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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. 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






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






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






4. 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






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. Many sugars; complex carbs






7. 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






8. Matter is composed of ______






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






10. Proteins only one that are...






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






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






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






14. Gives off heat; exo - outside






15. 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)






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






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






18. Stored energy






19. What is chief ingredient in living things?






20. The ability to do work






21. Elements essential to life






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






23. Dissolver (water: universal solvent)






24. Smallest unit of an element






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






26. The increase in randomness and loss of usable energy






27. The putting together of living things






28. Dissolved






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






30. Energy in motion






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






32. Particles are mixed but not dissolved






33. The living content in a cell






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






35. 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 ...






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






37. Absorbs heat; endo - within






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






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






40. Process of making two DNA molecules from one strand