Lysosomes break down and recycle worn out cells.
Answer: Option B
Explanation:
The glucose is the basic unit of energy. It is absorbed by the cells of the body. The glucose that is taken inside the body by the means of food is utilized to gain energy.
The glucose that is absorbed from the food moves to interstitial spaces before going inside the cell.
100% of the glucose is transferred from the interstitial spaces of the cell to the inside of the cell.
This is because more amount of the glucose is still outside the cell as it is absorbed completely.
When a small populations' gene frequencies are changed drastically by chance alone it is called a genetic drift
Answer:
"As a molecule moves through the plasma membrane it passes through <em>a hydrophilic layer of phospholipid heads then a hydrophobic layer of phospholipid tails and then another hydrophilic layer of phospholipid heads".</em>
Explanation:
Biological membranes are formed by two lipidic layers, proteins, and glucans.
Lipids characterize for being amphipathic molecules, which means that they have both a hydrophilic portion and a hydrophobic portion at the same time. These molecules have a lipidic head that corresponds to a negatively charged phosphate group, which is the polar and hydrophilic portion. They also have two lipidic tails that correspond to the hydrocarbon chains -the apolar and hydrophobic portion- of the fatty acids that esterify glycerol.
Membrane lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, while their hydrophobic tails are against each other, constituting the internal part of the membrane.
Through this lipidic bilayer, some molecules can move from one side of the cell to the other, which happens because of concentration differences. When this occurs, molecules must pass through the hydrophilic layer of phospholipid heads then through the hydrophobic layer of phospholipid tails and then again through another hydrophilic layer of phospholipid heads.
Answer:
Gastritis or also celiac disease
Explanation:
