Biology B1 Flashcards
What does Metabolic rate mean?
How fast you digest food
What is a reflex?
An automatic action such as blinking or gagging
What does a receptor do?
Senses things
What does a sensory neurone do?
Carries a nerve from a receptor to the spinal chord.
What is the role of the synapse?
To be a junction between two nerves
Pathogen
A disease causing micro-organisms, bacteria, virus and fungi
Extremophile
Lover of far from normal
Thermophile
Lover of heat- can survive high temps because they have a special enzymes that do not denature in high temps
Halophile
Lover of salt
Barophile
Lover of pressure
Lymphocytes
Makes antibodies
Phagocytes
Ingest pathogens
Antigen
Foreign substance that induces an immune response, often the production of antibodies
Antibodies
Protein molecule, produced by whit blood cells in response to an antigen
Vaccines
- Injected with a small amount od dead or inactivated pathogen
- White blood cells remember the shape of the antigen