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






2. 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)






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






4. Elements essential to life






5. 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






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






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






8. Dissolved






9. Stored energy






10. Energy in motion






11. What is chief ingredient in living things?






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






13. Smallest unit of an element






14. 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






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






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






17. Many sugars; complex carbs






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






19. The increase in randomness and loss of usable energy






20. Proteins only one that are...






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






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






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






24. Gives off heat; exo - outside






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






26. 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






27. Dissolver (water: universal solvent)






28. Particles are mixed but not dissolved






29. The putting together of living things






30. The ability to do work






31. 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 ...






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






33. Absorbs heat; endo - within






34. The living content in a cell






35. Matter is composed of ______






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






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






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






39. 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






40. Process of making two DNA molecules from one strand