B4 - Organising Animals And Plants Flashcards
Multi-Cellular Organisms with a _____ Surface Area to ______ Ratio often have Specialised Transport Systems.
Small…Volume…
What does the Human Circulatory System consist of?
Blood, Blood Vessels and Heart.
Blood is based on a Liquid called ______.
Plasma.
Plasma carries Red and White _____ Cells, and Platelets.
Blood.
Blood Plasma is a ______ Liquid.
Yellow.
Plasma has _____ Cells suspended inside it.
Blood.
Plasma transports ________ and other Chemicals around the body.
Proteins.
Waste Carbon _______ produced by the Plasma is carried to the Lungs for Respiration (_________).
Dioxide…Breathing…
Red Blood ______ carry Oxygen from the air to Cells in the body.
Cells.
Red Blood Cells are shaped as Discs which _______ their Surface _____ to Volume _____ for Diffusion.
Increase…Area…Ratio…
Red Blood Cells are packed with something called Haemoglobin that binds to ______.
Oxygen.
Red Blood Cells have no _______, making more space for Haemoglobin.
Nucleus.
White Blood Cells are much ______ than Red Blood Cells but there are fewer of them.
Bigger.
White Blood Cells have a _______ and form part of the bodies Defence ______ against harmful Micro-Organisms.
Nucleus…System…
___________ form Anti-Bodies against harmful Micro-Organisms.
Lymphocytes.
__________ engulf and digest invading Bacteria and Viruses.
Phagocytes.
Platelets have __ Nucleus and are important in helping the Blood to ____ at a Wound.
No…Clot…
White Blood Cells help to protect the body against _________.
Infection.
_____ Clotting protects the new Skin as it grows and stops any ________ entering the Body through the Wound.
Blood…Bacteria…
Which three ways is Blood carried around the body?
Through the Arteries, Veins and Capillaries.
Arteries carry Blood away from the Heart to the ______ in the Body.
Organs.
How do Arteries force Blood through them?
By Stretching.
Arteries have thick _____ containing _______ and Elastic Fibres.
Walls…Muscles…
Veins carry _____ away from the Organs towards the _____.
Blood…Heart…
Veins __ ___ have a Pulse.
Do Not.
Veins have much thinner Walls than ________.
Arteries.
Veins have valves which control the amount of _____ getting towards the Heart.
Blood.
Capillaries form a network of tiny _______ which link to the Arteries and Veins.
Vessels.
Capillaries are narrow with very ____ Walls.
Thins.
Capillaries enable Glucose and Oxygen to diffuse easily out of your _____ towards Cells.
Blood.
Substances produced by Cells pass easily into the _____ through the ____ Walls of the Capillaries.
Blood…Thin…
Human Beings have a double ___________ System.
Circulatory.
The first Transport System carries _____ from the Heart to the Lungs then back again allowing Oxygen and Carbon _______ to be exchanged with the Air.
Blood…Dioxide…
The second Transport System carries _____ from the Heart to all the other Organs in the body and back again.
Blood.
Walls of the _____ are made up of Muscle. This Muscle is supplies with _______ by the Coronary Arteries.
Heart…Oxygen…
Blood enters the top chambers of the _____, which are called the Atria.
Heart.
Blood coming into the Right ______ from the Vena Cava is De-Oxygenated Blood from the Body.
Atrium.
Blood coming into the Left ______ in the Pulmonary Vein is Oxygenated Blood from the Lungs.
Atrium.