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Which cellular organelles replicate in the G1 phase of the cell cycle?
Organelles such as the mitochondria and the chloroplasts replicated in the G1 phase of the cell cycle. This is so that when the cell divides, no parts are lost.
What two characteristics do cells have?
Cells have a cell membrane that separates internal and external environments and contains cellular organelles. They also have the ability to self-replicate through cell division and contain genetic material in the form of DNA responsible for directing cellular functions.
What compares the replication of mitochondria to the replication of organelles that do not have their own DNA?
Mitochondria replicate independently through a process similar to binary fission, similar to bacterial division, due to their own circular DNA. In contrast, organelles without their own DNA, like the endoplasmic reticulum or Golgi apparatus, rely on the cell's overall growth and division processes for replication. While mitochondria can self-replicate in response to cellular energy demands, other organelles are synthesized and assembled through the cell's machinery, demonstrating distinct mechanisms of replication and regulation.
What organelles undergo cellular respiration?
Mitochondria are the organelles where cellular respiration occurs.
Do archaea possess organelles within their cellular structure?
No, archaea do not possess organelles within their cellular structure.
Phase of cell cycle when the organelles and chromosome replicate?
Interphase
What is an organism whose organelles are used by a virus to replicate?
Host.
What is the cellular organelles that perform cellular respiration to produce energy for the cell?
Mitochondria are the cellular organelles that perform cellular respiration to produce energy in the form of ATP for the cell.
What organelles possess small ribosomes and circular DNA?
Mitochondria and chloroplasts possess small ribosomes and circular DNA. These organelles are believed to have originated from bacterial ancestors that were engulfed by early eukaryotic cells through endosymbiosis.
Can plasmids self-replicate within a bacterial cell?
Yes, plasmids can self-replicate within a bacterial cell.
How do viruses and cellular organisms differ?
Viruses are acellular particles that require a host cell to replicate, while cellular organisms are standalone living entities. Viruses lack organelles and cannot carry out metabolic processes independently. Cellular organisms, on the other hand, have a defined cell structure with organelles and can carry out all life processes independently.
Can cellular metabolism occur within organelles?
Yes, cellular metabolism can occur within organelles. For example, cellular respiration takes place in the mitochondria, while photosynthesis occurs in the chloroplasts. Organelles provide specific environments for metabolic reactions to take place efficiently.
