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2024 BIO 1108 FINAL (HERRICK) EXAM WITH CORRECT ANSWERS
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2024 BIO 1108 FINAL (HERRICK) EXAM WITH CORRECT ANSWERS
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2024 BIO 1108 FINAL(HERRICK) EXAM WITH
CORRECT ANSWERS
Which of the following statements is true of the seeds of both gymnosperms
and angiosperms? - CORRECT ANSWERS-Seeds from both plants contain a
diploid (2n) embryo.
Which of the following statements is true regarding the fruits produced by
angiosperms? - CORRECT ANSWERS-Fruits are typically derived from the wall
of the ovary.
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? -
CORRECT ANSWERS-A virus
You may have heard that monarch butterflies (and their caterpillars) are
"poisonous" to many predators. What makes these insects so toxic? -
CORRECT ANSWERS-Monarch caterpillars store cardenolides from milkweeds
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? - CORRECT ANSWERS-
Without P. ferruginea, the plant won't have any defenses and will be eaten
by herbivores.
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? - CORRECT ANSWERS-A trade-off
Which of the following proteins allow a plant to mount an immune response
against a specific pathogen? Select all the correct choices. - CORRECT
ANSWERS-Resistance (R) proteins in the plant cytoplasm
For the "light" reaction to occur, an electron donor (____) and an ultimate
acceptor (______) are needed. - CORRECT ANSWERS-Water; NADP+
, Which molecule is oxidized in the photosynthetic reaction? - CORRECT
ANSWERS-H2O
In terms of the evolution of photosynthesis, which process happened first? -
CORRECT ANSWERS-Horizontal gene transfer
What is the most abundant protein on Earth? - CORRECT ANSWERS-Rubisco
What is the initial input in the Calvin cycle? - CORRECT ANSWERS-CO2
If the two guard cells of a stoma decrease their concentration of potassium
(K+) ions, what will happen to the corresponding pore? - CORRECT
ANSWERS-The pore will close, allowing the diffusion of water vapor out of the
leaf.
If water molecules (H2O) suddenly stopped forming hydrogen bonds with one
another, how would water transport in vascular plants change (if at all)? -
CORRECT ANSWERS-It would stop, as water transport relies on H2O
molecules being connected by hydrogen bonds.
Which of the following are produced by roots in order to increase surface
area, allowing for greater access to nutrients in the soil? - CORRECT
ANSWERS-Root hairs
In a sunflower population, a mutation arises that results in vessels 4 times
wider than wild-type. The mutants will have _________ water-transport
capacity, but will also be more susceptible to _________. - CORRECT
ANSWERS-Higher; cavitation from freezing
Roots elongate continuously in order to _____________. - CORRECT ANSWERS-
Mine new regions of soil for minerals
Root hairs develop _____. - CORRECT ANSWERS-After the cells elongate
The veins of leaves are _____. - CORRECT ANSWERS-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.
In ferns, both the gametophyte and sporophyte are physiologically capable
of surviving on their own. What is the most likely reason that vascular tissues
are present only in the sporophyte generation? - CORRECT ANSWERS-There
is no advantage for the gametophyte to grow tall because gametes must be
produced near the ground where the water needed for their free-swimming
sperm is most likely to be found.
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