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What is a eukartotic cell?
A eukaryotic cell is a type of cell that has a defined nucleus enclosed by a membrane. These cells also contain other membrane-bound organelles, such as mitochondria and endoplasmic reticulum. Eukaryotic cells are found in plants, animals, fungi, and protists.
What are larger cells with membrane-bounded organelles?
Eukaryotic cells are larger cells with membrane-bounded organelles. They include a nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and lysosomes, among others. These organelles perform specialized functions within the cell.
What are very small organelles not bounded by a membrane and consist of a large and a small subunit?
Ribosomes http://en.wikipedia.org/wiki/Ribosome Although some can be membrane bound, not all are. Also, read the section on structure to see the info on the large/small subunits
What cell component has a complex network of flattened membrane-bounded sacs called cisternae?
The endoplasmic reticulum (ER) is the cell component that has a complex network of flattened membrane-bounded sacs called cisternae. It plays a role in protein and lipid synthesis, as well as in the transport of molecules within the cell.
Why do membrane Bound organelles facilitate faster chemical reactions?
Membrane-bound organelles provide isolated environments within the cell where specific chemical reactions can occur without interference from other cellular processes. This isolation allows for the accumulation of high concentrations of reactants, enzymes, and cofactors, which can enhance reaction rates and efficiency. Additionally, membranes often contain specific transport proteins that facilitate the movement of reactants and products in and out of the organelle, further promoting faster reactions.
What structure in the cells are surrounded by membranes?
all cell organelle are membrane bounded especially in eukaryotes
What is bounded by a double membrane?
Chloroplasts, mitochondria and the nucleus have double membranes.
Does bacteria have a membrane enclosed organelles?
No, bacteria do not have membrane-enclosed organelles like eukaryotic cells do. Instead, the internal components of bacteria are not separated by membranes but may be organized by intracellular structures such as ribosomes, nucleoid regions, and plasmids.
Is Golgi body bounded by membranes?
Yes, the Golgi body is bounded by membranes. It consists of a series of flattened, membrane-bound sacs called cisternae. These membranes play a crucial role in processing, modifying, and packaging proteins and lipids for transport within or outside the cell.
What organelles is bounded by a double membrane?
Chloroplasts, mitochondria and the nucleus have double membranes.
What is the name of a cell organelle not bounded by membrane?
Ribosome is a cell organelle not bounded by membrane. It is responsible for protein synthesis in the cell.
How is the DNA in prokaryotes different form the DNA in eukaryotes?
DNA in a eukaryote is surrounded by a nuclear membrane, hence forming a distinct nucleus whereas the DNA in a prokaryote is not bounded by a nuclear membrane and floats freely in the cytoplasm.
What is a membrane-bounded sac?
Vacuoles
What do eukaryotes do?
Organisms containing advanced cells, each of which has true nucleus and membrane-bounded organelles. Thus, in eukaryotic cells, the genetic material is isolated from cytoplasm by a nuclear envelope of two membranes.
Where is a eukaryote?
Organisms containing advanced cells, each of which has true nucleus and membrane-bounded organelles. Thus, in eukaryotic cells, the genetic material is isolated from cytoplasm by a nuclear envelope of two membranes.
Are both chloroplasts and mitochondria bounded by two membranes?
Yes. The outer membrane is similar to modern eukaryotic membranes, such as the plasma membranes of animals and plants. The inner membrane is similar to modern prokaryotic membranes, found in bacteria. This difference has been taken as one piece of evidence to support the theory of the endosymbiotic origin of these two organelles, i.e. the idea that each of these organelles formed originally from the engulfing of a prokaryotic cell by a eukaryotic one.
A sac bounded by a single membrane?
A sac bounded by a single membrane is called a lysosome. This organelle is present only in animal cells and contributes in intracellular digestion.
