Summary: Chemie Van Het Leven

Read the summary and the most important questions on Chemie van het leven

• Chapter 2 - Part 1

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• What are virtually all medicines/drugs? (such as aspirin, gleevec and lipitor)

  Organics molecules

• One of the first man made medicine?

  Aspirin

• What is the drug lipitor good for?

  Effective drug maintaining cholestral

• Concept 2.2: An element's properties depend on the structure of its atoms.

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• What subatomic particles does an atom have?

  Neutron, that has no electrical charge. A proton, that has a positive charge and an electron, that has a negative charge.

• Concept 2.2: Atoms and electrons

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• What is an electron shell?

  An electron shell/ energy level is an electron's state of potential energy.

• What is the OCTET rule?

  A rule that states that to achieve a stable configuration, elements need 8 electrons in their outermost shell.  (exception H, He, Li)

• Concept 2.1: All matter is created from the fundamental elements

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• What is a compound?

  A compound is what we consider as the combination between/ substance consisting of two or more elements in a fixed ratio. Also called molecule.

• What are the most important elements? (in perspective of the living system)

  Carbon, hydrogen, oxygen and nitrogen (96% of living matter)

• What elements are the remaining 4% of the living system?

  Calcium, phosphorus, potassium and sulfur.

• What are trace elements?

  Trace elements are in large amount very toxic, but are required by organisms in only minute quatities.