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CBSE Class9 Science Fundamental Unit of Life Practice Paper




Question 1. Fill in the blanks: (10)
  • Transporting channel of the cell is……………….
  • Chromosomes are made up of …………….. and……..
  • The infolding of mitochondria is known as …………….
  • Storage sac of the cell is…………………..
  • Non-membranous organelle of cell is…………….
  • Smallest cell in human is………………..
  • …………………….is the full form of DNA.
  • ATP stands for…………………..
  • Cells which change their shapes are……………. and……………….
  • Largest cell in the world is…………………
Question 2. Differentiate between: (10)
  • Osmosis and diffusion
  • Prokaryotic cell and eukaryotic cell
  • plasma membrane and cell wall
  • plant cell and animal cell
Question 3. Give the structure and functions of following: (10)
  • Endoplasmic reticulum
  • Mitochondria
  • Centrosome
  • Golgi bodies

Question 4. How do substance like CO2 and water move in and out of the cell? (3)
Question 5. What is nucleus? Describe it parts and functions?  (3)
Question 6. What happen? (4)
  • If Dry apricot placed in pure water?
  • Plasma membrane get ruptures or breakdown?
Question 7. Why lysosomes are called suicidal bag of the cell? (2)
Question 8. Draw a labeled diagram of animal cell? (3)
 
 

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