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