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A vacuole typically has a single membrane, known as the tonoplast, which surrounds its contents. This membrane is crucial for regulating the movement of ions and molecules in and out of the vacuole, playing a key role in maintaining cellular homeostasis and storage. In plant cells, vacuoles can be quite large and serve various functions, including storage of nutrients and waste products.
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Is it true that Mitochondria are double membrane organelles.?
No,it is not the only organelle. Many other organelles have double membranes. Ex: Chloroplast,lysosoem,vacuole etc
What organelle helps move excess water?
A specific type of vacuole, called a contractile vacuole expels excess water from many fresh water protists.
Which is not a function of a vacuole fuse with other membranes transport molecules store molecules digest molecules?
A vacuole does not typically function to "transport molecules." Instead, its primary roles include storing molecules, digesting certain substances, and sometimes fusing with other membranes to release or modify contents. Transport of molecules is generally handled by other cellular structures and mechanisms, such as vesicles and the endoplasmic reticulum.
In a living cell could the nucleus occur in the vacuole?
In a living cell, the nucleus cannot occur in the vacuole. The nucleus is a distinct organelle that contains the cell's genetic material and is surrounded by its own nuclear membrane, while the vacuole is primarily involved in storage and maintaining turgor pressure, particularly in plant cells. These organelles have different functions and are separated by their own membranes, making it biologically impractical for the nucleus to reside within a vacuole.
The place where digestion takes place in many protozoa is called?
The place where digestion takes place in many protozoa is called the vacuole. The vacuole contains enzymes that help in breaking down food particles for absorption and energy production.
Is it true that Mitochondria are double membrane organelles.?
No,it is not the only organelle. Many other organelles have double membranes. Ex: Chloroplast,lysosoem,vacuole etc
What determines whether or not a substance can actively transported through the membranes?
Active transport can only occur at intact, closed membranes. Such membranes can envelop very different compartments, like the whole cell, vesicles, the vacuole, the mitochondrial matrix, the inner thylacoid space of the chloroplasts, etc.
What organelle helps move excess water?
A specific type of vacuole, called a contractile vacuole expels excess water from many fresh water protists.
In a living cell could the nucleus occur in the vacuole?
In a living cell, the nucleus cannot occur in the vacuole. The nucleus is a distinct organelle that contains the cell's genetic material and is surrounded by its own nuclear membrane, while the vacuole is primarily involved in storage and maintaining turgor pressure, particularly in plant cells. These organelles have different functions and are separated by their own membranes, making it biologically impractical for the nucleus to reside within a vacuole.
How many membranes does a mitochondrion have?
A mitochondrion has two membranes.
The place where digestion takes place in many protozoa is called?
The place where digestion takes place in many protozoa is called the vacuole. The vacuole contains enzymes that help in breaking down food particles for absorption and energy production.
What determines whether or not a substance can be actively transported through the membrane?
Active transport can only occur at intact, closed membranes. Such membranes can envelop very different compartments, like the whole cell, vesicles, the vacuole, the mitochondrial matrix, the inner thylacoid space of the chloroplasts, etc.
Structures found in plant cells but not animal cells?
Plant cells have cell walls as well as cell membranes; animal cells only have cell membranes. Also, plant cells would have chloroplasts (the organelles that turn sunlight into sugars). Animal cells usually have many smaller vacuoles (stores waste, water, and nutrients), while plant cells usually have one big vacuole.
How do large food particles exit an amoeba?
Amoeba ingests food by a process known as phagocytosis. The amoeba modifies its cytoskeleton to 'wrap around' the food particle with its membranes. The membrane then fuses, trapping the food particle in a vacuole inside the cell. The vacuole is then fused with a lysosome and the lysosomal enzymes will break down the food particle.
Where can selectively permeable membranes be found in a plant cell?
Selectively permeable membranes can be found in several locations within a plant cell, most notably in the plasma membrane that surrounds the cell. This membrane regulates the movement of substances in and out of the cell, allowing essential nutrients to enter while keeping harmful substances out. Additionally, selectively permeable membranes are present in the tonoplast, which encloses the central vacuole, and in the membranes of organelles such as chloroplasts and mitochondria, each controlling the exchange of materials specific to their functions.
How many membranes are in the chloroplasts?
Nucleus is surrounded by a double membrane.
How many membranes does cyoplasm have?
7
