What is Tonoplast??????.......
Answers
Answered by
18
Specific to plant cells is a structure called the tonoplast. The tonoplast is the membrane that surrounds the central or large vacuole of the plant. The tonoplast must work to keep the vacuole acidic by bringing in protons.
Answered by
17
A tonoplast is the membrane that surrounds the large vacuole in a mature plant cell.
The tonoplast is unique to plant cells as animal cells do not have a central vacuole. The tonoplast is a lipid bilayer, typical of other cellular membranes. Recall that a lipid is part of the fats, oils, waxes, etc. group. A bilayer indicates that there are two layers, each with the hydrophillic (water loving) head facing out into the cellular cytosol and the vacuolar cytosol. Cytosol is a liquid component of a cell that surrounds organelles like the vacuole. The hydrophobic (water fearing) tails face inwards.
The tonoplast is unique to plant cells as animal cells do not have a central vacuole. The tonoplast is a lipid bilayer, typical of other cellular membranes. Recall that a lipid is part of the fats, oils, waxes, etc. group. A bilayer indicates that there are two layers, each with the hydrophillic (water loving) head facing out into the cellular cytosol and the vacuolar cytosol. Cytosol is a liquid component of a cell that surrounds organelles like the vacuole. The hydrophobic (water fearing) tails face inwards.
Similar questions