Biology Flashcards
Why don’t you get ill from the same illness twice?
The antibodies remain in your blood stream so if you become ill with the same bacteria, your body knows how to treat it straight away
How to vaccines help?
A vaccine is just a dead or weak bacteria cell which is injected into you. Your body fights off this small amount of infection and next time you catch this dangerous bacteria, your body will fight it before you get any of the symptoms
How does your body fight infections?
Your body produces more white blood cells which make the correct antibodies to envelop and kill the bacteria
Name the 4 chambers of the heart
Left atrium
Right atrium
Left ventricle
Right ventricle
What is the special white blood cell called?
Phagocyte
Name the natural defences your body has
Mucus - nose
Ciliated Cells - trachea
Chemicals - tears
Skin
Define a species
A species is a group of organisms who can reproduce to have offspring who can also reproduce
Equation for aerobic respiration
Glucose + Oxygen –> Carbon Dioxide + Water
Equation for anaerobic respiration
Glucose –> Lactic Acid
What is the cause of meningitis?
Bacteria which lives within the intestines and works it’s way to the brain
What does spinablifida effect?
A birth defect which caused problems in the spine
What does Parkinson’s effect?
Writing
Walking
Speaking
What is the gestation period?
The time between being ill and the White blood cells fighting back
What is genetic engineering?
Cloning a single animal
What is selective breeding?
Breeding animals which certain characteristics
