Exam Practices Flashcards
(30 cards)
what is some evidence of endosymbiosis
chloroplasts have their own genetic sequences that are similar to bacteria
what is frequently used as a synapomorphy to differentiated between difference protists lineages
type of flagella
what term describes the fusion of two fungal cells in which fusion occurs between the cytoplasms but not between the 2 nuclei?
plasmogamy
in land plants, what stage is the result of the conversion of diploid to haploid
spore
the following describes the components of water potential for cells A & B. cell A s = -.45 MPA, p = .25 MPA. Cell B s = -.5 MPA, p = .35 MPA. if these are placed next to each other what direction would water move
from cell B to cell A
water transport from soil to leaves through the plant body requires __
flow through both living and dead cells
how do stomata open and close
they open when K+ moves into the guard cells, causing them to become turgid
what is required at the source end during phloem transport
ATP
what is the best difference between early and more recently evolved land plants?
early land plants have photosynthetic gametophytes
the major challenges for most freshwater fish are
gaining water from an losing ions to the environment
what structure in insects performs the same function as the loop of Henle in the human kidney?
Malpigian tubules
what best describes the action of the hormone ADH on a nephron
ADH causes the collecting duct to increase water reabsorption
if the partial pressure of oxygen outside of a cell is 100 mmHg and the partial pressure of oxygen inside the cell is 25 mmHg how will it move
there will be a net movement of oxygen from outside the cell to inside the cell
the respiratory system of what organisms relies on air sacs to move air through the lungs
birds
How is most carbon dioxide transported from tissues to the lungs
as bicarbonate ions (HCO3-)
what is the function of the left ventricle
it pumps oxygenated blood around the body
what animal does oxygenated and deoxygenated blood mix in the heart
a frog
blood following its normal path from the right atrium to the left atrium would pass through how many sets of capillaries
the neurotoxin curare blocks acetylcholine receptors. what process would be inhibited by curare.
muscle contractions
the activation of the parasympathetic brach of the autonomic nervous system is associated with
resting and digesting
damage to the temporal lobe would result in an impaired ability to
comprehend language
how much more space does a 3’ consumer need to create as much biomass as a 1’ consumer
100 times more
if you observe more Pfr in lettuce seed cell membranes, has the seed most recently been exposed to which kind of light?
red
a plant that is unable to produce jasmonic acid would be deficient in its ability to respond to
