Why Can't the Large, Negatively Charged Intracellular Proteins (A-) Permeate

question 42

Multiple Choice

Why can't the large, negatively charged intracellular proteins (A-) permeate the cell membrane

• A)They are greater than 0.8 nm in diameter and are not lipid soluble.
• B)There are carriers for them.
• C)No concentration or electrical gradient exists for them.
• D)There are no positively charged ions to carry them.

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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.