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