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