Practice Worksheet
CBSE Class 9 Science
Topic: The fundamental Unit of Life
Very Short Answer
Q1) What do you mean by osmosis?
Ans: The movement of water molecules through such a selectively permeable membrane is called osmosis.
Q2) Name the autonomous organelles in the cell?
Ans: Chloroplasts and mitochondria are the autonomous organelles in the cells.
Q3) Name the two cells which keep changing their shapes?
Ans: Amoeba and white blood cells are the two which keep changing their shapes.
Q4) What is diffusion?
Ans: When substances like carbon di oxide and oxygen can move across the cell membrane that is known as diffusion.
Q5) Name the smallest and longest cell in the human body?
Ans: The smallest cell is red blood cell and the longest cell is nerve cell in the human body.
Click below to download practice worksheet for CBSE Class 9 Science Fundamental Unit of Life Worksheet Set B