Answer:
Please see the explanation.
Explanation:
Req. a)
Greater susceptibility to infections.
In Leukopenia, the amount of white blood cells becomes lower in the bloodstream. A normal white blood cell usually has 3.5k to 11k white blood cells per micro-liter.
But a leukopenia patient might have a lower number of white blood cells than 3.5k to 11k. White blood cells are which fight against unwanted viruses, bacteria, etc. which enters into the human body. Actually, it works as a guard for humans from being affected by various diseases.S So, it's crucial for the human immune system.
When the amount of white blood cells becomes lower, the body will become less prepared to battle against viruses and infections. So if a person becomes affected by leukopenia, he/she will be more susceptible to the disease.
Req. b)
Transport fluid.
The lymphatic system is an arrangement of different tissues and organs. The lymphatic system helps the body to get rid of poisons, garbage, and as well as from other unwanted elements. Inside the body, lymph is carried out by the lymphatic system. Lymph is a liquid that contains infection-fighting white blood cells. The lymphatic system helps to pass this fluid (lymph) throughout the body so that this lymph can help all cells to get rid of unwanted materials.
Answer:
Sodium ions flow passively from high concentration to low concentration.
Explanation:
When a ligand binds to a ligand gated, there's always a flow of ions, in this case we talk about sodium. When the bind is produced, the channel undergoes a conformational change that determines its opening. Remember that the channel, is a protein. In this example we don't talk about a bomb, that's why we suppose that sodium ions are not pumped. As the flow is in favor of gradient, ions always go from high concentration to low.
We say that ions flow PASSIVELY because Ionic channels are sort of passive transport, we don't need ATP.
The answer is the last one
The flexible barrier that protects the inside is the cell membrane
Answer:
The correct answer is two layers of phospholipids,with their polar hydrophilic heads facing away from each other.
Explanation:
The plasma membrane of a cell contain lipid bilayer.Each monolayer contain phospholipids.The hydrophobic tails of the phospholipid of both the monolayers faces each other in the hydrophobic region where as the hydrophilic heads of the phospholipid molecules of both the monolayers are oriented away from each other.