Chap3Practice

"); document.writeln("Name: " + studentName + "
"); document.write("Score: " + numCorrect + " / " + numPossible + " (" + scorePercent + "%)"); if (numSubjective > 0) { document.write(" [" + numSubjective + " subjective "); if (numSubjective == 1) document.write("question"); else document.write("questions"); document.write(" not graded]"); } document.writeln("

"); document.writeln("

" + titleString + "

"); document.writeln(""); currentInstruction = 0; currentNarrative = 0; for (i=0; i < numQuestions; ++i) { if (currentInstruction < numInstructions) { if (instructionIndex[currentInstruction] == i) { document.writeln(""); ++currentInstruction; } } if (currentNarrative < numNarratives) { if (narrativeIndex[currentNarrative] == i) { document.writeln(""); ++currentNarrative; } } document.writeln(""); document.writeln(""); document.writeln(""); document.writeln(""); } document.writeln("

"); document.writeln(instructionText[currentInstruction]); document.writeln("

"); document.writeln("

"); document.writeln(narrativeText[currentNarrative]); document.writeln("

"); document.writeln("

" + prefixText[i] + "

" + numberText[i] + "

" + questionText[i]); document.writeln("

"); document.writeln(""); if (listMap.charAt(i) != "1") { document.writeln(""); document.writeln(""); } document.writeln(""); document.writeln(""); if (showNotes) { document.writeln(""); document.writeln(""); } if (showRef) { document.writeln(""); document.writeln(""); } document.writeln("

RESPONSE:	" + responseText[i] + "
ANSWER:	" + answerText[i] + "
NOTES:	" + notesText[i] + "
REF:	" + refText[i] + "

"); document.writeln("

"); document.writeln("
"); document.writeln(""); document.writeln(""); document.write(""); document.writeln("


"); document.writeln("	"); document.write(""); document.writeln(""); document.writeln("

"); document.writeln(""); document.writeln("

Hosted by www.Geocities.ws

"); document.close(); return(false); } function GetResponse(answerIndex, answer) { var listIndex; var responseText; if (listMap.charAt(answerIndex) == "1") { listIndex = answer.selectedIndex; responseText = answer.options[listIndex].value; } else responseText = StripSpaces(answer.value); return(responseText); } function ScoreAnswer(answerIndex, responseText) { var listIndex; var answerText; answerText = ansMap[answerIndex]; if (qtypeMap.charAt(answerIndex) == "5") return(NumericCompare(responseText, answerText)); else if (qtypeMap.charAt(answerIndex) == "6") return(MultiCompare(responseText, answerText)); else if (responseText.toUpperCase() == answerText.toUpperCase()) return(true); else return(false); } function BuildPrefixText(answerIndex, responseText, isCorrect) { var text; var listIndex; text = "

"
		if (isCorrect)
			text += ""
		else
			text += ""

		if (listMap.charAt(answerIndex) == "1") {
			if (responseText.length == 0)
				responseText = " ";
			text += " " + responseText + " ";
		}

		text += "

" return(text); } function StripSpaces(s) { var len; var i; len = s.length; for (i=len - 1; i >= 0 && s.charAt(i) == " "; --i) len = i; if (len == 0) s = ""; else if (len != s.length) s = s.substring(0, len); return(s); } function TranslateHtmlString(text) { var newText; var replaceString; var position; var length; var breakPos; var skipExtra; var i; newText = ""; position = 0; length = text.length; while (position < length) { skipExtra = 0; breakPos = -1; for (i=position; i < length && breakPos < 0; ++i) { switch(text.charAt(i)) { case '>': replaceString = ">"; breakPos = i; break; case '<': replaceString = "<"; breakPos = i; break; case '&': replaceString = "&"; breakPos = i; break; case '\r': if ((i + 1) < length && text.charAt(i + 1) == '\n') skipExtra = 1; replaceString = "
"; breakPos = i; break; case '\n': replaceString = "
"; breakPos = i; break; case ' ': if ((i + 1 < length) && text.charAt(i + 1) == ' ') { replaceString = " "; breakPos = i; } break; } } if (breakPos < 0) { newText += text.substring(position, length); position = length; } else { if (breakPos > position) newText += text.substring(position, breakPos); newText += replaceString; position = breakPos + 1 + skipExtra; } } return(newText); } function FixMCNotes(notesText, studentText) { var displayText; var searchText; var upperNotes; var charCode; var startIndex; var endIndex; displayText = ""; if (notesText.length > 0) { if (studentText.length > 0) { upperNotes = notesText.toUpperCase(); studentText = studentText.toUpperCase(); charCode = studentText.charCodeAt(0); searchText = "/" + String.fromCharCode(charCode) + "/"; startIndex = upperNotes.indexOf(searchText); if (startIndex >= 0) { startIndex += searchText.length; searchText = "/" + String.fromCharCode(charCode + 1) + "/"; endIndex = upperNotes.indexOf(searchText, startIndex); if (endIndex < startIndex) endIndex = notesText.length; displayText = notesText.substring(startIndex, endIndex); } } if (displayText.length == 0 && notesText.charAt(0) != "http://www.geocities.com/") displayText = notesText; } return(displayText); } function NumericCompare(s1, s2) { var s1Sign; var s2Sign; var tempString; var decimalCount; var decimalPos; var numToDelete; var len; var ch; var i; s1.toUpperCase(); s2.toUpperCase(); if (s1 == s2) return(true); else { s1Sign = 1; s2Sign = 1; tempString = ""; for (i=0; i < s1.length; ++i) { ch = s1.charAt(i); if (ch == "-" && tempString.length == 0) s1Sign = -1; else if ((ch >= "0" && ch <= "9") || ch == ".") tempString += ch; } s1 = tempString; decimalCount = 0; decimalPos = -1; for (i=0; i < s1.length; ++i) { if (s1.charAt(i) == '.') { ++decimalCount; if (decimalPos < 0) decimalPos = i; } } if (decimalCount == 1 && decimalPos >= 0) { len = s1.length; for (i=len - 1; i >= decimalPos; --i) { if (i == decimalPos || s1.charAt(i) == '0') len = i; else break; } if (len < s1.length) s1 = s1.substring(0, len); if (s1.length == 0) s1 = "0"; } numToDelete = 0; for (i=0; i < s1.length; ++i) { if (s1.charAt(i) == "0") ++numToDelete; else break; } if (numToDelete > 0) { if (numToDelete == s1.length) --numToDelete; if (numToDelete > 0) s1 = s1.substring(numToDelete); } ///////////////////////////////////////////// tempString = ""; for (i=0; i < s2.length; ++i) { ch = s2.charAt(i); if (ch == "-" && tempString.length == 0) s2Sign = -1; else if ((ch >= "0" && ch <= "9") || ch == ".") tempString += ch; } s2 = tempString; decimalCount = 0; decimalPos = -1; for (i=0; i < s2.length; ++i) { if (s2.charAt(i) == '.') { ++decimalCount; if (decimalPos < 0) decimalPos = i; } } if (decimalCount == 1 && decimalPos >= 0) { len = s2.length; for (i=len - 1; i >= decimalPos; --i) { if (i == decimalPos || s2.charAt(i) == '0') len = i; else break; } if (len < s2.length) s2 = s2.substring(0, len); if (s2.length == 0) s2 = "0"; } numToDelete = 0; for (i=0; i < s2.length; ++i) { if (s2.charAt(i) == "0") ++numToDelete; else break; } if (numToDelete > 0) { if (numToDelete == s2.length) --numToDelete; if (numToDelete > 0) s2 = s2.substring(numToDelete); } if (s1Sign == s2Sign && s1 == s2) return(true); } return(false); } function MultiCompare(responseText, answerText) { var startIndex; var endIndex; var partialText; responseText = responseText.toUpperCase(); answerText = answerText.toUpperCase(); startIndex = 0; do { endIndex = answerText.indexOf("\r", startIndex); if (endIndex < 0) partialText = answerText.substring(startIndex); else partialText = answerText.substring(startIndex, endIndex); if (responseText == partialText) return(true); startIndex = endIndex + 1; } while (endIndex > 0); return(false); } function FixMTF(f) { var text; var letter; var theList; var listIndex; var number; var i; for (i=0; i < f.length; ++i) { if (f.elements[i].name.indexOf("MTF:") == 0) { number = parseInt(f.elements[i].name.substring(4), 10); theList = f["MTF-" + number + "-1"]; if (theList) { listIndex = theList.selectedIndex; letter = theList.options[listIndex].value; } else letter = ""; text = StripSpaces(f["MTF-" + number + "-2"].value); if (text == "") f.elements[i].value = letter; else f.elements[i].value = letter + "," + text; } } } function AllowReset() { return(window.confirm("Do you want to clear all of your answers?")); } // -->

Name:

Chap3Practice

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

How many electron pairs does carbon share in order to complete its valence shell?

a.	1
b.	2
c.	3
d.	4
e.	8

What type(s) of bond(s) does carbon have a tendency to form?

a.	ionic
b.	hydrogen
c.	covalent
d.	A and B only
e.	A, B, and C

Which of the following is (are) true about the carbon atoms present in all organic molecules?

a.	They were incorporated into organic molecules by plants.
b.	They were processed into sugars through photosynthesis.
c.	They are ultimately derived from carbon dioxide.
d.	Only A and C are correct.
e.	A, B, and C are correct.

What is the reason why hydrocarbons are not soluble in water?

a.	The majority of their bonds are polar covalent carbon to hydrogen linkages.
b.	The majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages.
c.	They are hydrophilic.
d.	They exhibit considerable molecular complexity and diversity.
e.	They are lighter than water.

The two molecules shown in the following figure are best described as

a.	optical isomers.
b.	radioactive isotopes.
c.	structural isomers.
d.	nonradioactive isotopes.
e.	geometric isomers.

Use the figure below to answer the following question.

Observe the structures of glucose and fructose. These two molecules differ in the

a.	number of carbon, hydrogen, and oxygen atoms.
b.	types of carbon, hydrogen, and oxygen atoms.
c.	arrangement of carbon, hydrogen, and oxygen atoms.
d.	number of oxygen atoms joined to carbon atoms by double covalent bonds.
e.	answers A, B, and C

Research suggests that side effects from Ritalin, the drug used to treat attention deficit disorder, may be caused by contamination of enantiomers, or molecules that

a.	have identical three-dimensional shapes.
b.	are mirror images of one another.
c.	lack an asymmetric carbon.
d.	differ in the location of their double bonds.
e.	differ in their electrical charge.

What is the name of the functional group shown in the following figure?

a.	carbonyl
b.	ketone
c.	aldehyde
d.	carboxyl
e.	hydroxyl

Use the figure below to answer the following questions.

Which is a hydroxyl functional group?

a.	Group A
b.	Group B
c.	Group C
d.	Group D
e.	Group E

10.

Which is an amino functional group?

a.	Group A
b.	Group B
c.	Group C
d.	Group D
e.	Group E

11.

Which is a functional group that helps stabilize proteins by forming covalent cross-links within or between protein molecules?

a.	Group A
b.	Group B
c.	Group C
d.	Group D
e.	Group E

12.

Which is an acidic functional group that can dissociate and release H⁺ into a solution?

a.	Group A
b.	Group B
c.	Group C
d.	Group D
e.	Group E

13.

The breakdown of large molecules by the enzymatic addition of water is an example of what kind of reaction?

a.	oxidation
b.	reduction
c.	condensation
d.	hydrolysis
e.	decarboxylation

14.

A condensation reaction typically produces

a.	monomers.
b.	salts.
c.	polymers.
d.	simple sugars.
e.	amino acids.

15.

Which of the following is composed of a 1:2:1 ratio of carbon to hydrogen to oxygen?

a.	carbohydrate
b.	protein
c.	lipid
d.	nucleic acid
e.	steroid

16.

Fructose and glucose are

a.	hexoses.
b.	structurally different.
c.	monosaccharides.
d.	simple sugars.
e.	all of these

17.

Chitin is a polysaccharide with __________ atoms attached to the glucose backbone.

a.	magnesium
b.	phosphorus
c.	potassium
d.	nitrogen
e.	sulfur

18.

Oils are

a.	liquid at room temperatures.
b.	unsaturated fats.
c.	found only in animals.
d.	complex carbohydrates.
e.	both liquid at room temperature and unsaturated fats.

19.

Plasma membranes are characterized by the presence of

a.	triglycerides.
b.	phospholipids.
c.	unsaturated fats.
d.	steroids.
e.	fatty acids.

20.

The interaction of four polypeptide chains in a hemoglobin molecule is __________ structure.

a.	quaternary
b.	secondary
c.	primary
d.	tertiary
e.	quintinery

Hosted by www.Geocities.ws