Stem cells<span> are a class of undifferentiated </span>cells<span> that are able to differentiate into specialized </span>cell<span> types. Commonly, </span>stem cells<span> come from two main sources: Embryos formed during the blastocyst phase of embryological development (embryonic </span>stem cells<span>) and. Adult tissue (adult </span>stem cells<span>).
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Answer:
Embedded in a lipid bilayer. (Ans. C)
Explanation:
Fluid mosaic model explains different observations such as the structure of functional cell membranes. According to this model, there is a thin polar membrane composed of a two-layer of lipid molecules called lipid bi-layer or phospholipid bi-layer in which proteins molecules are embedded. This layer provides fluidity and elasticity to the membrane structure.
These membranes form a continuous barrier around all cells and they are a flat sheet in structure. The lipid bilayer is working as a barrier that keeps proteins, ions and other molecules where they are needed to be and preventing diffusing them to other areas. They are impermeable to most hydrophilic molecules. They are particularly impermeable to ions, which allow cells to regulate pH and salt concentration in membrane through the transport ions across their membranes using proteins knows as ion pumps.
Answer:
A glucose dose or injection should be given to produce an increase in blood glucose . Give 10-25 g (20-50 ml of D50W — dextrose 50% in water) of glucose intravenously .
Explanation:
Hypoglycemia is a low blood sugar or glucose in the body below normal which is the main source of energy in the body. It is related to diabetes treatment or can be related to other drugs. Hypoglycemia needs immediate treatment when blood sugar levels are low. For some people, a fast blood sugar of 70 milligrams per deciliter (mg/dL), or 3.9 millimoles per liter (mmol/L), or below should serve as an alert for hypoglycemia. The treatment of this getting your blood sugar to normal level by taking high sugar drinks or medications.
The symptoms include, pale skin, hunger, anxiety, fatigue, sweating e.t.c.
Answer: hemorrhagic
There is two type of stroke, hemorrhagic and ischemic. Ischemic happens when the blood vessel plugged and the brain tissue cannot get blood supply. The plug could be a distance thrombosis or atherosclerosis plaque.
The hemorrhagic stroke happens when the blood vessel damaged, makes the blood flow out into the brain. The blood will push the brain cells and increase the intracranial pressure.
It is responsible for coordinating and controlling many body activities. It stimulates muscle contraction, creates an awareness of the environment, and plays a major role in emotions, memory, and reasoning.
