What is a signaling molecule that is produced in tiny amounts by one part of an organisms body, and is transported to other parts, where it binds to a specific receptor and triggers repsonses in target cells and tissues.
100
Are plant hormones produced in low or high concentrations?
What is low concentration.
100
What are the two main light colors that are the most
important in regulating a plant’s
photomorphogenesis?
What is red and blue light.
100
Are plants mobile or immobile?
What is immobile.
100
What do plants interact with?
What is many other species in their community.
200
Define etiolation.
What is morphological adaptations for
growth in darkness; allows for energy to not be
wasted.
200
What do some hormones meditate?
What is shorter-term physiological responses to environmental stimuli.
200
What are the three things plants can detect?
What is plants can detect direction, intensity,
wavelength (color) of light.
200
How can plants detect gravity?
What is the settling of statoliths.
200
What are pathogens against which a plant has
little defense.
What is virulent?
300
Define second messenger.
What is small molecules and ions
in the cell that amplify the signal and transfer
from the receptor to other proteins that carry
out the response.
300
What do molecules in plants function as?
What is defense against pathogens.
300
Give an example of day neutral plants?
What is tomatoes, rice, and dandelion.
300
When does gravitropism occur?
What is as soon as a seed germinates.
300
Give an example of a plants physical defense against herbivores.
What is thorns.
400
What is the action spectrum?
What is the relative effectiveness of
different wavelengths of radiation in driving a
particular process
400
What do plant hormones control?
What is plant development and growth.
400
What initiates a phototropism, light-induced opening
on stomata, and light-induced slowing of
elongation?
What is blue-light photo receptors.
400
What is directional growth in response
to touch?
What is thigmotropism.
400
Give an example of a plants chemical defense against herbivores.
What is toxic compounds.
500
Compare and contrast tropism and phototropism.
What is Tropism is any growth response that results in
plant organs curving toward or away from
stimuli. Phototropism is the growth of shoot toward
(positive) or away (negative) from light.
500
What are the six hormones?
What is Auxin, Cytokinins, Gidberellnis, Brassinosteroids, Abscisic Acid and Ethylene.
500
What is the interactions between phytochrome and the
biological clock enable the plants to measure
the passage of night and day, allowing them to
adjust activities in synchrony with seasons
What is the effect of light on the Biological Clock.
500
Identify the five environmental stresses.
What is drought, flooding, salt, heat and cold.
500
Compare and contrast virulent with avirulent.
What is virulents are pathogens against which a plant has
little defense; exemption and uncommon. Avirulents are strains of pathogens that only mildly
harm, but do not kill the host plant.