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