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






2. The reacting molecules of a chemical reaction.






3. The result of a chemical reaction.






4. When four or more monosaccharide's combine.






5. The basic sugar unit.






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






7. 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.






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






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






10. When two monosaccharide units form together. Glucose and fructose make table sugar. A water molecule is liberated when one is formed.






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






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






13. A reaction that requires energy






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






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






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






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






18. A type of carbohydrate






19. Long term energy storage.






20. Form components of cel membranes.






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






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






23. Connected monomers (Amino Acids).






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






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






26. The building blocks of all matter.






27. A single amino acid






28. Another name for proteins. Nameds this because of the peptide bonds that monomers use to connect together.






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






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






31. Provide a moisture barrier.






32. A type of carbohydrate






33. When threee monosaccharide's combine.






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






35. The double helix model of DNA.






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






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






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






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






40. A substance that can't be broken down into any other substance. The simplest form of an element is an atom.






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






42. Two or more atoms held together by a covalent bond.






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






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






45. A reaction that produces energy






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






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






48. Sugare molecule in DNA






49. When two or more molecules react with each other to form one or more moleculte types.






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