Plant Sensory Systems Signals And Responses - Biological Science

A) The receptor is phosphorylated and then changes its shape. This leads to hormone release from the cell, which activates gene transcription.
B) The receptor changes its shape and then becomes phosphorylated. This leads to activation of gene transcription and finally to hormone release from the cell.
C) The receptor is phosphorylated and then changes its shape. This leads to activation of gene transcription and finally to hormone release from the cell.
D) The receptor changes its shape and then becomes phosphorylated. This leads to hormone release from the cell, which activates gene transcription.

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Question 2

(True False)

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\begin{array}{c} \begin{array}{|l|} \hline\\ \text {Plant}\\ \hline \text {A}\\ \hline \\ \\ \text {B}\\ \hline \\ \\ \text {C}\\ \hline \end{array} \begin{array}{lll} \hline \\ \text {Growth Conditions}\\ \hline \text {14 hours of darkness}\\ \hline \text {14 hours of darkness,}\\ \text {interrupted by 10 minutes of }\\ \text {light during the fifth hour }\\ \hline \text {14 hours of light, interrupted }\\ \text {by 10 minutes of darkness}\\ \text { during the fifth hour}\\ \hline \end{array} \begin{array}{|l|} \hline \text {Result Flowers}\\ \text {or no flowers)}\\ \hline \text {No flowers}\\ \hline\\ \\ \text {No flowers}\\ \hline \\ \\ \text {Flowers}\\ \hline \end{array} \end{array}

Table 37.1 -Plant C is a long- day plant." class="answers-bank-image d-block" loading="lazy" >

\begin{array}{c}\begin{array}{|l|}\hline\\\text {Plant}\\ \hline \text {A}\\ \hline \\\\\text {B}\\ \hline \\\\\text {C}\\ \hline\end{array}\begin{array}{lll} \hline \\ \text {Growth Conditions}\\ \hline \text {14 hours of darkness}\\ \hline \text {14 hours of darkness,}\\ \text {interrupted by 10 minutes of }\\ \text {light during the fifth hour }\\ \hline \text {14 hours of light, interrupted }\\ \text {by 10 minutes of darkness}\\ \text { during the fifth hour}\\ \hline \end{array}\begin{array}{|l|} \hline \text {Result Flowers}\\ \text {or no flowers)}\\ \hline \text {No flowers}\\ \hline\\\\ \text {No flowers}\\ \hline \\\\\text {Flowers}\\ \hline \end{array}\end{array}

Table 37.1
-Plant C is a long- day plant.

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Question 3

(Multiple Choice)

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The addition of a phosphate group to a protein is called _ _, and it usually results in .

A) phosphorylation; protein activation or inactivation
B) dephosphorylation; mutation
C) signal transduction; changes in gene transcription
D) oxidation; changes in growth patterns

Answer