Exchange and transport in animals

Created by

Harley Ellen

Cards (28)

What is glucose ?
an energy rich sugar molecule that provides fuel for cell activities
What is respiration ?
A chemical reaction inside cells that releases energy from glucose
What is aerobic respiration ?
Where glucose is broken down using oxygen
What is anaerobic Respiration ?
Where glucose is broken down without using oxygen
What is lactic acid ?
A bi-product of anaerobic respiration that fatigues muscles
What is oxygen debt ?
the oxygen needed to break down lactic acid after vigorous exercise
What are Erythrocytes ?
Red blood cells that transport oxygen around the body
What is Haemoglobin ?
An iron based protein in red blood cells that bonds with oxygen
What are platelets ?
Broken pieces of blood cell that stick together to help blood clot
What is plasma ?
The liquid part of the blood that transports dissolved substances
What’s the atria ?
Compartments at the top of the heart that receives blood
What are ventricles ?
Compartments at the bottom of the heart that pump blood
What is an artery ?
A vessel that carries blood away from the heart at a high pressure
What is a vein ?
A vessel that carries blood back to the heart at a low pressure
What is a capillary ?
A Tiny blood vessel with thin walls that substances diffuse through
What is double circulation ?
One circuit of blood that collects oxygen whilst another delivers it
What is stroke volume ?
The volume of blood pumped out of the heart in a single beat
What is breathing ? 
The process that moves air in and back out of the lungs
What is gas exchange ?
Absorption of oxygen into the blood in exchange for excreted carbon dioxide
What is alveoli ?
Tiny, very thin air sacs in the lungs where gases are exchanged
Calculation for heart rate, stroke vune and cardiac output ?
Cardiac output = stroke volume x heart rate
what is the heart ?
a large organ in the thoracic cavity
whats the function of the heart ?
to pump blood around the body
whats the structure of the heart ?
has large muscular walls made from specialised cardiac muscle and contains four hollow chambers separated by valves
what system is the heart connected to ?
large blood vessels are connected to the circulatory system ( or vascular system)
whats the cardiac muscle dividing the left and right side of the heart ?
central Septum
how many chambers are there in the heart ?
four chambers
why do veins have valves in them but arteries do not ?? 
the blood in arteries has the force of the heart behind it to move it, the blood in veins does not have the force of the heart but still needs to return so there are veins to stop backflow