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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. Absorbs heat; endo - within






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






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






4. Gives off heat; exo - outside






5. The ability to do work






6. 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)






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






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






9. Dissolved






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






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






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






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






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






15. Elements essential to life






16. 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






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






18. The living content in a cell






19. What is chief ingredient in living things?






20. The increase in randomness and loss of usable energy






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






22. Matter is composed of ______






23. 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






24. 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






25. Smallest unit of an element






26. Energy in motion






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






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






29. Dissolver (water: universal solvent)






30. The putting together of living things






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






32. 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 ...






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






34. Process of making two DNA molecules from one strand






35. Proteins only one that are...






36. Particles are mixed but not dissolved






37. 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






38. Stored energy






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






40. Many sugars; complex carbs