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. Sugar molecule in RNA






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






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






4. Compounds that contain carbon.






5. When four or more monosaccharide's combine.






6. Results of the structure of atoms and their interactions with each other.






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






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






9. The building blocks of all matter.






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






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






12. Ribonucleic acid. Generally a single strand






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






14. A chemical bond between atoms when they share electrons between their valence shells. These are the strongest chemical bonds.






15. A single amino acid






16. A reaction that requires energy






17. When threee monosaccharide's combine.






18. What is the strongest chemical bond?






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






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






21. A type of carbohydrate






22. A polysaccharide. Plant's store starches in their cell's for future energy. Also used for structure in a plant's cell. The most common is cellulose






23. Long term energy storage.






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






25. Contain hydrogen - oxygen - nitrogen - sulfur - phosporus - and some metal ions.






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






27. Provide a moisture barrier.






28. A reaction that produces energy






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






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






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






32. The result of a chemical reaction.






33. Positive charged particles in the nucleus of an atom.






34. Sugare molecule in DNA






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






36. A type of carbohydrate






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






38. Form components of cel membranes.






39. The amount of energy in a electron cloud. The weakest level is the shell closest to the nucleus. As the shell gets stronger more electrons may fill it. Electron fill the shell closest to the nucleus.






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






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






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






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






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






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






46. The basic sugar unit.






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






48. The double helix model of DNA.






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






50. Also referred to as the electron shell and orbital. It is the 3 dimensional space that electron orbit the nucleus.