We Tend to Think of Plants as Immobile When, in Fact

question 32

Multiple Choice

We tend to think of plants as immobile when, in fact, they can move in many ways. Which of the following is a legitimate way in which plants move?

• A) stretching or shrinking movements up or down in response to light
• B) folding and unfolding of leaves using muscle-like tissues
• C) growth movements toward or away from light
• D) cessation of plant growth in response to wind or touch
• E) rapid responses using action potentials from nervous tissue cells similar to those found in the nervous tissue of animals

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Definitions:

Depolarization

A decrease in the charge difference across a plasma membrane; may result in an action potential in a neuron or muscle cell.

Squid Axon Experiments

Classic scientific experiments conducted to understand the properties of nerve cells by studying the giant axon of squid.

Alan Hodgkin

A British physiologist and biophysicist who, along with Andrew Huxley, elucidated the ionic mechanism underlying nerve impulse transmission, work for which they received the Nobel Prize.

Andrew Huxley

A British physiologist and biophysicist who won the Nobel Prize for Physiology or Medicine in 1963, for his work on the basis of nerve impulse transmission.