The cylinders in this experiment represent a 24-hour period. The light area represents light periods during a 24-hr. period and the dark area represents dark periods during a 24-hr. period. The critical length of dark vs. light periods for flowering is depicted by the dotted line. Note that some plants are flowering and some are not flowering. Study the results of this experiment on photoperiodism and flowering to determine whether the following statements are true or false.
-Went's experiment in 1926 with oat coleoptiles showed that agar that absorbed auxin from the tips would cause a tipless shoot to curve away from the side where he had placed the agar,suggesting that auxin causes cells to elongate.
Definitions:
Summary Measures
Quantitative data that provide a statistical overview of a set of observations or measurements.
MIN(range)
Refers to the smallest value in a given range of data.
Smallest Value
The minimum value within a set of numbers or measurements.
SUM(range)
A mathematical function that adds together all numbers in a specified range.
Q5: Phytoremediation is the use of a plant's
Q8: Mycorrhizae are a mutualistic relationship between fungi
Q9: Earthworms possess both male and female organs
Q16: Which organelles serve as the energy centers
Q21: Which of the following has a four-chambered
Q23: An asexual spore produced by a sac
Q26: Invasive fungi have caused ecological disasters in
Q37: List the eight key components of the
Q46: The first plants to colonize land were
Q53: A Gram-negative bacteria will have a peptidoglycan