B4 - Organising Animals And Plants Flashcards
(97 cards)
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…