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