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CLEP Biology: Basic Chemistry

Subjects : clep, science, biology
  • Answer 40 questions in 15 minutes.
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  • 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. Gives off heat; exo - outside

2. Dissolver (water: universal solvent)

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

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

5. What is chief ingredient in living things?

6. 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 ...

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

9. Elements essential to life

10. Matter is composed of ______

11. The ability to do work

12. Stored energy

13. The putting together of living things

14. Process of making two DNA molecules from one strand

15. Many sugars; complex carbs

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

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

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

19. Particles are mixed but not dissolved

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

21. 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)

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

23. The increase in randomness and loss of usable energy

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

25. Proteins only one that are...

26. Smallest unit of an element

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

28. Energy in motion

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

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

31. 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

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

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

34. Absorbs heat; endo - within

35. 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

36. 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

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

38. The living content in a cell

39. Dissolved

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