Epithelial tissue tends to be richly innervated and highly regenerative. (True or false?)

Epithelial tissue tends to be richly innervated and highly regenerative.

Indicate whether this statement is true or false.

(Question 2) The sodium-potassium pump is continually active while the cell is at a stable resting membrane potential.

Indicate whether this statement is true or false.

(Question 3) When a cell is at its resting membrane potential, more potassium diffuses out than sodium diffiuses in.

Indicate whether this statement is true or false.

(Question 4) The sodium-potassium pump moves both potassium and sodium down their concentration gradients, from higher to lower concentration.

Indicate whether this statement is true or false.

(Question 5) Under normal conditions and when a cell is at rest, there is more potassium in the cytosol than in the extracellular fluid.

Indicate whether this statement is true or false.

(Question 6) To maintain a resting membrane potential, the sodium-potassium pump

A. actively transports 3 sodium ions out of the cell and 2 potassium ions into the cell.

B. passively transports 3 sodium ions out of the cell and 2 potassium ions into the cell.

C. actively transports 3 potassium ions out of the cell and 2 sodium ions into the cell.

D. passively transports 3 potassium ions out of the cell and 2 sodium ions into the cell.

(Question 7) The potential across a cell membrane has changed drastically, from -90mV to +30mV. In other words,

A. there is a positive charge on the inside of the cell, relative to the outside.

B. there is a negative charge on the inside of the cell, relative to the outside.

C. the resting membrane potential has been established.

D. there is no relative charge difference between the inside and the outside of the cell.

(Question 8) The two identical cells that arise from mitosis are called ____________ cells.

Fill in the blank with correct word.

(Question 9) _____________ is the division of the cytoplasm during cell division.

Fill in the blank with correct word.

(Question 10) Neurons have a _______ membrane potential of -70mV. In other words, this is their stable membrane potential under normal conditions.

Fill in the blank with correct word.

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Epithelial tissue tends to be richly innervated and highly regenerative. (True or false?)

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