Classification of vacuole – definition

A vacuole (/ˈvækjuːoʊl/) is a membrane-bound organelle which is present in plant and fungal cells and some protist, animal, and bacterial cells. The organelle has no basic shape or size; its structure varies according to the requirements of the cell.

Most bacteria release membrane vesicles (MVs) that contain specific cargo molecules and have diverse functions, including the transport of virulence factors, DNA transfer, interception of bacteriophages, antibiotics and eukaryotic host defence factors, cell detoxification and bacterial communication.

• Sap vacuole (store and concentrate mineral salts as well as nutrients)
• Contractile vacuole (take part in osmoregulation and excretion)
• Food vacuole (contain digestive enzymes with the help of which nutrients are digested)
• Air vacuole (help in buoyancy of cells)

I know of only three types: central vacuole – helps maintain plants’ shape and structure by storing water (hypotonic). contractile vacuole – pumps water out of protist cells to maintain a suitable concentration. food vacuole – storage for molecules that is a food source for the cell (phagocytosis).

Gas vacuoles are aggregates of hollow cylindrical structures called gas vesicles. They are located inside some bacteria . A membrane that is permeable to gas bound each gas vesicle. The inflation and deflation of the vesicles provides buoyancy, allowing the bacterium to float at a desired depth in the water.

Air vacuoles store gases and also provide buoyancy and mechanical strength. Note: Vacuoles are membrane-bound organelles that are found in both prokaryotes and eukaryotes cells. Vacuoles are of 4 types: Food vacuole, Sap vacuole, Gas vacuole, Contractile vacuole.

Plasmolysis is the process in which cells lose water in a hypertonic solution. The reverse process, deplasmolysis or cytolysis, can occur if the cell is in a hypotonic solution resulting in a lower external osmotic pressure and a net flow of water into the cell.

: a semipermeable membrane surrounding a vacuole in a plant cell.

Vacuole, in biology, a space within a cell that is empty of cytoplasm, lined with a membrane, and filled with fluid. Plant cells contain membrane-bound organelles, including fluid-filled spaces, called vacuoles, that play an important role in maintaining the rigidity of a plant.

A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.

Vacuoles are membrane-bound sacs within the cytoplasm of a cell that function in several different ways. In mature plant cells, vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth.

Answer. Answer: Animal cells have small vacuoles because they don’t need to store as much water as other organisms such as plants.

A vacuole is a membrane-bound organelle. They are a kind of vesicle. Vacuoles are closed sacs, made of membranes with inorganic or organic molecules inside, such as enzymes. They have no set shape or size, and the cell can change them as needed.

For this reason, vesicles are a basic tool used by the cell for organizing cellular substances. Vesicles are involved in metabolism, transport, buoyancy control, and temporary storage of food and enzymes. They can also act as chemical reaction chambers.

A mitochondrion contains outer and inner membranes composed of phospholipid bilayers and proteins.

Both plant and animal cells have vacuoles. In contrast, animal cells have many, smaller vacuoles.

Both animal and plant cells are eukaryotic cells and have several similarities. The similarities include common organelles like cell membrane, cell nucleus, mitochondria, endoplasmic reticulum, ribosomes and golgi apparatus.

Both plant and animal cells are eukaryotic, so they contain membrane-bound organelles like the nucleus and mitochondria. For example, plant cells contain chloroplasts since they need to perform photosynthesis, but animal cells do not.

Mitochondria are the “powerhouses” of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They’re responsible for capturing light energy to make sugars in photosynthesis.

Mitochondrion, membrane-bound organelle found in the cytoplasm of almost all eukaryotic cells (cells with clearly defined nuclei), the primary function of which is to generate large quantities of energy in the form of adenosine triphosphate (ATP).

Explanation: Plant cells require mitochondria to produce energy for the cell, usually through photosynthesis during the day. When the sun sets and the energy from sunlight is lost, the plant continues on through the night producing energy through cellular respiration.