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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. What is the strongest chemical bond?






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






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






4. Sugare molecule in DNA






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






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






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






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






9. When threee monosaccharide's combine.






10. A reaction that requires energy






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






12. A reaction that produces energy






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






14. Monomers that form nucleic acids. Each one has a sugar group and a phosphate group with a nitrogen base.






15. The building blocks of all matter.






16. The basic sugar unit.






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






18. The result of a chemical reaction.






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






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






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






22. A single amino acid






23. The reacting molecules of a chemical reaction.






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






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






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






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






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






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






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






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






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






33. When compounds combine.






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






35. Provide a moisture barrier.






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






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






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






39. Connected monomers (Amino Acids).






40. Compounds that contain carbon.






41. When four or more monosaccharide's combine.






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






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






44. Long term energy storage.






45. A type of carbohydrate






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






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






48. 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.






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






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