You Discover an Encapsulated Gram-Positive, Peritrichous, Spore-Forming Bacillus

question 50

Multiple Choice

You discover an encapsulated Gram-positive, peritrichous, spore-forming bacillus. Which of the following describes the organism?

• A) Spherical bacterium with a thin cell wall, a slime layer, and flagella distributed over its surface, that can form endospores for survival of adverse conditions.
• B) Rod-shaped bacterium with a thick cell wall, a capsule, and flagella distributed over its surface, that can form endospores for survival of adverse conditions.
• C) Spherical bacterium with a thick cell wall, a slime layer, and a single flagellum at one side of the cell.
• D) Rod-shaped bacterium with a thin cell wall, a capsule, and single flagellum at one end, that can form endospores for survival in adverse conditions.
• E) Rod-shaped bacterium with a thin cell wall, a slime layer, and single flagellum at one end, that can form endospores for survival in adverse conditions.

Recognize the processes and mechanisms involved in sensory adaptation and signal transduction in sensory systems.

Differentiate between different types of sensory cells and their roles in sensation and perception.

Explain the role of action potentials and receptor potentials in transmitting sensory information to the central nervous system.

Identify the role and mechanism of pheromones in inter-species communication.

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Definitions:

Social Learning

Social learning is a theory that suggests people can learn new behaviors and information by observing others.

Conditioned Stimulus

A formerly neutral signal that, once paired with an unconditioned stimulus, begins to elicit a conditioned reaction.

Unconditioned Stimulus

In classical conditioning, it is a stimulus that naturally and automatically triggers a response without any prior learning.

Conditioned Response

A learned reaction to a previously neutral stimulus that has been repeatedly paired with an unconditioned stimulus causing an automatic response.