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CLEP Biology: Organic Chemistry

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 process in which a substance or substances are converted into one or more new substances with different propertied and composition.

2. The tendency of an atom in a bond to attract shared bonding electrons.

3. The amount of heat needed to raise the temperature of a 1 gram sample of a substance by 1 degree Celsius.

4. The study of life and living organisms. A problem solving process.

5. Very large molecules with molecular masses as high as several million atomic mass units. Polymers of small similar molecules. Includes Polysaccharides - fats - and proteins.

6. Gradual process by which something changes into a different and usually more complex form.

7. A weak to moderate attractive force between a hydrogen atom bonded to oxygen - nitrogen - or fluorine - and an oxygen - nitrogen or fluorine atom on another molecule. Usually represented by dotted lines.

8. One of the most abundant carbohydrates providing either energy storage or structural support. Polymers of 10 or more simple sugars - composed of thousands of monomers and up to 100M molecular mass.. Includes Cellulose in plants and Chitin animals wit

9. Group of Macromolecules that Includes Triglycerides and Phospholipids.

10. An atom's center of mass and center of positive charge.

11. A chemical bond formed by the attraction between positive and negative ions.

12. The energy needed to increase the surface area of a liquid by a given amount.

13. A group of at least two covalently bonded atoms

14. State problem - refine the problem - propose hypothesis - make observations -

15. A bond whose electrons are shared between atoms.

16. Basic biological molecules join to form larger biological __________.

17. The main oxygen carrying protein in blood. Globular.

18. Used by organisms to produce energy - Most common form is glucose. Also includes Fructose and - less commonly - Ribose - and Deoxyribose.

19. Where two molecules are joined by the elimination of a smaller molecule.

20. The main oxygen transport protein in blood. Made of two alpha chains and two beta chains.

21. A negatively charged subatomic particle located outside the nucleus.

22. A condition or state in which a substance has an uneven distribution of electron density. Enables compounds to dissolve and enables hydrogen bonding.

23. The main oxygen transport protein in muscle. Made of a single chain.

24. A compound containing a nitrogenous base covalently bonded to a pentose sugar and a phosphate group. Classified by the pentose sugar they contain - Ribose or Deoxyribose.

25. A positively charged subatomic particle located in the nucleus.

26. All organisms in an area together with the physical environment which they inhabit.

27. A collection of organisms whose members interact with each other within an ecosystem.

28. A liquid which dissolves another substance without any change in its chemical composition.

29. Occurs when there is?

30. A compound that contains carbon.

31. The fundamental unit of chemical matter.

32. The attractive force between molecules in one phase and different molecules in another phase.

33. Occurs when one atom in a bond is more electronegative than the other.

34. A charged species that results from the gain or loss of electrons from a neutral atom or molecule.

35. The attractive force between similar molecules in the same phase.

36. A chemical reaction produces energy when the difference between the reactants and the products is ____________zero.

37. Three roles of Macromolecules.

38. A form of matter tha cannot be decomposed into simpler substance by ordinary chemical methods.

39. Have ths same molecular formul;a but different chemical and physical properties. The atoms are bonded in a different order. Some hydrocarbons are an example of Isomers.

40. A specific combination of bonded atoms that reacts in a characteristic and predictable way. Examples are Ethers and Alchohols which are represented by a generic molecule. Includes Alchohol - Ether - Aldehyde - Ketone - Carboxylic Acid - and Ester. -

41. A compound containing a nitrogenous base covalently bonded to a pentose sugar

42. Tentative - untested explanation of a scientific issue.

43. An expression indicating the number of each type of atom in one molecule of a substance.

44. Atoms of the same element with different number of neutrons in the nuclei.

45. An uncharged subatomic particle located in the nucleus.

46. The act or process of causing something to happen -

47. A statistical comparison of two variables. Does not necessarily mean that one causes the other.

48. An attractive forve between tow or more atoms or ions that holds them together.

49. A substance composed of two or more elements combined in fixed proportions.

50. The six elements that make up 99% of the matter in living systems.