Some Inherited Syndromes,for Example MERRF (Myoclonic Epilepsy with Ragged Red

question 19

Multiple Choice

Some inherited syndromes,for example MERRF (myoclonic epilepsy with ragged red fibers) ,interfere with the function of mitochondria.From what you know about mitochondria,why do you think the muscles and the nervous system are the predominant tissues affected in MERRF?

• A) Mitochondria are the most metabolically active and require the most energy.
• B) Mitochondria have the largest role in digestion.
• C) Mitochondria are only found in these cell types.
• D) Mitochondria have their own DNA and ribosomes.
• E) Mitochondria,similar to chloroplasts,require light energy to function.

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Definitions:

Outer Ear

The external portion of the ear, consisting of the pinna and the ear canal, which collects sound waves and directs them inward.

Basic Scents

Fundamental or primary odors that are universally recognized, such as floral, fruity, woody, and spicy, which form the basis of our sense of smell.

Organ of Corti

A structure located in the cochlea of the inner ear, containing hair cells that act as sensory receptors for sound.

Retina

The light-sensitive layer of tissue at the back of the inner eye, which converts light images into nerve signals sent to the brain.