Welcome to the Quiz!
This quiz contains 9 questions from a mix of 1 subtopics.
Which of the following stimuli has NOT been found to trigger action potentials in plants?
sound
touch
physical damage
chemicals
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How do plant action potentials propagate through the plant?
through the xylem
through cell membranes and plasmodesmata
through cell membranes only
through plasmodesmata only
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Compared to animal action potentials, plant action potentials are:
faster and shorter lasting
faster and longer lasting
slower and shorter lasting
slower and longer lasting
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What triggers the mechanical opening of calcium ion channels in the Venus flytrap?
cell tension changes
digestive enzymes
stiff outer hairs
sensory trigger hairs
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The influx of which ion into cells at the base of the sensory hair creates a receptor potential in the Venus flytrap?
calcium
chloride
sodium
potassium
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What do the action potentials in the Venus flytrap NOT lead to?
closure of the trap in response to an insect
opening of the trap in response to an insect
exocytosis of digestive enzymes
changes in cell tension
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How does the Venus flytrap conserve energy and avoid wasteful triggering?
by requiring simultaneous stimulation of multiple sensory hairs
by requiring repeated contact within a short period
by having small gaps between the stiff outer hairs
all of the above
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What is the primary nutrient that the Venus flytrap needs to obtain by trapping and digesting small animals?
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Describe the mechanism by which the Venus flytrap captures and digests its prey.
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