Answer:
true
Explanation:
The centrosome is a cellular organelle which is the main microtubule organizing centre in an animal cell which also regulates the process of cell-cycle.
They are made up of two centrioles which are right angled to each other and is composed of a protein known as tubulin.
So the statement is true.
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Answer:
Gregor Mendel
Explanation:
He did not study the structure of DNA.
B muscle cells because lactic acid is what makes your muscles sore when there isn’t enough oxygen
Answer:
The bacterium Vibrio cholerae is the primary cause of cholera disease that mainly infects the small intestine and primarily leads to the dehydration of the body.
Explanation:
The genetic analysis reveals that the aforementioned causative bacteria surpass the acidic conditions of the stomach and eventually reaches the intestinal wall and attaches to it. This is followed by the production of toxic protein by the bacterium. This protein is taken inside the cell via receptor mediated endocytosis followed by its binding to the host protein Arf6. This binding leads to the production of cAMP that results in the dehydration process. This mechanism leads to excessive accumulation of chloride ion in the intestine preventing the entry of sodium ion.
These two ions are associated with the creation of water-salt environment in the intestine that leads to tremendous diarrhea via the process of osmosis.
Hence, we can say that cholera bacterium affects the individuals at the cellular level and osmosis plays a vital role in the process.