atrioventricular valves
Valves between the atrium and ventricles
16 of 51
Ventricle
Large chamber between the atrium and artery. Very muscular
17 of 51
Semilunar Valve
Valves preventing backflow between the arteries and ventricles
18 of 51
Atherosclerosis
Disease process leading to coronary heart disease
19 of 51
Thrombosis
Where an artery is blocked by a blood clot
20 of 51
Myocardial Infarction
(Heart attack) Where blood ceases to flow to the heart and tissue damage occurs
21 of 51
Cholesterol
Type of lipid that can be converted into multiple hormones (two types)
22 of 51
Atheroma
Damage or disease to the arteries
23 of 51
Plaque
Build up of foreign matter in the body
24 of 51
Platelets
Cell fragments that clot the blood and assist healing
25 of 51
Prothrombin
Inactive form of Thrombin
26 of 51
Thrombin
enzyme that catalyzes the conversion of fibrinogen to fibrin
27 of 51
fibrinogen
inactive, soluble form of fibrin
28 of 51
fibrin
stringy, insoluble preotein that forms a mesh over wounds, trapping red blood cells and so causing a clot
29 of 51
Angina
pain in chest when the heart does not receive enough oxygen
30 of 51
Causation
a change in 1 variable results in a change in another variable
31 of 51
hypertension
high blood pressure when someone is at rest
32 of 51
Systolic Pressure
pressure when the ventricles are contracting
33 of 51
Diastolic Pressure
pressure when the heart is at rest
34 of 51
Oedema
Swelling caused by the accumulation of tissue fluid
35 of 51
Tissue Fluid
fluid surrounding cells, into which substances can diffuse to supply cells with nutrients
36 of 51
Carbohydrates
substance containing carbon, hydrogen and oxygen
37 of 51
Lipids
fats, don't dissolve in water but do in alcohols
38 of 51
Proteins
Long chains of amino acids
39 of 51
Monosaccharide
single sugar unit
40 of 51
Disaccharide
2 sugar units joined by glycosidic links
41 of 51
Polysaccharide
multiple sugar units joined by glycosidic links (may be branched)
42 of 51
condensation reaction
a joining reaction whereby two substances join to release water
43 of 51
hydrolysis
a substance is split into two using water
44 of 51
basal metabolic rate
basic metabolic rate at rest (but not sleeping)
45 of 51
Obesity
where a person is severely overweight with serious health issues
46 of 51
Body Mass Index
calculated obesity level. (takes into account height and weight)
47 of 51
Waist to hip ratio
measurement of fat around the hips
48 of 51
Insulin
hormone produced by the pancreas to regulate blood sugar levels
49 of 51
High Density Lipoproteins
cholesterol that carries excess fat to the liver to be broken down
50 of 51
Low density Lipoproteins
cholesterol that carries fat into and out of cells
51 of 51
Other cards in this set
Card 2
Front
disease affecting the coronary arteries
Back
Coronary Heart Disease
Card 3
Front
when a blood vessel in the brain bursts or is blocked, damage will occur
Back
Card 4
Front
Muscular vessels coming away from the heart
Back
Card 5
Front
One cell wide vessels where diffusion allows substances to enter neighboring cells
Back
Related discussions on The Student Room
- Do you have to be eloquent in paragraphs in GCSE Science? »
- I got a c in my biology mock and i am in yr13 »
- Really struggling with paper 2 ocr a biology »
- Making flashcards »
- Alevel business questions structure help »
- Best revision resource for Biology OCR? »
- Memorising »
- A- levels »
- need help with Religious Studies revision »
- Advice for getting A*s in A levels »
Similar Biology resources:
0.0 / 5
0.0 / 5
0.0 / 5
4.5 / 5 based on 5 ratings
0.0 / 5
3.5 / 5 based on 3 ratings
3.0 / 5 based on 1 rating
0.0 / 5
0.0 / 5
Comments
No comments have yet been made