The Students Decide That for One of Their Experiments, They

question 61

Multiple Choice

The students decide that for one of their experiments, they want to see whether the organisms can photosynthesize. Which of the following is the best hypothesis?

• A) If the Dinobryon can live > 5 days without added food, they must be able to photosynthesize.
• B) If the Dinobryon can live without exposure to light for > 5 days,they must be able to photosynthesize.
• C) If the Dinobryon photosynthesize, they must need no other minerals or nutrients and will be able to live in distilled water and light alone.
• D) If the Dinobryon are kept in the dark, one-half will be expected to die in 5 days.
• E) If the Dinobryon are able to photosynthesize, the students should be able to extract photosynthetic pigments.

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Definitions:

Depolarization

A decrease in the electrical charge difference across a cell's plasma membrane, often leading to the initiation of an action potential in neurons.

Sodium Ions

Charged particles of sodium (Na+), playing crucial roles in physiological processes such as nerve impulse transmission and muscle contraction.

Axon

An axon is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Neural Impulses

Electrical signals that transmit information along neurons, facilitating communication within the nervous system.