During Penetration of E

question 45

Multiple Choice

During penetration of E. coli by the T4 phage,

• A) lysozyme is used to allow entry of the phage capsid.
• B) the tail acts as a "hypodermic needle," injecting the phage DNA into the cell.
• C) the protein fibers digest a hole in the cell wall.
• D) the bacterial receptor molecules open a hole through the cell wall.
• E) the intact phage enters the host by endocytosis.

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Definitions:

Basilar Membrane

A structure in the cochlea of the ear that plays a key role in the sense of hearing by vibrating in response to sound, thus stimulating hair cells to send nerve impulses to the brain.

Receptor Cells

Specialized cells in the body responsive to particular stimuli like light, sound, or chemicals.

Sound Waves

Vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.

Amplitude

The extent or range of a vibratory movement, measured from the position of equilibrium, commonly used to describe the magnitude of sound waves or other oscillations.