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