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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. 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






2. Dissolved






3. Energy in motion






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






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






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






7. Particles are mixed but not dissolved






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






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






10. 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






11. Process of making two DNA molecules from one strand






12. Matter is composed of ______






13. Smallest unit of an element






14. The living content in a cell






15. 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






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






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






18. Elements essential to life






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






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






21. 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






22. The putting together of living things






23. The ability to do work






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






25. Gives off heat; exo - outside






26. Absorbs heat; endo - within






27. Many sugars; complex carbs






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






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






30. Dissolver (water: universal solvent)






31. 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)






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






33. What is chief ingredient in living things?






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






35. Stored energy






36. The increase in randomness and loss of usable energy






37. 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 ...






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






39. Proteins only one that are...






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