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