- Do peroxisomes self replicate?
- Why do chloroplasts and mitochondria have double membranes?
- Does mitochondria have its own DNA?
- Does each cell have its own DNA?
- Why do mitochondria and chloroplasts have their own DNA?
- Do mitochondria and chloroplasts have their own genetic material?
- Can ribosomes self replicate?
- Do ribosomes contain DNA?
- How does oxygen get into or out of chloroplasts and mitochondria?
- What is the relationship between mitochondria and chloroplasts?
- Can chloroplasts self replicate?
Do peroxisomes self replicate?
Lysosomes are generally formed in the Golgi complex, whereas peroxisomes self-replicate.
Unlike self-replicating mitochondria, however, peroxisomes do not have their own internal DNA molecules.
Consequently, the organelles must import the proteins they need to make copies of themselves from the surrounding cytosol..
Why do chloroplasts and mitochondria have double membranes?
The double membrane found in mitochondria and chloroplasts appears to be a relic of the absorption of the prokaryotic bacteria by the eukaryotic host cells. The inner membrane, which now contains numerous folds, apparently came from the bacterial membrane, while the outer membrane came from the host cell itself.
Does mitochondria have its own DNA?
Mitochondria (the brown, oval-shaped structures) contain their own DNA.
Does each cell have its own DNA?
Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
Why do mitochondria and chloroplasts have their own DNA?
1. Genes within chloroplasts and mitochondria derive from subsets of endosymbiont genes whose products regulate their own gene transcription. These genes remain, along with their protein products, within a single membrane-bound compartment.
Do mitochondria and chloroplasts have their own genetic material?
Mutations in mitochondria Both mitochodnria and chloroplasts have their own genetic material, which are circular double stranded DNA. They exist in nucleoid regions within the organelles, usually multiple copies, encode rRNA and some proteins for the organelle function.
Can ribosomes self replicate?
In addition, evidence strongly points to ancient ribosomes as self-replicating complexes, where the rRNA in the ribosomes had informational, structural, and catalytic purposes because it could have coded for tRNAs and proteins needed for ribosomal self-replication.
Do ribosomes contain DNA?
Ribosomes do not contain DNA. Ribosomes are composed of 2 main sub-units – the large subunit joins together the mRNA and the tRNA forming polypeptide chains whereas the smaller RNA subunits reads RNA.
How does oxygen get into or out of chloroplasts and mitochondria?
oxygen is important in the reactions of both photosynthesis and cellular respiration. How does oxygen get into or out of the chloroplasts and mitochondria? … The inner membrane of the mitochondria is folded; these folds are called cristae.
What is the relationship between mitochondria and chloroplasts?
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.
Can chloroplasts self replicate?
Chloroplasts are self-replicating organelles that contain their own genome which encodes at least some of the chloroplast-specific proteins.