Q8. For digestion to occur in a vacuole, the vacuole must first fuse with

1. Nucleus
2. Ribosome
3. Lysosome
4. Golgi body

Q9. The proton gradient between the lysosomal lumen (pH ≈4.5–5.0) and the cytosol (pH ≈7.0) depends on ATP production by the cell. 

1. True
2. False

Q10. What is the function of permanent vacuole? 

1. Supports and protects the cell
2. Controls what enters and leaves the cell
3. Controls the cell
4. Stores water and mineral ions
5. Stores water and mineral ions

Q11. Vacuole is surrounded by membrane called 

1. Tonoplast
2. Chloroplast
3. Plasma membrane

Q18. What are the most abundant components of lysosomal membrane?

Q19. Write the composition and functions of vacuolar membrane.

 

References:

1. Enrico Martinoia, Agnès Massonneau and Nathalie Frangne (2000); Transport Processes of Solutes across the Vacuolar Membrane of Higher Plants, Plant Cell Physiol 41 (11): 1175-1186
2. M. Lodish (2003); Molecular cell biology: Chapter 3 Biomembranes and cell architecture, 5th edition
3. M. Lodish (2007); Molecular cell biology: Chapter 7 Transport of ions and small molecules across cell membranes, 5th edition
4. Paul Saftig  (2005); Lysosomes: Lysosomal membrane proteins