Answer:
The correct answer is A. The cell membrane is both hydrophilic and hydrophobic due to the presence of phospholipid.
Explanation:
98% of the lipids present in cell membranes are amphipathic, that is, they have a hydrophilic end (which has affinity and interacts with water) and a hydrophobic end (which repels water). The three main types of lipids in eukaryotic membranes are phospholipids, sphingoglucolipids and steroids (especially cholesterol); It is worth mentioning that phosphoglycerides and sphingolipids are found in all cells. The latter, glycolipids and steroids, do not exist or are scarce in the plasma membranes of prokaryotic cells, fungi and some protists. There are also neutral fats, which are non-amphipathic lipids, but only represent 2% of the total membrane lipids.
Answer:
Human lung capacity can be measure in several ways. One way is by using a piece of laboratory equipment called a respirometer or spirometer. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. Procedure A: VITAL CAPACITY 1. Blow up the balloon several times to stretch it before beginning to take measurements.
Explanation:
Answer:
Lower right quadrant of the abdomen
Explanation:
The symptoms of appendicitis can be varied but difficult to detect in young children or women of childbearing age.
The first and most noticeable symptom is abdominal pain. This pain begins being vague to progressively become acute and severe. Normally, as the inflammation of the appendix increases, the pain tends to move towards the lower right part of the abdomen to a specific place in the appendix called McBurney's point.
Answer:
Portal circulation is delimited between two large capillary beds at their ends, at one end we find the capillaries of the gastrointestinal organs, pancreas and spleen, and at the other end, the capillary beds of the liver.
