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






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






3. The putting together of living things






4. Particles are mixed but not dissolved






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. Absorbs heat; endo - within






7. Stored energy






8. Matter is composed of ______






9. Smallest unit of an element






10. 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






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






12. Many sugars; complex carbs






13. 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)






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






15. The ability to do work






16. 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






17. What is chief ingredient in living things?






18. Gives off heat; exo - outside






19. The living content in a cell






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






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






22. 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






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






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






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






26. Dissolver (water: universal solvent)






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






28. Dissolved






29. Process of making two DNA molecules from one strand






30. Elements essential to life






31. The increase in randomness and loss of usable energy






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






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






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






35. Proteins only one that are...






36. 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 ...






37. Energy in motion






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






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






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