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The Cholesterol Challenge

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Questions and Answers

Which of the following is true about cholesterol?

Cholesterol is derived from plant sources.

Cholesterol is primarily found in plant fats.

Cholesterol is a major structural constituent of cell membranes. (correct)

Cholesterol contains a hydroxyl group at C5.

Which of the following is NOT a function of cholesterol?

Precursor of steroid hormones

Structural component of cell membranes

Present in nervous tissues

Energy storage (correct)

What is the chemical formula of cholesterol?

C27H46OH

C27H45OH

C27H46O (correct)

C27H46O2

Where is cholesterol primarily distributed in the body?

Nervous tissues Signup and view all the answers

What is the precursor of steroid hormones?

Cholesterol Signup and view all the answers

What causes bending of the hair cells in response to gravity?

Otoliths Signup and view all the answers

Motion sickness is primarily a result of discordance between which two sensory inputs?

Vestibular and visual stimulation Signup and view all the answers

Which type of hearing loss is usually conductive and related to injuries in the external or middle ear?

Conductive hearing loss Signup and view all the answers

Tinnitus is most likely to occur due to lesions in which auditory pathway?

Peripheral or central auditory pathways Signup and view all the answers

Cholesteatomas are characterized by the abnormal growth of skin and debris in which area of the ear?

Middle ear Signup and view all the answers

Meniere syndrome is related to blockage of which anatomical structure in the ear?

Cochlear aqueduct Signup and view all the answers

Which type of hearing loss results from defects in the cochlea or its associated structures?

Sensorineural hearing loss Signup and view all the answers