Available Answers

1. 1.

   Fill in the blanks.

   1. _______________ is the living part of the cell.
   2. Nucleus is generally present in the _______________ in animal cells.
   3. _______________ is the largest cell.
   4. Plastids are absent in an _______________.
   5. Cell wall is present in a _______________ cell.
2. 2.

   Tick (√) the correct options.

   1. Which of these is not present in the animal cell
      1. Ribosomes
      2. Lysosomes
      3. Cell wall
      4. Cell membrane
   2. The longest cell among the following is
      1. nerve cell
      2. red blood cell
      3. muscle cell
      4. white blood cell
   3. The cell theory was given by
      1. Issac Newton
      2. Robert Hooke
      3. Anton van Leeuwenhoek
      4. Schleiden and Shwann
   4. Robert Hooke used a _______________ to observe cells.
      1. magnifying glass
      2. compound microscope
      3. spectacle glass
      4. pinhole camera
   5. Which of the following statements is true about a cell?
      1. A single cell cannot exist independently.
      2. A living cell lacks cell organelles.
      3. All cells are same in size.
      4. All cells grow from pre-existing cells.
3. 3.

   Match the columns.

   COLUMN A	COLUMN B
   1. Lysosomes	a. Storage of water and food
   2. Vacuoles	b. Intercellular digestion
   3. Plastids	c. Network inside the cell
   4. Endoplasmic reticulum	d. Permits selected material
   5. Cell membrane	e. Imparts colour to the flowers and leaves

    

4. 4.

   Give two examples of the following.

   1. Cell organelles
   2. Unicellular organisms
   3. Prokaryotic organisms
   4. Multicellular organisms
   5. Types of plastids
5. 5.

   What is a protoplasm?

6. 6.

   What are cell organelles?