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CLEP Biology: Basic Chemistry

Subjects : clep, science, biology
Instructions:
  • Answer 40 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. Made of amino acids; polypeptide chain of amino acids; make up the majority of an organism's cells; used as enzymes or as building blocks






2. Smallest unit of an element






3. Most abundant form of lipids; building blocks for other lipids; have hydrophilic and hydrophobic ends; in water - will align themselves; good source of energy; found in dairy and animal tissues






4. Dissolved






5. Can change between gel and sol phases (ex. protoplasm)






6. Elements essential to life






7. The putting together of living things






8. Another nucleic acid; single strand; sometime replaces thymine






9. Process of making two DNA molecules from one strand






10. Is a polysaccharide; stored by plants; a major energy source for humans; humans can't make it






11. Proteins only one that are...






12. Particles are mixed but not dissolved






13. Gives off heat; exo - outside






14. Affect the rate of the reaction but are not changed in the reaction






15. Absorbs heat; endo - within






16. Polysaccharide; strong and flexible; makes up shells of crabs - lobsters - shrimp - insects; found in cell walls of fungi






17. Matter is composed of ______






18. Mixture of fine particles that do not settle out quickly (ex. protoplasm)






19. Organic compounds that contain carbon - hydrogen and oxygen; provide structure and store energy






20. Whenever energy is used - some of the energy is wasted






21. Group of organic substances slightly soluble in water; very soluble in other organic liquids; mostly structural but also store energy; humans and animals store their excess energy as lipids






22. Composed of long chains of glucose; is a polysaccharide; found in plant cell walls; nondigestible by most animals; part of our diet called bulk or rubbage(fiber)






23. Many sugars; complex carbs






24. Energy in motion






25. Homogenous(alike) mixture of one or more substances in another substance






26. The diffusion of water(!!) through a semipermiable membrane; equilibrium is never reached.






27. The ability to do work






28. In any process - energy is neither created nor destroyed






29. Made of nucleotides; sugar - phosphate - base; adenine - thyOOmine; guani`ne - cytosine






30. The living content in a cell






31. Cannot change between gel and sol (ex. egg whites)






32. Polysaccharide; animal starch (animals and humans eat starches abd break them down to monosaccharides; the liver converts them to glycogen for storage)






33. Double sugars; maltose - sucrose - lactose; formed when monosaccharides undergo dehydration synthesis - when a suger looses hydrozyl group (OH) and another gives hydrogen - resulting in a water molecule and a ...






34. When a cell needs a monosaccharide - enzymes cause disaccharides to undergo hydrolysis - which means the breaking down of a disaccharide by adding a water molecule






35. The increase in randomness and loss of usable energy






36. Stored energy






37. Dissolver (water: universal solvent)






38. Found in nucleus of cell; contain info necessary for the manufacture of an organism's proteins; nucleic acid form genes; watson and crick discovered






39. What is chief ingredient in living things?






40. Single sugars; glucose(C6H12O6) is a monosaccharide that is manufactured by plants in photosynthesis