Bio 1108 Final (Herrick) | UPDATED Questions with 100%
Verified Answers
Q1: A virus
A: A researcher comes across a plant that has been infected by a pathogen. As a result of
the infection, the plant has undergone a systemic acquired resistance (SAR) response
and has also generated several siRNAs. Based on this response, what type of pathogen
most likely infected the plant?
Q2: Monarch caterpillars store cardenolides from milkweeds
A: You may have heard that monarch butterflies (and their caterpillars) are "poisonous" to
many predators. What makes these insects so toxic?
Q3: Without P. ferruginea, the plant won't have any defenses and will be eaten by herbivores.
A: Recall that the bullhorn acacia forms a symbiosis with P. ferruginea ants. A researcher
takes an acacia seed and plants it in an area without P. ferruginea. What will happen to
this acacia plant?
Q4: A tradeoff
A: A seed from a yew tree germinates on the forest floor. During the first few months of its
life, the sapling dedicates most of its resources to increasing in height rather than
producing the defensive compound taxol. What is this allocation of resources an
example of?
Q5: Resistance (R) proteins in the plant cytoplasm
A: Which of the following proteins allow a plant to mount an immune response against a
specific pathogen? Select all the correct choices.
Q6: Water; NADP+
A: For the "light" reaction to occur, an electron donor (____) and an ultimate acceptor (______)
are needed.
Q7: H2O
A: Which molecule is oxidized in the photosynthetic reaction?
Q8: Horizontal gene transfer
A: In terms of the evolution of photosynthesis, which process happened first?
, Q9: Rubisco
A: What is the most abundant protein on Earth?
Q10: CO2
A: What is the initial input in the Calvin cycle?
Q11: The pore will close, allowing the diffusion of water vapor out of the leaf.
A: If the two guard cells of a stoma decrease their concentration of potassium (K+) ions,
what will happen to the corresponding pore?
Q12: It would stop, as water transport relies on H2O molecules being connected by hydrogen bonds.
A: If water molecules (H2O) suddenly stopped forming hydrogen bonds with one another,
how would water transport in vascular plants change (if at all)?
Q13: Root hairs
A: Which of the following are produced by roots in order to increase surface area, allowing
for greater access to nutrients in the soil?
Q14: Higher; cavitation from freezing
A: In a sunflower population, a mutation arises that results in vessels 4 times wider than wild
type. The mutants will have _________ watertransport capacity, but will also be more
susceptible to _________.
Q15: Mine new regions of soil for minerals
A: Roots elongate continuously in order to _____________.
Q16: After the cells elongate
A: Root hairs develop _____.
Q17: Composed of xylem and phloem, continuous with vascular bundles in the stem and roots, and finely
branched to be in close contact with photosynthesizing cells.
A: The veins of leaves are _____.
Verified Answers
Q1: A virus
A: A researcher comes across a plant that has been infected by a pathogen. As a result of
the infection, the plant has undergone a systemic acquired resistance (SAR) response
and has also generated several siRNAs. Based on this response, what type of pathogen
most likely infected the plant?
Q2: Monarch caterpillars store cardenolides from milkweeds
A: You may have heard that monarch butterflies (and their caterpillars) are "poisonous" to
many predators. What makes these insects so toxic?
Q3: Without P. ferruginea, the plant won't have any defenses and will be eaten by herbivores.
A: Recall that the bullhorn acacia forms a symbiosis with P. ferruginea ants. A researcher
takes an acacia seed and plants it in an area without P. ferruginea. What will happen to
this acacia plant?
Q4: A tradeoff
A: A seed from a yew tree germinates on the forest floor. During the first few months of its
life, the sapling dedicates most of its resources to increasing in height rather than
producing the defensive compound taxol. What is this allocation of resources an
example of?
Q5: Resistance (R) proteins in the plant cytoplasm
A: Which of the following proteins allow a plant to mount an immune response against a
specific pathogen? Select all the correct choices.
Q6: Water; NADP+
A: For the "light" reaction to occur, an electron donor (____) and an ultimate acceptor (______)
are needed.
Q7: H2O
A: Which molecule is oxidized in the photosynthetic reaction?
Q8: Horizontal gene transfer
A: In terms of the evolution of photosynthesis, which process happened first?
, Q9: Rubisco
A: What is the most abundant protein on Earth?
Q10: CO2
A: What is the initial input in the Calvin cycle?
Q11: The pore will close, allowing the diffusion of water vapor out of the leaf.
A: If the two guard cells of a stoma decrease their concentration of potassium (K+) ions,
what will happen to the corresponding pore?
Q12: It would stop, as water transport relies on H2O molecules being connected by hydrogen bonds.
A: If water molecules (H2O) suddenly stopped forming hydrogen bonds with one another,
how would water transport in vascular plants change (if at all)?
Q13: Root hairs
A: Which of the following are produced by roots in order to increase surface area, allowing
for greater access to nutrients in the soil?
Q14: Higher; cavitation from freezing
A: In a sunflower population, a mutation arises that results in vessels 4 times wider than wild
type. The mutants will have _________ watertransport capacity, but will also be more
susceptible to _________.
Q15: Mine new regions of soil for minerals
A: Roots elongate continuously in order to _____________.
Q16: After the cells elongate
A: Root hairs develop _____.
Q17: Composed of xylem and phloem, continuous with vascular bundles in the stem and roots, and finely
branched to be in close contact with photosynthesizing cells.
A: The veins of leaves are _____.
