Chapter 4 - Animal Tissue, Organs and Systems Flashcards
What is insoluble?
Can not dissolve
What is soluble?
Can dissolve
What is an Enzyme?
A biological molecule that speeds up a chemical reaction.
What is a Sphincter?
A ring of muscle that can open or close a tube
What is a Pathogen?
A disease-causing microorganism
E.g a bacterium or fungus
What is bile and where is it stored in the digestive system?
A green coloured liquid produced by your liver, stored in the gall bladder.
Released into the small intestine to help break down fats.
What is Lipids?
Fats or oils, which are insoluble in water.
What is defecation?
Removing solid waste from the body
What are substrates?
The molecules on which an enzyme acts.
What is the product?
The substances produced by an enzyme reaction.
What is the lock and key hypothesis for enzymes?
A model that explains the action of enzymes.
What is an active site?
The region of an enzyme that binds to its substrate.
What is the meaning of denatured?
A permanent change to an enzyme as a result of extremes of pH or high temperature, which stop it working.
What is an artery?
The blood vessel that carry’s blood away from the heart.
What is a vein?
A blood vessel that carries blood towards the heart.