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






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






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






4. Dissolved






5. 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






6. Matter is composed of ______






7. Process of making two DNA molecules from one strand






8. 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






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






10. Stored energy






11. Elements essential to life






12. 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






13. Proteins only one that are...






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






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






16. The putting together of living things






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






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






19. The ability to do work






20. 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 ...






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






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






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






24. Gives off heat; exo - outside






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






26. What is chief ingredient in living things?






27. Particles are mixed but not dissolved






28. 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)






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






30. Energy in motion






31. Absorbs heat; endo - within






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






33. The increase in randomness and loss of usable energy






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






35. Many sugars; complex carbs






36. 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






37. Smallest unit of an element






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






39. Dissolver (water: universal solvent)






40. The living content in a cell