Transport in animals

Gurdev Manchanda
Mind Map by Gurdev Manchanda, updated more than 1 year ago
Gurdev Manchanda
Created by Gurdev Manchanda about 5 years ago


AS UNIT F211, module 2 transport in animals. unfinished

Resource summary

Transport in animals
1 the circulatory system
1.1 multicellular organisms need transport systems
1.1.1 relatively large = low surface area to volume ratio diffusion isn't efficient enough
1.1.2 very active large no. cells respiring quickly = need a constant, rapid supply of glucose and oxygen Diffusion isn't efficient enough cannot supply cells in centre fast enough using diffusion
1.2 systems
1.2.1 single circulatory system FISH gills heart rest of body gills only pass through heart once
1.2.2 double circulatory system pass through heart twice MAMMELS heart lungs heart PULMONARY LOOP body SYSTEMIC SYSTEM
1.2.3 open circulatory system blood isn't always enclosed in blood vessels flows freely through the body cavity INSECTS HEART main artery body cavity blood flows around insects organs heart
1.2.4 closed circulatory system blood enclosed inside blood vessels FISH arteries capillaries veins heart substances - glucose and oxygen- diffuse body cells
2 heart basics
2.1 structure
2.1.1 septum separates ventricles oxygenated and deoxygenated blood separated
2.1.2 valves tendinous cords attach valves to walls prevent valves from turning inside out AV valve fill up, then pour into ventricles when it contracts atrial contraction - valves open bp in atria higher than bp in ventricles ventricular contraction - valves clolse bp in ventricles higher than bp in atria SL valve base of major arteries prevents backflow as ventricles relax fill w/blood then shut
2.1.3 atria ventricles thinner muscle only transfer blood to ventricles
2.1.4 ventricles right lungs thinner wall than left high pressure could easily burst the capillaries left wall x2-3 thicker than right higher blood pressure to overcome the resistance of systemic circulation
3 electrical activity of the heart
4 blood vessels
4.1 tissue fluid
4.1.1 formed from blood
4.1.2 forms lymph
4.1.3 surrounds cells in tissue
4.2 capillaries
4.2.1 single cell wall decreased diffusion gradient
4.3 veins
4.4 arteries
4.4.1 coronary arteries lie over surface of heart carry oxygenated to heart constricted reduced blood flow to heart reduce oxygen to heart angina/ heart attack
4.5 lymph vessels
5 haemoglobin
5.1 structure
5.1.1 4 polypeptide chains haem group iron
5.2 the bohr shift
5.2.1 actively respiring tissue = need more oxygen
5.2.2 move curve to RIGHT
5.2.3 decreased affinity for oxygen
5.3 fetal haemogolobin
5.3.1 placenta = lower ppO2 must be able to saturate its haemoglobin w/ oxygen must have higher affinity for oxygen
5.3.2 move curve to LEFT
Show full summary Hide full summary


F211: Transport in animals keywords and info
Gurdev Manchanda
F211- Module 1 Cells, exchange and transport
Jessica Phillips
Cell Structure
Exchange surfaces and breathing
OCR AS Biology
Biology Unit 2 - DNA, meiosis, mitosis, cell cycle
Cells And Cell Techniques - Flashcards (AQA AS-Level Biology)
Henry Kitchen
Biology AQA 3.2.5 Mitosis
Biology- Genes, Chromosomes and DNA
Laura Perry
Biology AQA 3.1.3 Osmosis and Diffusion