Answer;
-Phospholipids and protein
Explanation;
-The plasma membrane is composed of a phospholipid bilayer arranged back-to-back. It is also covered in places with cholesterol molecules and proteins. The plasma membrane is selectively permeable and regulates which molecules are allowed to enter and exit the cell.
- The membrane is an extremely thin layer of lipids and protein that forms outer boundary of every cell, It controls movement of molecules between the cell and its environment, Participates in joining cells to form tissues and organs and also plays important role in the ability of a cell to respond to changes in the cell's environment.
Answer:
The second arrow (the middle one)
The adrenal glands respond to stress by secreting Epinephrine, and Norepinephrine. Epinephrine causes the blood vessels to narrow, and it also opens up airways in the lungs. Norepinephrine increases the heart rate and blood pressure, and it also causes the energy stores to release glucose.
The answer would be:<span> Dosage may need to be decreased.</span>
Dobutamine is a drug that increases the strength and frequency of heart pump. It is frequently used in ICU to help the patient with a heart problem. While it can help strengthen the heart, high doses might cause arrhythmia which could threaten the patient life. That is why the doses need to be titrated carefully.
