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






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






4. Elements essential to life






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






6. Dissolver (water: universal solvent)






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






8. What is chief ingredient in living things?






9. Energy in motion






10. Particles are mixed but not dissolved






11. 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 ...






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






13. Absorbs heat; endo - within






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






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






16. The living content in a cell






17. The ability to do work






18. 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






19. The putting together of living things






20. 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)






21. Smallest unit of an element






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






23. Gives off heat; exo - outside






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






25. Dissolved






26. 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






27. The increase in randomness and loss of usable energy






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






29. Matter is composed of ______






30. Process of making two DNA molecules from one strand






31. Proteins only one that are...






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






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






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






35. 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






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






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






38. Many sugars; complex carbs






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






40. Stored energy