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

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. The putting together of living things

4. Elements essential to life

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

6. Process of making two DNA molecules from one strand

7. 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 ...

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

9. What is chief ingredient in living things?

10. The increase in randomness and loss of usable energy

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

12. Particles are mixed but not dissolved

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

14. 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

15. Energy in motion

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

17. Dissolver (water: universal solvent)

18. The living content in a cell

19. Stored energy

20. Many sugars; complex carbs

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

22. Absorbs heat; endo - within

23. Gives off heat; exo - outside

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

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

26. Smallest unit of an element

27. Proteins only one that are...

28. 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

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

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

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

32. 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

33. The ability to do work

34. 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)

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

36. Dissolved

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

38. Matter is composed of ______

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

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