Test your basic knowledge |

CLEP Biology: Chemistry Of Biology

Subjects : clep, science, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Contain hydrogen - oxygen - nitrogen - sulfur - phosporus - and some metal ions.






2. Connected monomers (Amino Acids).






3. A chemical that accepts protons when dissolved in water. Above 7 on the pH scale.






4. Neutral charged particles in the nucleus of an atom.






5. A type of carbohydrate






6. Acids and bases. When combined in water they produce water and a salt (ionic compound)






7. When threee monosaccharide's combine.






8. The last shell of the electron cloud. Atoms are more stable when this shell is full.






9. A substance that changes the speed of a reaction. The catalyst is not affected at all during this reaction. All catalyst end in -ase.






10. Sugar molecule in RNA






11. This is a catlyst. All catalysts end with this.






12. A polysaccharide made of joined glucose units. Used by many animals for short term energy. Found in muscle and liver tissue.






13. Sugare molecule in DNA






14. The reacting molecules of a chemical reaction.






15. The double helix model of DNA.






16. Negative charged particles of an atom. They orbit the nucleus. They have much less mass than protons and neutrons.






17. That matter and energy is neither created nor destroyed.






18. A chemical that donates protons when dissolved in water. Below 7 on the pH scale






19. What is the strongest chemical bond?






20. Monomers that form nucleic acids. Each one has a sugar group and a phosphate group with a nitrogen base.






21. The force of attraction between water molecules that hold them together . A weak chemical bond.






22. A reaction that produces energy






23. A type of carbohydrate






24. DNA and RNA. These are polymers (proteins)






25. An atom that has the same number of protons and electrons.






26. Compounds that contain carbon.






27. When two or more atoms form a unique substance via a chemical bond. Water is an example.






28. Center of an atom. The number of protons in the nucleus is the same as the atomic number on the periodic table of elements.






29. A single amino acid






30. In every living cell. Large chains of amino acids.






31. All reaction spread energy which tend to diminish it's availability.






32. Contain Carbon - Hydrogen - Oxygen - Nitrogen - and sometimes sulfur and phospoirus. 20 common amino acids that make thousands of different proteins.






33. Six carbon sugars. The most commone monosaccharide. They are usually ring shaped.






34. A reaction that requires energy






35. A compund that is able to dissolve many types of organic and inorganic compunds






36. Made of Carbon - hydrogen - and oxygen. The Ratio of H and O is always 2:1. Just like water.






37. A special protein. It functions as a catalyst for reactions






38. A charged atom. More protons that electrons makes a positive ion and more electrons than protons makes a negative ion.






39. Deoxyribonucleic acid. Two strands that pair up via a hydrogen bond. They form a double helix shape.






40. Long term energy storage.






41. Molecules that have regions of a partial charge. Water molecules have a positive hydrogen charge.






42. When positive and negative ions are attracted to each other. Weaker than a covalent bond. Table salt is an ionic bond.






43. The bond that holds monmers together to form polymers.






44. Form components of cel membranes.






45. The result of a chemical reaction.






46. Most common starch in a plant cell. It is a long chain of water insoluable polysaccharides






47. In a chemical reaction when a compound breaks down into components






48. When a compund breaks apart and forms a new compund with a free reactant.






49. When compounds combine.






50. The building blocks of all matter.