Answer:
A) macrophages and monocytes.
Explanation:
Mononuclear phagocytes are an important part of cellular immune defenses. Monocytes (which are a part of mononuclear phagocytic system) are the large mononuclear cells found in red bone marrow and they are actively motile and phagocytic (they ingest bacteria), and develop into macrophages when they move to other tissues.
Macrophages are a type of phagocyte that is responsible for detecting, engulfing and destroying pathogens, they are produced through the differentiation of monocytes
Answer: Option B. "Lysosomes"
Explanation:
Lysosomes are defined as the organelles that act as cell’s recycling center which dispose and digest unwanted carbohydrates, lipids, protein, RNA, and DNA in the cell, one of the major role of lysosomes in the cell.
Lysosome is acidic from inside that contains many enzymes helps in breaking down unwanted molecules. recycling function is initiated by the procsess called autophagy, which allows the cell digests itself due to under stress and when cell undergoes senescence (growth arrest) to preserve energy with the help of enzymes present in it.
In this way the lysosome engulfs external particles and converts it into useful substances like protein, fat and sugar.
Hence, the correct option is B.
Answer:
Which factor is expected to have the greatest impact in the next two decades on the burden of disease? a. Urbanization b. Population aging
Explanation:
Answer:
Reaction formation is an example of a helpful defense mechanism. Reaction formation would be like if you feel angry or frustrated but choose to not play into those feelings but you choose to still maintain a positive attitude. Displacement is an example of a harmful defense mechanism. Displacement would be like if you get into a disagreement or you are upset with one person and you take it out on someone else.
