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