Noncommunicable diseases are diseases that last a long period of time and have slower progression than other sicknesses such as a cold, fever, etc. The most common Noncommunicable diseases for example are, Heart Attack, Stroke, Cancer, diabetes, CHD, and asthma.
Answer:
The correct answer is - to protect the cells of these secretory glands from pepsin.
Explanation:
Pepsinogen is an inactive form of enzyme pepsin that is released by specific cells called chief cells within the gastric lining Releasing the inactive form of pepsin in preventing the auto-digestion of protective proteins and the cells of these secretory glands in the lining of the digestive tract.
Pepsinogen is activated by acidic pH to pepsin of the stomach lumen and the cell lining of the stomach is protected by mucus lining.
Lysosomes digest excess or worn out cell parts
Both mitosis and meiosis are a cell division process having various similarities and differences.
Similarities between the process of mitosis and meiosis include:
- Both the processes are cell division process.
- Both the processes occur in the nucleus of a cell.
- Both the processes result in the formation of daughter cells.
- The main phases are the same in both the processes
The differences between mitosis and meiosis include:
- As a result of mitosis, two daughter cells are formed. As a result of meiosis, four daughter cells are formed.
- The process of mitosis occurs in somatic cells whereas the process of meiosis occurs in reproductive cells.
- The daughter cells formed as a result of mitosis are the exact copies of parent cell. In the process of meiosis, genetic recombination occurs and hence the daughter cells are not exact copies of parent cells.
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<span>Scientists found that the cytoplasm of cells undergoing mitosis, if injected into cells at other stages of the cell cycle, could induce the non-dividing cells to start mitosis. This suggested that a chemical signal was present in the cytoplasm of dividing cells that was responsible for "telling" the cells that they should proceed into mitosis. By fractionating the cytoplasm into its components, scientists were able to isolate the signal that triggers mitosis.</span>
