Science Entrance Exam Reviewer Questions with Correct Answers.

Biology Correct Answer Study of life Organic Compounds Correct Answer Chemicals that contain carbon atoms Carbohydrates Correct Answer compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body Cellulose Correct Answer Gives strength and protection to plant cells Lipids Correct Answer Are macromolecules such as fats, oils and waxes Proteins Correct Answer Are made of repeating unit of amino acids Enzymes Correct Answer Are proteins that act as biological catalysts Catalyst Correct Answer substance that speeds up the rate of a chemical reaction Nucleic Acids Correct Answer Carriers of hereditary information in living organisms Vitamins Correct Answer Essential to life but not required as energy sources. It is necessary in very small amount for body growth and activity Inorganic compounds Correct Answer Compounds that do not contain carbon Water Correct Answer Most abundant inorganic compound Carbon dioxide Correct Answer Supplies the carbon found in substances made by living things Life functions Correct Answer All living things carry out certain activities or functions in order to maintain life Nutrition Correct Answer The process by which your body takes in and uses food to provide energy for life, promote grow and repair or replace damages tissues Transport Correct Answer Involves absorption and circulation Metabolism Correct Answer The chemical process by which the body breaks down food to release energy