B5 + B6 by Ipshita BAG https://padlet.com/bag118161/yxhl3o3ekd3q Made with wonder en-us 2018-09-27 05:52:47 UTC 2018-09-27 06:30:54 UTC hello@padlet.com Which features of the heart and blood vessels enable their role in the transport of blood? bag118161 https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286348820 Veins
Carries deoxygenated blood back to heart (aside from the pulmonary vein which is oxygenated and comes from the lungs)

Arteries
Carries oxygenated blood away from the heart to the body (aside from the pulmonary artery which is deoxygenated and goes to the lungs)

Capillaries

Valves
Prevents blood from flowing back to the previous location (for example the tricuspid valve prevents blood from the right ventricle going back to the right atrium).]]> 2018-09-27 05:54:59 UTC https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286348820 How do multicellular organisms transport nutrients, eliminate waste and defend themselves against disease? https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286349577 Transport Nutrients
A simple, unicellular organism (consisting of one cell) can rely on diffusion to move substances into and out of the cell. Its surface area is large compared to its volume, so nutrients and other substances can pass quickly through the membrane and around its ‘body'


Eliminate Waste


Defend against disease 
The body’s first line of defence against harmful pathogens is the skin and stomach acid, the second is white blood cells. Vaccination involves exposing the body’s immune system to a weakened or harmless version of the pathogen in order to stimulate white blood cells to produce antibodies.]]> 2018-09-27 05:59:57 UTC https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286349577 Why do multicellular organisms need specialised respiratory structures? bag118161 https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286351642 So that they can perform their functions properly

]]> 2018-09-27 06:13:48 UTC https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286351642 Red Blood cells Adaptations bag118161 https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286352361 No nucleus
To make more space for hemoglobin

Biconcave shape
To maximise surface area]]> 2018-09-27 06:17:53 UTC https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286352361 Alveoli Adaptations bag118161 https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286352385 Thin walls

Good blood supply

Large surface area

Moist]]> 2018-09-27 06:18:01 UTC https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286352385 Lung Infection https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286353562 Preventing Lung Infection:
Mucus -->  Traps pathogenss
Cillia --> beat & move mucus up out of the respiratory system]]> 2018-09-27 06:24:16 UTC https://padlet.com/bag118161/yxhl3o3ekd3q/wish/286353562