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Which process occurs when cells convert information from an external signal to another form?

A. signal amplification
B. signal dependence
C. signal transduction
D. signal transformation

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Three signaling mechanisms are listed below:I. Endocrine signalingII. Paracrine signalingIII.Autocrine signalingWhich signaling mechanism involves hormones binding to target cells?

A. I
B. I and II
C. II and III
D. I, II, and III

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Which of the following best explains how plasmodesmata function for cell communication?

A. Cells communicate over long distances using hormones.
B. Cells communicate with each other by cell-to-cell contact.
Cells communicate using ligand-ion channels.
D. Cells communicate changing the shape of the protein receptor.

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A student is conducting an investigation about the relationship between photosynthesis and respiration. The student places a small green plant in a sealed container and measures the amount of CO2 and O2 gas in the container. For the first three days of the investigation, the student shines a light on the container and discovers that the O2 concentration increases significantly. Then the student places the container in a dark closet and notices that the O2 concentration decreases but that the CO2 concentration increases. Which of the following best explains why the student notices the change in oxygen concentration when the plant is placed in the dark closet?

A. The plant used the oxygen in the container to perform photosynthesis.
B. The plant production of carbon dioxide displaced the oxygen gas in the container.
C. The plant consumed the oxygen present in the container as a part of performing cell respiration.
D. The student did not seal the container properly so the gas concentrations are unbalanced.

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What was Engelman's reasoning for the bacteria congregating in the regions containing the red and violet light?

A. The levels of CO2 increased in the regions containing red and violet light, and the bacteria were attracted to the CO2.
B. Red and violet light evaporate water at a faster rate so the bacteria traveled to these regions to prevent drowning.
C. Red and violet light absorb more heat than the green, yellow, and orange lights enabling the bacteria to remain warm.
D. Photosynthesis increased levels of O2 in the regions containing red and violet light, and the bacteria were attracted to the O2.

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Which process occurs when cells convert information from an external signal to another form?

A. signal amplification B. signal dependence C. signal transduction D. signal transformation

Three signaling mechanisms are listed below:I. Endocrine signalingII. Paracrine signalingIII.Autocrine signalingWhich signaling mechanism involves hormones binding to target cells?

Which of the following best explains how plasmodesmata function for cell communication?

What was Engelman's reasoning for the bacteria congregating in the regions containing the red and violet light?

A. signal amplification
B. signal dependence
C. signal transduction
D. signal transformation