Solve these questions fast please for class 9
Answers
Answer:
1. B
2. A
3.A
4.A
Q-2) Ans. Virus is an exception to cell theory because it is not at all an organism. It is just a foreign entity which contain RNA. As it has no cells and it cannot divide on its own, virus does not hold good to fit under cell theory.
Q-3) Ans.What would happen to the life of a cell, if there was no Golgi apparatus? (A) The secretory activities of the cell will cease. ... In the absence of the Golgi apparatus, lysosomes would not be produced, and the accumulation of dead and damaged organelles and molecules in the cell would ultimately result in cell death
Q-4) Ans.In Amoeba, a cell membrane invagination (pseudopodia) surround the food particle. This is followed by formation of food vacuole surrounding the food by joining of pseudopodia of both sides and engulfment of food vacuole in animal body. Also known as phagosomes, these food vesicles serve as site of food digestion.