BIO 116 Lab Final Exam Questions and
Answers
What would happen if you only add one primer to your reaction? - ANSWER-it would
be at a much slower pace than when we add two primers.
What is the purpose of the Discussion section of a lab report? - ANSWER-The
purpose of the discussion section of a lab report is to interpret your results and state
whether or not if they support your hypothesis. It's important to explain how your
results relate to previous studies and to discuss the implications of your results. The
discussion section can all suggest improvements on the experimental design for
future studies.
What is the purpose of the Introduction section of a lab report? - ANSWER-The
purpose of the introduction section of a lab report is to provide background
information and context for the study. It's important to explain the hypothesis and/or
question being investigated to show that you understand how your study relates to
the objectives and concepts of the lab and to current scientific research.
You have a small tree in your yard that is the height that you want it, but does not
have as many branches as you want. How can you prune it in order to increase the
number of branches? - ANSWER-Cut off the tips of the main shoots
Which statement BEST describes how plant hormones interact? - ANSWER-The
effect of a specific plant hormone is dependent not only on its concentration in a
particular tissue, but the concentration of other plant hormones in that tissue as well
In commercial greenhouses, plant cuttings are often dipped in a form of ____ to
promote the production of lateral and adventitious roots. - ANSWER-auxin
Why don't seeds released in the fall immediately germinate? High levels of ____
maintain dormancy until the spring. - ANSWER-abscisic acid
Hormones - ANSWER-Chemicals that regulate behavioral or physiological
processes
Where is Auxin (IAA) found? - ANSWER-shoot apical meristems and young leaves
are primary sites. root apical meristems produce some.
Functions of Auxin - ANSWER-stimulates cell elongation (low concentration),
promotes the formation of lateral and adventitious roots, regulates development of
fruits, enhances apical dominance, function in phototropism and gravitropism,
promotes vascular differentiation
, Location of Gibberellins - ANSWER-Meristems of apical buds and roots, young
leaves, and developing seeds
Functions of Gibberellins - ANSWER-stimulates cell elongation, pollen development,
pollen tube growth, fruit growth, seed development and germination, regulate sex
determination and transition from juvenile to adult phase
Location of ethylene - ANSWER-produced by most part of plants
Function of ethylene - ANSWER-promotes ripening of fruit, leaf abscission, triple
response in seedlings, promotes root and root hair formation
What determines protein function? - ANSWER-Structure
What are the six major classes of plant hormones? - ANSWER-Gibberellins, Auxins,
Cytokinins, Abscisic Acid, Brassinosteroids, Ethylene
Experiments designed and performed by which scientists or partnerships below
discovered that chemical signals produced in the tips of grass seedlings were
responsible for phototropic movement? - ANSWER-Charles & Francis Darwin
Auxins in plants are known to affect which of the following processes?
I) gravitropism of shoots
II) maintenance of seed dormancy
III) phototropism of shoots
IV) inhibition of lateral buds
V) apical dominance - ANSWER-only I, III and V
Plant hormones __________ - ANSWER-affect only cells with the appropriate
receptor
Which of the following mechanisms is the correct sequence of events that takes
place during the plant responses to internal and external signals?
A) transduction, reception, and response
B) reception and transduction
C) reception, transduction, and response
D) reception and response - ANSWER-reception, transduction, and response
In the fall, the leaves of some trees change color. This happens because chlorophyll
breaks down and the accessory pigments become visible. What hormone is
responsible for this? - ANSWER-Ethylene
Answers
What would happen if you only add one primer to your reaction? - ANSWER-it would
be at a much slower pace than when we add two primers.
What is the purpose of the Discussion section of a lab report? - ANSWER-The
purpose of the discussion section of a lab report is to interpret your results and state
whether or not if they support your hypothesis. It's important to explain how your
results relate to previous studies and to discuss the implications of your results. The
discussion section can all suggest improvements on the experimental design for
future studies.
What is the purpose of the Introduction section of a lab report? - ANSWER-The
purpose of the introduction section of a lab report is to provide background
information and context for the study. It's important to explain the hypothesis and/or
question being investigated to show that you understand how your study relates to
the objectives and concepts of the lab and to current scientific research.
You have a small tree in your yard that is the height that you want it, but does not
have as many branches as you want. How can you prune it in order to increase the
number of branches? - ANSWER-Cut off the tips of the main shoots
Which statement BEST describes how plant hormones interact? - ANSWER-The
effect of a specific plant hormone is dependent not only on its concentration in a
particular tissue, but the concentration of other plant hormones in that tissue as well
In commercial greenhouses, plant cuttings are often dipped in a form of ____ to
promote the production of lateral and adventitious roots. - ANSWER-auxin
Why don't seeds released in the fall immediately germinate? High levels of ____
maintain dormancy until the spring. - ANSWER-abscisic acid
Hormones - ANSWER-Chemicals that regulate behavioral or physiological
processes
Where is Auxin (IAA) found? - ANSWER-shoot apical meristems and young leaves
are primary sites. root apical meristems produce some.
Functions of Auxin - ANSWER-stimulates cell elongation (low concentration),
promotes the formation of lateral and adventitious roots, regulates development of
fruits, enhances apical dominance, function in phototropism and gravitropism,
promotes vascular differentiation
, Location of Gibberellins - ANSWER-Meristems of apical buds and roots, young
leaves, and developing seeds
Functions of Gibberellins - ANSWER-stimulates cell elongation, pollen development,
pollen tube growth, fruit growth, seed development and germination, regulate sex
determination and transition from juvenile to adult phase
Location of ethylene - ANSWER-produced by most part of plants
Function of ethylene - ANSWER-promotes ripening of fruit, leaf abscission, triple
response in seedlings, promotes root and root hair formation
What determines protein function? - ANSWER-Structure
What are the six major classes of plant hormones? - ANSWER-Gibberellins, Auxins,
Cytokinins, Abscisic Acid, Brassinosteroids, Ethylene
Experiments designed and performed by which scientists or partnerships below
discovered that chemical signals produced in the tips of grass seedlings were
responsible for phototropic movement? - ANSWER-Charles & Francis Darwin
Auxins in plants are known to affect which of the following processes?
I) gravitropism of shoots
II) maintenance of seed dormancy
III) phototropism of shoots
IV) inhibition of lateral buds
V) apical dominance - ANSWER-only I, III and V
Plant hormones __________ - ANSWER-affect only cells with the appropriate
receptor
Which of the following mechanisms is the correct sequence of events that takes
place during the plant responses to internal and external signals?
A) transduction, reception, and response
B) reception and transduction
C) reception, transduction, and response
D) reception and response - ANSWER-reception, transduction, and response
In the fall, the leaves of some trees change color. This happens because chlorophyll
breaks down and the accessory pigments become visible. What hormone is
responsible for this? - ANSWER-Ethylene
