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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. The putting together of living things






3. 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






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






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






6. Matter is composed of ______






7. Proteins only one that are...






8. Process of making two DNA molecules from one strand






9. Stored energy






10. 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 ...






11. Absorbs heat; endo - within






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






13. The living content in a cell






14. The ability to do work






15. Gives off heat; exo - outside






16. Dissolved






17. Elements essential to life






18. Energy in motion






19. Particles are mixed but not dissolved






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






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






22. Many sugars; complex carbs






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






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






25. 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






26. 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






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






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






29. 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)






30. The increase in randomness and loss of usable energy






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






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






33. What is chief ingredient in living things?






34. 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






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






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






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






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






39. Dissolver (water: universal solvent)






40. Smallest unit of an element