Random Crap Flashcards
Define movement
Action by an organism causing a change in position or place
Respiration
Chemical reaction in cells that break down nutrient molecules to release energy
Sensitivity
Ability to detect and respond to changes in the environment
Growth
Permanent increase in size
Reproduction
Process that makes more of the same kind of organism
Nutrition
Taking in of materials for energy, growth and development
Function of ciliated cells
Movement of mucus in the trachea and bronchi
Diffusion
Net movement of particles from an area of high concentration to a region of lower concentration
Osmosis
Net movement of water molecules from a region of higher water potential to a region of lower water potential
Test for starch
Iodine - turns blue black
Test for reducing sugars
Benedict’s solution - yellow -> bright orange
Test for proteins
Biuret test - purple color
Test for fats and oils
Ethanol emulsion - cloudy white
Enzymes
Proteins that function as biological catalysts
What’s in a balanced diet (7)
- Carbs
- Fats
- Proteins
- Vitamins
- Mineral salts
- Fibre
- Water
Ingestion
Taking in of substances into the body through the mouth
Digestion
Breakdown of large insoluble molecules down into soluble molecules using chemical and mechanical processes
Absorption
Movement of digested food molecules through the walls of the intestines into the blood.
Assimilation
Movement of digested food molecules into the cells of the body where they are used, becoming part of the cell
Egestion
Passing out of food that has not been digested as feces through the anus
Amylase
Breaks down starch into simpler sugars
Protease
Breaks down protein into amino acids
Lipase
Breaks down fats into fatty acids and glycerol
Bile
Neutralizes acids coming from stomach
