Cell Organisation - Topic 2 0.0 / 5 ? ScienceBiologyGCSEAQA Created by: Riya.b123Created on: 19-02-19 14:55 Alveoli Tiny air sacs in the lung - where gas exchange occurs 1 of 15 Tissue A group of similar cells which work together to carry out a specific function 2 of 15 Catalyst Substance which increases speed of a reaction whithout being used up or changed in the reaction 3 of 15 Calculating Rate of Reaction 1000/ time 4 of 15 Arteries Carries blood away 5 of 15 Vein Carries blood back to heart 6 of 15 Capillaries Exchange materials at tissues 7 of 15 Platelet Small fragment of cells 8 of 15 Cardiovascular Disease or CHD When coronary arteries become blocked and narrowed by layers of fat deposits restricting blood flow 9 of 15 Communicable Disease Spread from person to person - sometimes contagious or infectious 10 of 15 Non-Communicable Disease Cannot spread between people or animals - last for a long time & worsen over time 11 of 15 Benign Tumour One which slowly grows until no room - non invasive therfore not dangerous 12 of 15 Malignant Tumour One which slowly spreads to healthy tissues - travels in bloodstream - dangerous - fatal 13 of 15 Active Site Part of an enzyme which a substrate fits onto 14 of 15 Denature Change in an enzyme's active site due to high temperatures 15 of 15
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