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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. The ability to do work






4. Stored energy






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






6. Matter is composed of ______






7. 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






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






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






10. Energy in motion






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






12. The putting together of living things






13. 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 ...






14. Many sugars; complex carbs






15. Proteins only one that are...






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






17. Dissolver (water: universal solvent)






18. Dissolved






19. The living content in a cell






20. Smallest unit of an element






21. What is chief ingredient in living things?






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






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






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






25. Process of making two DNA molecules from one strand






26. The increase in randomness and loss of usable energy






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






28. Elements essential to life






29. Particles are mixed but not dissolved






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






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






32. Gives off heat; exo - outside






33. 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






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






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






36. Absorbs heat; endo - within






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






38. 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)






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






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