,DOWNLOAD THE Test Bank for Exploring Biology in the Laboratory 3rd
Edition Pendarvis
Chapter1TheStartingPoint:UnderstandingtheScientificMethod
n n n n n n n n
1. Shortanswer:Describecharacteristics and theroleof different membersofthe termite
n n n n n n n n n n n n
society.
n
ANS:
The vast majority of members in a termite colony are wingless, sterile, and blind workers. They are
n n n n n n n n n n n n n n n n
milky white in color and possess hard-chewing mouth parts. Workers look after the eggs and
n n n n n n n n n n n n n n n
nymphs, feed the soldiers and reproductive forms, build and maintain the colony, and forage for
n n n n n n n n n n n n n n n
food. The workers are responsible for the telltale signs of termite damage. Soldiers are also
n n n n n n n n n n n n n n n
wingless, sterile, and blind. This caste has a milky-white body with ayellowish-brown head and
n n n n n n n n n n n n n n n
prominentmandibles.Soldiersdefend thecolony, mostly from ants. The reproductives, also
n n n n n n n n n n n n
called the royal caste, consist of the king and queen.
n n n n n n n n n n
Their only function is to reproduce. The royal caste is dark brown in color and has functional eyes.
n n n n n n n n n n n n n n n n n
The queen seems to be striped because the segments of her abdomen are distended.Swarming
n n n n n n n n n n n n n n n
termitesarecalled alatesor swarmers.They arewingedreproductives that eventually establish
n n n n n n n n n n n n n
new nests.
n n
PTS: 1 REF: Ex.1.1CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
2. Shortanswer:Termitesusepheromonesforcommunication.Giveseveralalternate
n n n n n n n n n
examples for the use of pheromones.
n n n n n n
ANS:
Specificpheromones are usedinmating, producing analarm,keeping nymphs fromforming
n n n n n n n n n n n n
reproductive castes, and establishing a trail. Termites use the trail hormones when they are
n n n n n n n n n n n n n n
attempting to lure other termites to follow them to a food source or other region of interest.
n n n n n n n n n n n n n n n n n
PTS: 1 REF: Ex.1.1CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
3. Short answer: Restate your hypothesis. Was your hypothesis rejected or accepted? Why?
n n n n n n n n n n n
ANS:
Thisanswer will vary. The majority of studentswill state, “Asthetemperaturedecreases, the
n n n n n n n n n n n n n n
breathing rate of goldfish will decrease.”
n n n n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
4. Short answer: Discusshowyourgroup’sresults compared with theresults of theentire class.
n n n n n n n n n n n n n n
ANS:
This answer will vary.
n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
mynursytest.store
,DOWNLOAD THE Test Bank for Exploring Biology in the Laboratory 3rd
Edition Pendarvis
5. Short answer: Discuss how thethemeof thegoldfish experiment can apply to thenatural world
n n n n n n n n n n n n n n n
and the care of aquatic animals.
n n n n n n
ANS:
Thebasic scheme could beapplied to how fish respond to changes of temperaturein the natural
n n n n n n n n n n n n n n n n
world. It could also be applied to the transport of goldfish from distributors.
n n n n n n n n n n n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
6. Short answer: List some possible sources of error in this experiment.
n n n n n n n n n n
ANS:
Misreadingthethermometer, not accurately counting thegoldfishbreaths, and notallowing
n n n n n n n n n n n
sufficient time between trials.
n n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
7. Defineosmosis. n
a. Thediffusionof wateracrossasemipermeable membranefrom regionsoflesser
n n n n n n n n n n n
concentration to regions of greater concentration.
n n n n n n
b. Thediffusionof wateracrossasemipermeable membranefrom regionsofgreater
n n n n n n n n n n n
concentration to regions of lesser concentration.
n n n n n n
c. Therandom movement of molecules from regions of greaterconcentration to
n n n n n n n n n n
regions of lesser concentration.
n n n n
d. Theprocess by which carrierproteins carry specificmolecules acrossthecell
n n n n n n n n n n n
membrane. n
e. Theprocess by whichhydrostaticpressure forces molecules throughacell
n n n n n n n n n n
membrane. n
ANS: B PTS: 1 n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
8. Fill in the blank: In a typical solution, the
n n n n n n n n n is the dissolving medium and the
n n n n n n
is the substance dissolved.
n n n n
To receive points, you must separate your answers with a commaand aspace(e.g., first answer,
n n n n n n n n n n n n n n n n
second answer).
n n
ANS: solvent, solute n n n
PTS: 1 REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
9. Define isotonic solution. n n
a. There is a higher concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
b. Theamount of solute in thegummy bear is equal to theamount of solute in the
n n n n n n n n n n n n n n n n
solution. n
mynursytest.store
, DOWNLOAD THE Test Bank for Exploring Biology in the Laboratory 3rd
Edition Pendarvis
c. There is a lower concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
d. None of the above. n n n
ANS: B PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
10. Define hypotonic solution.n n
a. There is a higher concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
b. Theamount of solute in thegummy bear is equal to theamount of solute in the
n n n n n n n n n n n n n n n n
solution.
n
c. There is a lower concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
d. None of the above. n n n
ANS: C PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
11. Define hypertonic solution.
n n
a. There is a higher concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
b. Theamount of solute in thegummy bear is equal to theamount of solute in the
n n n n n n n n n n n n n n n n
solution.
n
c. There is a lower concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
d. None of the above. n n n
ANS: A PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
12. Identify the independent and dependent variables in this activity.
n n n n n n n n
a. Independent variable: changeingummy bear.Dependentvariable: sizeof gummy bear. n n n n n n n n n n n
b. Independentvariable:sizeofgummybear.Dependentvariable:changein gummy bear. n n n n n n n n n n n
c. Independent variable: change in gummy bear. Dependent variable: solution. n n n n n n n n
d. Independent variable: solution. Dependent variable: change in gummy bear. n n n n n n n n
ANS: D PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
13. Which are control variables from this activity? Select all that apply.
n n n n n n n n n n
a. Temperature.
b. Change in gummy bear. n n n
c. Size of gummy bear. n n n
d. Solution.
e. Watersource. n
ANS: A, C, E PTS: 1
n n n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
14. As theresult of theexperiment, was the gummy bear placed in tap waterin an isotonic,
n n n n n n n n n n n n n n n n
hypotonic, or hypertonic solution? How do you know?
n n n n n n n n
a. Isotonic. There were no notable changes. n n n n n
b. It decreased in size and mass.
n n n n n
mynursytest.store
Edition Pendarvis
Chapter1TheStartingPoint:UnderstandingtheScientificMethod
n n n n n n n n
1. Shortanswer:Describecharacteristics and theroleof different membersofthe termite
n n n n n n n n n n n n
society.
n
ANS:
The vast majority of members in a termite colony are wingless, sterile, and blind workers. They are
n n n n n n n n n n n n n n n n
milky white in color and possess hard-chewing mouth parts. Workers look after the eggs and
n n n n n n n n n n n n n n n
nymphs, feed the soldiers and reproductive forms, build and maintain the colony, and forage for
n n n n n n n n n n n n n n n
food. The workers are responsible for the telltale signs of termite damage. Soldiers are also
n n n n n n n n n n n n n n n
wingless, sterile, and blind. This caste has a milky-white body with ayellowish-brown head and
n n n n n n n n n n n n n n n
prominentmandibles.Soldiersdefend thecolony, mostly from ants. The reproductives, also
n n n n n n n n n n n n
called the royal caste, consist of the king and queen.
n n n n n n n n n n
Their only function is to reproduce. The royal caste is dark brown in color and has functional eyes.
n n n n n n n n n n n n n n n n n
The queen seems to be striped because the segments of her abdomen are distended.Swarming
n n n n n n n n n n n n n n n
termitesarecalled alatesor swarmers.They arewingedreproductives that eventually establish
n n n n n n n n n n n n n
new nests.
n n
PTS: 1 REF: Ex.1.1CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
2. Shortanswer:Termitesusepheromonesforcommunication.Giveseveralalternate
n n n n n n n n n
examples for the use of pheromones.
n n n n n n
ANS:
Specificpheromones are usedinmating, producing analarm,keeping nymphs fromforming
n n n n n n n n n n n n
reproductive castes, and establishing a trail. Termites use the trail hormones when they are
n n n n n n n n n n n n n n
attempting to lure other termites to follow them to a food source or other region of interest.
n n n n n n n n n n n n n n n n n
PTS: 1 REF: Ex.1.1CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
3. Short answer: Restate your hypothesis. Was your hypothesis rejected or accepted? Why?
n n n n n n n n n n n
ANS:
Thisanswer will vary. The majority of studentswill state, “Asthetemperaturedecreases, the
n n n n n n n n n n n n n n
breathing rate of goldfish will decrease.”
n n n n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
4. Short answer: Discusshowyourgroup’sresults compared with theresults of theentire class.
n n n n n n n n n n n n n n
ANS:
This answer will vary.
n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
mynursytest.store
,DOWNLOAD THE Test Bank for Exploring Biology in the Laboratory 3rd
Edition Pendarvis
5. Short answer: Discuss how thethemeof thegoldfish experiment can apply to thenatural world
n n n n n n n n n n n n n n n
and the care of aquatic animals.
n n n n n n
ANS:
Thebasic scheme could beapplied to how fish respond to changes of temperaturein the natural
n n n n n n n n n n n n n n n n
world. It could also be applied to the transport of goldfish from distributors.
n n n n n n n n n n n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
6. Short answer: List some possible sources of error in this experiment.
n n n n n n n n n n
ANS:
Misreadingthethermometer, not accurately counting thegoldfishbreaths, and notallowing
n n n n n n n n n n n
sufficient time between trials.
n n n n
PTS: 1 REF: Ex.1.2CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
7. Defineosmosis. n
a. Thediffusionof wateracrossasemipermeable membranefrom regionsoflesser
n n n n n n n n n n n
concentration to regions of greater concentration.
n n n n n n
b. Thediffusionof wateracrossasemipermeable membranefrom regionsofgreater
n n n n n n n n n n n
concentration to regions of lesser concentration.
n n n n n n
c. Therandom movement of molecules from regions of greaterconcentration to
n n n n n n n n n n
regions of lesser concentration.
n n n n
d. Theprocess by which carrierproteins carry specificmolecules acrossthecell
n n n n n n n n n n n
membrane. n
e. Theprocess by whichhydrostaticpressure forces molecules throughacell
n n n n n n n n n n
membrane. n
ANS: B PTS: 1 n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
8. Fill in the blank: In a typical solution, the
n n n n n n n n n is the dissolving medium and the
n n n n n n
is the substance dissolved.
n n n n
To receive points, you must separate your answers with a commaand aspace(e.g., first answer,
n n n n n n n n n n n n n n n n
second answer).
n n
ANS: solvent, solute n n n
PTS: 1 REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
9. Define isotonic solution. n n
a. There is a higher concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
b. Theamount of solute in thegummy bear is equal to theamount of solute in the
n n n n n n n n n n n n n n n n
solution. n
mynursytest.store
, DOWNLOAD THE Test Bank for Exploring Biology in the Laboratory 3rd
Edition Pendarvis
c. There is a lower concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
d. None of the above. n n n
ANS: B PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
10. Define hypotonic solution.n n
a. There is a higher concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
b. Theamount of solute in thegummy bear is equal to theamount of solute in the
n n n n n n n n n n n n n n n n
solution.
n
c. There is a lower concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
d. None of the above. n n n
ANS: C PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
11. Define hypertonic solution.
n n
a. There is a higher concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
b. Theamount of solute in thegummy bear is equal to theamount of solute in the
n n n n n n n n n n n n n n n n
solution.
n
c. There is a lower concentration of solute relative to the inside of the gummy bear.
n n n n n n n n n n n n n n
d. None of the above. n n n
ANS: A PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
12. Identify the independent and dependent variables in this activity.
n n n n n n n n
a. Independent variable: changeingummy bear.Dependentvariable: sizeof gummy bear. n n n n n n n n n n n
b. Independentvariable:sizeofgummybear.Dependentvariable:changein gummy bear. n n n n n n n n n n n
c. Independent variable: change in gummy bear. Dependent variable: solution. n n n n n n n n
d. Independent variable: solution. Dependent variable: change in gummy bear. n n n n n n n n
ANS: D PTS: 1
n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
13. Which are control variables from this activity? Select all that apply.
n n n n n n n n n n
a. Temperature.
b. Change in gummy bear. n n n
c. Size of gummy bear. n n n
d. Solution.
e. Watersource. n
ANS: A, C, E PTS: 1
n n n REF: Ex.1.3CheckYourUnderstanding n n n n
TOP: Chapter 1 Assessment
n n n
14. As theresult of theexperiment, was the gummy bear placed in tap waterin an isotonic,
n n n n n n n n n n n n n n n n
hypotonic, or hypertonic solution? How do you know?
n n n n n n n n
a. Isotonic. There were no notable changes. n n n n n
b. It decreased in size and mass.
n n n n n
mynursytest.store
