Photosynthetic Bacteria Which Do Not Use Water as the Ultimate

question 50

Multiple Choice

Photosynthetic bacteria which do not use water as the ultimate source of electrons

• A) only contain chlorophyll a.
• B) only contain chlorophyll b.
• C) do not produce oxygen.
• D) have two photosystems.
• E) none of these

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Definitions:

James-Lange Theory

A theory of emotion proposing that emotions occur as a result of physiological reactions to events.

Stimuli

External agents or occurrences that provoke a reaction or response from a biological organism.

Asthmatics

are individuals who suffer from asthma, a chronic respiratory condition characterized by episodes of wheezing, coughing, and difficulty breathing.

Cannon-Bard Theory

A theory of emotion that argues that physiological arousal and emotional experience occur simultaneously, yet independently.