9th Class Biology Chapter 3 TestThe Cell

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Ribosomes are the sites of:

   1. Lipids synthesis 

   2.  Protein synthesis 

   3. Synthesis of sugars

   4.  Synthesis of nucleic acid 

2.  According to fluid mosaic model lipids make a fluid like bilayer in which molecules are submerged:

   1. Carbohydrates 

   2.  Nucleic acid 

   3. Protein

   4. Water

3. The biconcave disk shape of red blood cell is advantageous for:

   1. Oxygen transport

   2. Carbon dioxide storage

   3. Nucleus protection

   4. Muscle contractions

4. What is not true about prokaryotic cells:

   1.  Nuclear material is directly submerged in cytoplasm.

   2.  Plasma membrane lack cholesterol. 

   3.  Plasma membrane have sufficient cholesterol.

   4.  Non- membranous organelles are present.

5. Egg of the ostrich is:

   1. Tissue 

   2. Organ

   3. Cell

   4. None of these

6. Small pores in the nuclear envelope are called:

   1. Nuclear pores

   2. Valves

   3. Plasmodesmata

   4. All of these

7. The membranous structure in th chloroplast is:

   1. Thylakoids

   2. Stroma

   3. Granum

   4. Intergranum

8. When was Golgi apparatus discovered?     

   1. 1789

   2. 1898

   3. 1998

   4. 1768

9. The stacked membranus structure in the chloroplast is:

   1. Thylakoids

   2. Stroma

   3. Granum

   4. Intergranum

10. Which of these are present on the surface of rough endoplasmic reticulum?

    1. Ribosomes

    2. Lysosomes

    3. Mitochondria

    4. Vacuoles