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






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






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






5. When threee monosaccharide's combine.






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






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






8. DNA and RNA. These are polymers (proteins)






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






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






11. Sugar molecule in RNA






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






13. Long term energy storage.






14. Ribonucleic acid. Generally a single strand






15. Provide a moisture barrier.






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






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






18. A single amino acid






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






20. The building blocks of all matter.






21. Form components of cel membranes.






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






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






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






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






26. Sugare molecule in DNA






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






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






29. A reaction that produces energy






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






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






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






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






34. The double helix model of DNA.






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






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






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






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






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






40. The reacting molecules of a chemical reaction.






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






42. When four or more monosaccharide's combine.






43. A type of carbohydrate






44. The result of a chemical reaction.






45. The bond that holds monmers together to form polymers.






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






47. 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.






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






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






50. Connected monomers (Amino Acids).