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5 Written questions

5 Matching questions

  1. Chemical Energy
  2. Triglycerides
  3. The electron donor acquires a net positive charge called...
  4. Isotopes
  5. (+) positive charge in the nucleus
  1. a cation
  2. b Protons
  3. c Nearly all known elements have two or more structural variations, which differ in the number of neutrons they contain.
  4. d is the form stored in the bonds of chemical substances. Example: may be found in the food we eat
  5. e known as (saturated - fats) when solid or (unsaturated - oils) when liquid. composed of two types of building blocks, fatty acids and glycerol.

5 Multiple choice questions

  1. Chemical energy- as you digest food (metabolism) it is broken down and ATP is formed to power processes in the body.
  2. Glycogen
  3. is and average of relative weights (mass numbers) of all the isotopes of an element
  4. are basically flat molecules made of four interlocking hydrocarbon rings. (fat soluble and contain little oxygen)
  5. chief components of cell membranes. Participate in the transport of lipids in plasma, prevalent in nervous tissue

5 True/False questions

  1. a substance that releases hydrogen ions (H+) in detectable amounts. also defined as proton donors.Acid


  2. When atoms combine with other atoms, they are held together by...a chemical bond


  3. What type of energy is available when we are still? When we are exercising?Potential energy (PE) is available when we are still. PE is converted to kinetic (working) energy when we exercise.


  4. Substance present in the greatest amountssolvent


  5. RadioisotopesThe process of atomic decay is called radioactivity, and isotopes that exhibit this behavior are called...