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