What substances move freely in and out of a cell by diffusion?

A) Electrolytes
B) Enzymes
C) Hormones
D) Proteins


A
Feedback:
Sodium, potassium, calcium, carbonate, oxygen, bicarbonate, and water move freely in and out of cells. These substances move through channels or pores in the cell membrane through movement from a region of higher concentration to a region of lower concentration. Hormones, enzymes, and proteins are considered carriers. If a substance cannot move freely on its own, it may attach itself to another carrier to be diffused.

Nursing

You might also like to view...

The nurse assesses the quality of patient care to be higher in the Total Patient Care model because:

a. Patients are able to perform the majority of their own care. b. Nurses are required to perform less care. c. Nurses are able to focus all of their care on one patient. d. Nurses are hired to care for two patients.

Nursing

After drawing up the shorter-acting dose of an insulin combination, the longer-acting insulin is drawn up until the ________ of the syringe reaches the calibration indicating the total dose. 

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

Nursing

An industrial nurse is planning to give an informative talk on hypertension to employees in honour of Heart Month. He plans to teach individuals how to take their own blood pressure

What information is important for the nurse to obtain from the planning committee before this presentation? a. Specific ages of all of the people involved b. Names of employees who are married c. Number of employees with high blood pressure d. Type of room available and number of participants

Nursing

The distraught wife of a terminally ill patient complains to the nurse, "My husband has not been shaved, and he has that miserable gown on instead of his own pajamas. Don't you people care about things like that?" The nurse's best response would be:

a. "I delayed his morning care because he was sleeping comfortably. I'll complete his care now that he is awake." b. "We are running late today and I have six other patients to care for. What do you want?" c. "Of course we care! Someone will come to do his care before lunch." d. "I'm sorry you feel we are doing such a poor job. I am doing my best."

Nursing