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






2. 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






3. 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






4. Energy in motion






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






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






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






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






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






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






11. The living content in a cell






12. Elements essential to life






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






14. Process of making two DNA molecules from one strand






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






16. The increase in randomness and loss of usable energy






17. Absorbs heat; endo - within






18. Dissolver (water: universal solvent)






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






20. Particles are mixed but not dissolved






21. Many sugars; complex carbs






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






23. Stored energy






24. The putting together of living things






25. Dissolved






26. 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






27. The ability to do work






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






29. Smallest unit of an element






30. What is chief ingredient in living things?






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






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






33. Proteins only one that are...






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






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






36. Gives off heat; exo - outside






37. 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






38. 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 ...






39. 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)






40. Matter is composed of ______