Bio116 Exam 4 Questions and Answers
If you were shipping bananas to a supermarket thousands of miles away, which of
the following chemicals would you want to eliminate from the plants' environment? -
ANSWER-ethylene
You are a very inexperienced Emerald Ash Borer-a tree-boring beetle-your parents
have created a diagram of an old woody Ash tree to direct you to the innermost pith
—what is the proper order you encounter the following tissues if you started boring
from the outside through the bark (some layers are skipped for the sake of simplicity,
just put the remaining layers in the correct order) [cork to pith] - ANSWER-cork
cambium, secondary phloem, vascular cambium, secondary xylem
Phototropism in plants is controlled primarily by the hormone _______ that
accumulates on the ______ side of the stem (side facing towards or away from light
source) causing increased growth, thus bending the stem towards the light. -
ANSWER-auxin; dark
Nitrogen is the element most required by plants (by weight); it can be obtained by
plants only by - ANSWER-both fixation of atmospheric nitrogen by bacteria and
decomposition of organic matter
a barred owl is able to raise its young in the center of a living tree because -
ANSWER-the secondary xylem are dead cells and their decay or absence is not
important to the vascular tissue.
We have discussed feedback inhibition throughout the semester with respect to gene
regulation, metabolism, and homeostasis. Which of the following illustrates the
concept of feedback inhibition? - ANSWER-When protein A reaches a certain
concentration, the transcription of the gene for protein A is reduced and/or the
product of the final reaction in that pathway reacts with an enzyme somewhere along
the pathway at the enzyme's allosteric site closing down that pathway and stopping
the final product from synthesizing.
unlike the pine trees accumulating heavy snow, these trees lose their leaves and go
dormant in the winter - ANSWER-deciduous
Parabasalia and Oxymonadid are two lineages of protozoa that are active in
digesting the cell wall of the wood eaten by termites; these cell walls are primarily
made of - ANSWER-cellulose
companion cells would be expected to be most associated with what type of cells? -
ANSWER-sieve tube elements
If you were shipping bananas to a supermarket thousands of miles away, which of
the following chemicals would you want to eliminate from the plants' environment? -
ANSWER-ethylene
You are a very inexperienced Emerald Ash Borer-a tree-boring beetle-your parents
have created a diagram of an old woody Ash tree to direct you to the innermost pith
—what is the proper order you encounter the following tissues if you started boring
from the outside through the bark (some layers are skipped for the sake of simplicity,
just put the remaining layers in the correct order) [cork to pith] - ANSWER-cork
cambium, secondary phloem, vascular cambium, secondary xylem
Phototropism in plants is controlled primarily by the hormone _______ that
accumulates on the ______ side of the stem (side facing towards or away from light
source) causing increased growth, thus bending the stem towards the light. -
ANSWER-auxin; dark
Nitrogen is the element most required by plants (by weight); it can be obtained by
plants only by - ANSWER-both fixation of atmospheric nitrogen by bacteria and
decomposition of organic matter
a barred owl is able to raise its young in the center of a living tree because -
ANSWER-the secondary xylem are dead cells and their decay or absence is not
important to the vascular tissue.
We have discussed feedback inhibition throughout the semester with respect to gene
regulation, metabolism, and homeostasis. Which of the following illustrates the
concept of feedback inhibition? - ANSWER-When protein A reaches a certain
concentration, the transcription of the gene for protein A is reduced and/or the
product of the final reaction in that pathway reacts with an enzyme somewhere along
the pathway at the enzyme's allosteric site closing down that pathway and stopping
the final product from synthesizing.
unlike the pine trees accumulating heavy snow, these trees lose their leaves and go
dormant in the winter - ANSWER-deciduous
Parabasalia and Oxymonadid are two lineages of protozoa that are active in
digesting the cell wall of the wood eaten by termites; these cell walls are primarily
made of - ANSWER-cellulose
companion cells would be expected to be most associated with what type of cells? -
ANSWER-sieve tube elements
