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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. 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






2. 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






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






4. Proteins only one that are...






5. Elements essential to life






6. 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






7. 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)






8. Process of making two DNA molecules from one strand






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






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






11. Smallest unit of an element






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






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






14. What is chief ingredient in living things?






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






16. 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 ...






17. The living content in a cell






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






19. The putting together of living things






20. The increase in randomness and loss of usable energy






21. Particles are mixed but not dissolved






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






23. The ability to do work






24. Dissolver (water: universal solvent)






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






26. Gives off heat; exo - outside






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






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






29. Energy in motion






30. 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






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






32. Matter is composed of ______






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






34. Absorbs heat; endo - within






35. Many sugars; complex carbs






36. Dissolved






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






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






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






40. Stored energy