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CLEP Biology: Organic Chemistry

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. 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.






2. Occurs when there is?






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






4. Macromolecules made from polypeptides. Two type are globular and fibrose.






5. 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. -






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






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. An uncharged subatomic particle located in the nucleus.






9. A compound that contains carbon.






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






11. Three roles of Macromolecules.






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






13. Group of Macromolecules that Includes Triglycerides and Phospholipids.






14. A bond whose electrons are shared between atoms.






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






16. Biological compounds containing and amino group and a carboxylic acid group.with one of 20 side chains.






17. A group of at least two covalently bonded atoms






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






40. 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






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






42. Tentative - untested explanation of a scientific issue.






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






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






45. 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.






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






47. The fundamental unit of chemical matter.






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






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






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