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CLEP Biology: Chemistry Of Biology

Subjects : clep, science, biology
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. A single amino acid

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

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

4. Organic compound made of carbon - hydrogen and oxygen. Ratio of H to O is alway greater than 2:1. Includes waxes - steroids - phospholipids - and fats.

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

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

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

8. Long term energy storage.

9. A type of carbohydrate

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

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

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

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

14. When threee monosaccharide's combine.

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

16. The building blocks of all matter.

17. Sugar molecule in RNA

18. A type of carbohydrate

19. Compounds that contain carbon.

20. When compounds combine.

21. 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.

22. Form components of cel membranes.

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

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

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

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

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

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

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

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

31. 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

32. The reacting molecules of a chemical reaction.

33. When four or more monosaccharide's combine.

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

35. Sugare molecule in DNA

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

37. A reaction that requires energy

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

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

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

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

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

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

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

45. The result of a chemical reaction.

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

47. Ribonucleic acid. Generally a single strand

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

49. The basic sugar unit.

50. Connected monomers (Amino Acids).