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






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






3. Elements essential to life






4. 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






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






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






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






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






9. 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 ...






10. Gives off heat; exo - outside






11. Process of making two DNA molecules from one strand






12. 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






13. Matter is composed of ______






14. The ability to do work






15. The increase in randomness and loss of usable energy






16. Dissolved






17. Energy in motion






18. 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






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






20. Many sugars; complex carbs






21. Particles are mixed but not dissolved






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






23. Dissolver (water: universal solvent)






24. The putting together of living things






25. What is chief ingredient in living things?






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






27. The living content in a cell






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






29. Stored energy






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






31. Proteins only one that are...






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






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






34. 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)






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






36. 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






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






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






39. Smallest unit of an element






40. Absorbs heat; endo - within