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Test your basic knowledge |
CLEP Biology: Basic Chemistry
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Study First
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. Gives off heat; exo - outside
Endothermic reaction
Elements
Exothermic reaction
RNA
2. Dissolver (water: universal solvent)
Solvent
Glycogen
Polysaccharides
Starch
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
Kinetic energy
Endothermic reaction
Elements
Proteins
4. The putting together of living things
Monosaccharides
Biosynthesis is
Endothermic reaction
Second law of thermodynamics
5. Can change between gel and sol phases (ex. protoplasm)
Glycogen
Enzymatic
Reversible colloid
Protoplasm
6. Absorbs heat; endo - within
DNA
Biosynthesis is
Endothermic reaction
Monosaccharides
7. Particles are mixed but not dissolved
Reversible colloid
Carbon - hydrogen - oxygen - nitrogen - calcium
Suspension
Solute
8. 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)
Cellulose
Endothermic reaction
Glycogen
Carbohydrates
9. Smallest unit of an element
Polysaccharides
Atom
Structure of DNA
Nonreversible colloid
10. Stored energy
Elements
Polysaccharides
Potential energy
Carbon
11. The increase in randomness and loss of usable energy
Enzymatic
DNA
Glycogen
Entropy
12. Energy in motion
Energy is
Exothermic reaction
Kinetic energy
Reversible colloid
13. Single sugars; glucose(C6H12O6) is a monosaccharide that is manufactured by plants in photosynthesis
First law of thermodynam ics
Monosaccharides
DNA replication
Fatty acids
14. Polysaccharide; animal starch (animals and humans eat starches abd break them down to monosaccharides; the liver converts them to glycogen for storage)
DNA
Glycogen
Nonreversible colloid
Energy is
15. Cannot change between gel and sol (ex. egg whites)
Proteins
DNA
Protoplasm
Nonreversible colloid
16. 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
Hydrolosys in disaccharides
Atom
Protoplasm
Colloid
17. Proteins only one that are...
Colloid
Enzymatic
Cellulose
Carbon
18. The living content in a cell
Fatty acids
First law of thermodynam ics
Energy is
Protoplasm
19. 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
Osmosis is
Fatty acids
Endothermic reaction
Exothermic reaction
20. Many sugars; complex carbs
Kinetic energy
Cellulose
Endothermic reaction
Polysaccharides
21. 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
Lipids are
Structure of DNA
Glycogen
Chitin
22. Another nucleic acid; single strand; sometime replaces thymine
RNA
Energy is
Proteins
Solvent
23. Found in nucleus of cell; contain info necessary for the manufacture of an organism's proteins; nucleic acid form genes; watson and crick discovered
DNA
Hydrolosys in disaccharides
Protoplasm
Atom
24. Is a polysaccharide; stored by plants; a major energy source for humans; humans can't make it
Polysaccharides
Starch
Endothermic reaction
Kinetic energy
25. Dissolved
Monosaccharides
Colloid
Solute
DNA replication
26. Mixture of fine particles that do not settle out quickly (ex. protoplasm)
Colloid
RNA
Catalysts
Suspension
27. In any process - energy is neither created nor destroyed
First law of thermodynam ics
Exothermic reaction
Monosaccharides
Structure of DNA
28. Affect the rate of the reaction but are not changed in the reaction
Second law of thermodynamics
Carbon - hydrogen - oxygen - nitrogen - calcium
Suspension
Catalysts
29. Matter is composed of ______
Elements
Disaccharides
Starch
Nonreversible colloid
30. Homogenous(alike) mixture of one or more substances in another substance
Carbon - hydrogen - oxygen - nitrogen - calcium
Energy is
Solution
Structure of DNA
31. The ability to do work
Solvent
Disaccharides
Cellulose
Energy is
32. What is chief ingredient in living things?
Catalysts
Carbon
Fatty acids
Solution
33. Polysaccharide; strong and flexible; makes up shells of crabs - lobsters - shrimp - insects; found in cell walls of fungi
Entropy
RNA
Chitin
Nonreversible colloid
34. Whenever energy is used - some of the energy is wasted
Hydrolosys in disaccharides
Enzymatic
Second law of thermodynamics
Disaccharides
35. The diffusion of water(!!) through a semipermiable membrane; equilibrium is never reached.
Suspension
Fatty acids
Osmosis is
Carbohydrates
36. Process of making two DNA molecules from one strand
DNA replication
Solvent
Reversible colloid
Chitin
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 ...
Kinetic energy
Fatty acids
Cellulose
Disaccharides
38. Elements essential to life
Biosynthesis is
Solute
DNA replication
Carbon - hydrogen - oxygen - nitrogen - calcium
39. Made of nucleotides; sugar - phosphate - base; adenine - thyOOmine; guani`ne - cytosine
Structure of DNA
Hydrolosys in disaccharides
Osmosis is
Solvent
40. Organic compounds that contain carbon - hydrogen and oxygen; provide structure and store energy
Cellulose
Elements
Carbon - hydrogen - oxygen - nitrogen - calcium
Carbohydrates
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