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16 terms

Envir Chem Unit B - 1.1-1.4 Part B

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organic
molecules that contain carbon
inorganic
molecules that do not contain carbon
nutrients
elements or compounds that organisms need for living, growing and reproducing.
macronutrients
large scale of nutrients
micronutrients
small scale of nutrients
carbohydrates
A type of organic molecule that contains C, H, O. E.g. Glucose, starch, glycogen
lipids
A type of organic compound composed of C, H, O that forms fats, lipids, waxes.
Proteins
A type of organic molecule that is made up of amino acids that contain C, H, O & N. The function includes: growth & repair, source of energy.
Nucleic Acids
Largest and most complicated molecules found in living things. Made up of phosphates, ribose (simple sugar) and nitrogen. Function: heredity & controls cell activities.
Diffusion
The movement of molecules from an area of higher concentration to one of lower concentration.
Osmosis
A type of diffusion. The movement of water through the walls from an area of high concentration of water to a low concentration of water.
active transport
Using energy to move molecules of nutrients in the direction opposite of diffusion.
Passive transport
Does not use energy to move molecules.
Ingestion
The process of taking food into our bodies.
Hydrolysis
The breakdown (lysis) of large organic molecules using water (hydro)
Substrate
The material on which an organism moves or lives.