Q15. ASSERTION (A): Amoeba is a unicellular organism that keeps changing shapes.
REASON (R): The change in the shape is due to the pseudopodia.
Both assertion and reason are true, and reason is the correct explanation of assertion.
b. Both assertion and reason are true but reason is not correct explanation.
C.
Assertion is true but reason is false.
d. Both assertion and reason are false.
Answers
Answer:
Option A: Both Assertion and reason are true, and reason is the correct explanation of assertion
Answer:
The Correct Answer would be a. Both assertion and reason are true, and reason is the correct explanation of assertion. Amoeba don't have any regular shape and form and it is due to the fake projections that are made while it moves, called as pseudopodia.
Explanation:
The motion of amoeba is called amoeboid motion and is a kind of crawling motion. The amoeboid motion also are utilized by a few sorts of cells and unicellular organisms that don't have any set systems for mobility i.e. amoeboid motion may be implemented to people with no set feet, fins, or wings and is concerned withinside the formation of pseudopodia and posterior uropod.
The technique of amoeboid motion operates via way of means of utilising the cytoplasmic flow, or the pressure of the quantity of fluid internal of the cell. This serves to drag the cell withinside the ahead direction. Since the mobileular locomotory organ is its own, it basically forms pseudopodia. The term pseudopodia means fake feet.
In order to supply the pseudopodia or little fake feet, the cytoplasm of the cell is going through the diverse biochemical modifications. The biochemical modifications are because of alteration of the viscosity or thickness of the fluid inside special regions of the cell. So, it is able to be stated that amoeboid motion is like rhythmic interactions which takes vicinity among the viscosity or thickness of the cytoplasmic fluid in special regions of the cell.