Define and describe the role of up-regulation and down-regulation of proteins.

What will be an ideal response?


These terms refer to the net change in the amount of a functional protein present in a cell in response to a signal. Up-regulation is an increase in the amount of the protein, whereas down-regulation is a decrease.

Anatomy & Physiology

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The motor neurons associated with intrafusal muscle fibers are referred to as ________ motor neurons.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

A change in a membrane potential from +30 mV to -70 mV is an example of

a. depolarization b. hyperpolarization c. polarization d. repolarization e. zero potential

Anatomy & Physiology

The thoracic cavity contains the heart and lungs.?

Indicate whether the statement is true or false

Anatomy & Physiology

In a normal ECG, the deflection that is generated by ventricular repolarization is called the ________.

A. QRS wave B. R wave C. S wave D. P wave E. T wave

Anatomy & Physiology