Vacuole of plant cells is large in size because it has to take part in following activities: 1. It stores salts, sugar, amino acids, organic acids and some proteins. 2. Metabolic wastes of the cell are dumped in the vacuole. 3. Lysosomal enzymes occur in the vacuole of plant cell. 4. The vacuole conRead more
Vacuole of plant cells is large in size because it has to take part in following activities:
1. It stores salts, sugar, amino acids, organic acids and some proteins.
2. Metabolic wastes of the cell are dumped in the vacuole.
3. Lysosomal enzymes occur in the vacuole of plant cell.
4. The vacuole contains cell sap and helps in maintaining turgidity of the cell.
5. Plant cell vacuole contains an osmotic concentration which is required for the process of osmosis through plasma membrane.
Lysosomes are called scavengers of the cell because they remove cell debris consisting of dead and worn out cell organelle by digesting the same. Rather they nourish the cells by sending out digesting nutrients into the cytoplasm.
Lysosomes are called scavengers of the cell because they remove cell debris consisting of dead and worn out cell organelle by digesting the same. Rather they nourish the cells by sending out digesting nutrients into the cytoplasm.
Endocytosis is swallowing up of food and other substances (bacteria, viruses) from external medium by the plasma membrane. This is possible only when plasma membrane is in direct contact with external medium. It occurs only in animal cells. In plant cells, a cell wall is present over the plasma membRead more
Endocytosis is swallowing up of food and other substances (bacteria, viruses) from external medium by the plasma membrane. This is possible only when plasma membrane is in direct contact with external medium. It occurs only in animal cells. In plant cells, a cell wall is present over the plasma membrane. Therefore, their plasma membrane cannot perform endocytosis.
Osmosis is diffusion of water from the region of its higher concentration (pure water or dilute solution) to the region of its lower concentration (strong solution) through a semipermeable membrane.
Osmosis is diffusion of water from the region of its higher concentration (pure water or dilute solution) to the region of its lower concentration (strong solution) through a semipermeable membrane.
Amoeba is unicellular animal. It acquires its food by the process of endocytosis" Plasma membrane of Amoeba is flexible with its help Amoeba engulfs food particles. The engulfed food particle passes into the body of organism as a phagosome. Phagosome combines with lysosome to produce digestive or foRead more
Amoeba is unicellular animal. It acquires its food by the process of endocytosis” Plasma membrane of Amoeba is flexible with its help Amoeba engulfs food particles. The engulfed food particle passes into the body of organism as a phagosome. Phagosome combines with lysosome to produce digestive or food vacuole. Digestion occurs in food vacuole. The digested food passes into surrounding cytoplasm. The undigested matter is thrown out of the cell.
There would not be any lysosome for intracellular digestion and cleansing, not complexing of molecules, no exocytosis and no formation of new plasma membrane.
There would not be any lysosome for intracellular digestion and cleansing, not complexing of molecules, no exocytosis and no formation of new plasma membrane.
Why do plant cells possess large sized vacuole?
Vacuole of plant cells is large in size because it has to take part in following activities: 1. It stores salts, sugar, amino acids, organic acids and some proteins. 2. Metabolic wastes of the cell are dumped in the vacuole. 3. Lysosomal enzymes occur in the vacuole of plant cell. 4. The vacuole conRead more
Vacuole of plant cells is large in size because it has to take part in following activities:
See less1. It stores salts, sugar, amino acids, organic acids and some proteins.
2. Metabolic wastes of the cell are dumped in the vacuole.
3. Lysosomal enzymes occur in the vacuole of plant cell.
4. The vacuole contains cell sap and helps in maintaining turgidity of the cell.
5. Plant cell vacuole contains an osmotic concentration which is required for the process of osmosis through plasma membrane.
Why are lysosomes also known as “scavengers of the cells”?
Lysosomes are called scavengers of the cell because they remove cell debris consisting of dead and worn out cell organelle by digesting the same. Rather they nourish the cells by sending out digesting nutrients into the cytoplasm.
Lysosomes are called scavengers of the cell because they remove cell debris consisting of dead and worn out cell organelle by digesting the same. Rather they nourish the cells by sending out digesting nutrients into the cytoplasm.
See lessHow is a bacterial cell different from an onion peel cell?
See differences between prokaryotic (bacterial cell) and eukaryotic
See differences between prokaryotic (bacterial cell) and eukaryotic
See lessName any cell organelle which is non membranous.
Ribosome.
Ribosome.
See lessWhy is endocytosis found in animals only?
Endocytosis is swallowing up of food and other substances (bacteria, viruses) from external medium by the plasma membrane. This is possible only when plasma membrane is in direct contact with external medium. It occurs only in animal cells. In plant cells, a cell wall is present over the plasma membRead more
Endocytosis is swallowing up of food and other substances (bacteria, viruses) from external medium by the plasma membrane. This is possible only when plasma membrane is in direct contact with external medium. It occurs only in animal cells. In plant cells, a cell wall is present over the plasma membrane. Therefore, their plasma membrane cannot perform endocytosis.
See lessWhat is osmosis?
Osmosis is diffusion of water from the region of its higher concentration (pure water or dilute solution) to the region of its lower concentration (strong solution) through a semipermeable membrane.
Osmosis is diffusion of water from the region of its higher concentration (pure water or dilute solution) to the region of its lower concentration (strong solution) through a semipermeable membrane.
See lessHow does an Amoeba obtain its food?
Amoeba is unicellular animal. It acquires its food by the process of endocytosis" Plasma membrane of Amoeba is flexible with its help Amoeba engulfs food particles. The engulfed food particle passes into the body of organism as a phagosome. Phagosome combines with lysosome to produce digestive or foRead more
Amoeba is unicellular animal. It acquires its food by the process of endocytosis” Plasma membrane of Amoeba is flexible with its help Amoeba engulfs food particles. The engulfed food particle passes into the body of organism as a phagosome. Phagosome combines with lysosome to produce digestive or food vacuole. Digestion occurs in food vacuole. The digested food passes into surrounding cytoplasm. The undigested matter is thrown out of the cell.
See lessWhere do the lipids and proteins constituting the cell membrane get synthesised?
Proteins are synthesized in ribosomes of rough ER while lipids are synthesized over smooth ER
Proteins are synthesized in ribosomes of rough ER while lipids are synthesized over smooth ER
See lessWhat would happen to the life of a cell if there was no Golgi apparatus?
There would not be any lysosome for intracellular digestion and cleansing, not complexing of molecules, no exocytosis and no formation of new plasma membrane.
There would not be any lysosome for intracellular digestion and cleansing, not complexing of molecules, no exocytosis and no formation of new plasma membrane.
See lessWhere are proteins synthesized inside the cell?
Proteins are synthesized in the ribosomes.
Proteins are synthesized in the ribosomes.
See less