You have discovered a previously unidentified plant, and you cultivate it in your lab

You notice that its flowers close when people are talking, yet are open when the lab is relatively quiet. You suspect that this plant may have the ability to hear! Which of the following hypotheses is (are) the most reasonable to explain this phenomenon?
I) There is a cell-surface protein on the epidermal cells that becomes phosphorylated in response to vibration by sound waves.
II) There are tiny hairs on epidermal cells that bend in response to the vibration of sound waves, triggering an action potential in epidermal cells.
III) There is a cell-surface receptor on root cells that becomes phosphorylated when the soil vibrates in response to sound waves.
A) only I
B) only II
C) only III
D) only II and III
E) I, II, and III


Answer: E

Biology & Microbiology

You might also like to view...

In the Hardy-Weinberg equation, p and q are _____.  

A.  genotypes B.  mutation rates C.  phenotypes D.  allele frequencies E.  measures of fitness

Biology & Microbiology

Experiments designed by ______________ suggested that living cells caused the fermentation of sugar to produce alcohol

A. Pasteur B. Koch C. Wohler D. Fleming

Biology & Microbiology

Courts allow patenting complementary DNA (cDNA) because

A) its exact sequence is not in the genome of an organism. B) it cannot be synthesized in a laboratory. C) it is present only in adult humans. D) it represents only the introns of a gene.

Biology & Microbiology

________ muscle constricts arteries when blood pressure drops suddenly

A) Smooth B) Striated C) Cardiac

Biology & Microbiology