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What is the evidence scientists have to support endosymbiosis and the evolution of prokaryotes to eukaryotes?
The difference between eukaryotes and prokaryotes is primarily that prokaryotes don't have membrane-wrapped organelles, including a cell nucleus containing its genetic material and mitochondria, the organelles that produce most of the eukaryote's supply of ATP, a source of chemical energy for cells. It is thought that organelles like the mitochondria evolved in eukaryotes as a result of endosymbiosis between prokaryotes. A similar origin has been proposed for chloroplasts in algae and plants. This is supported by the fact that these organelles contain their own DNA, and replicate independently from the host cell, as well as by their apparent genetic, morphological and behavioural relationship with various extant prokaryotes.
Are any organelles present in only plant cells?
Every cell has organelles. Prokaryotes were once thought to have no organelles but some have been found now. Eukaryotes have membrane bound organelles and prokaryotes do not.
Can prokaryotes use sunlight?
Yes, some prokaryotes can use sunlight for energy. Photosynthetic prokaryotes, such as cyanobacteria, contain pigments like chlorophyll that allow them to capture light energy and convert it into chemical energy through photosynthesis. This process enables them to produce their own food and contribute to the global carbon cycle. Other prokaryotes, like certain archaea, may utilize different forms of light-driven energy conversion, but not all prokaryotes are photosynthetic.
Which process uses chloroplasts in eukaryotes?
Photosynthesis is the process that uses chloroplasts in eukaryotes. Chloroplasts are membrane-bound organelles that contain chlorophyll, enabling them to capture sunlight and convert it into chemical energy to produce sugars from carbon dioxide and water.
What are the three names of cell oragelles and describe their function?
Mitochondria: Produce energy for the cell through cellular respiration. Nucleus: Contains the cell's genetic material (DNA) and controls cellular activities. Chloroplasts: Found in plant cells and are responsible for photosynthesis, converting sunlight into chemical energy.
What is the evidence scientists have to support endosymbiosis and the evolution of prokaryotes to eukaryotes?
The difference between eukaryotes and prokaryotes is primarily that prokaryotes don't have membrane-wrapped organelles, including a cell nucleus containing its genetic material and mitochondria, the organelles that produce most of the eukaryote's supply of ATP, a source of chemical energy for cells. It is thought that organelles like the mitochondria evolved in eukaryotes as a result of endosymbiosis between prokaryotes. A similar origin has been proposed for chloroplasts in algae and plants. This is supported by the fact that these organelles contain their own DNA, and replicate independently from the host cell, as well as by their apparent genetic, morphological and behavioural relationship with various extant prokaryotes.
Are any organelles present in only plant cells?
Every cell has organelles. Prokaryotes were once thought to have no organelles but some have been found now. Eukaryotes have membrane bound organelles and prokaryotes do not.
What do prokaryotes do in response to a chemical signal?
alter the level of production of various enzymes
How do the two members of the two domains of prokaryotes differ?
there are important differences in the structure and chemical makeup of their cells.Some prokaryotes are unicellular, and others are multicellular.Although bacteria and archaea are similar in some ways, there are important differences in the structure and chemical makeup of their cells.
What are advantage of chemical change?
The biggest advantage of chemical change is life. All organisms are alive because of the sum total of all the chemical reactions occurring in their cells.
Archaea have a similar chemical makeup to bacteria?
like bacteria members of the domain archaea are unicellular prokaryotes
What four characteristics are used primarily to identify prokaryotes?
list 4 factors that are used to identify prokaryotes What are four characteristics used to identify prokaryotes? Their shape The chemical nature of their cell walls The way they move The way they obtain energy A fifth is also gram stain
Can prokaryotes use sunlight?
Yes, some prokaryotes can use sunlight for energy. Photosynthetic prokaryotes, such as cyanobacteria, contain pigments like chlorophyll that allow them to capture light energy and convert it into chemical energy through photosynthesis. This process enables them to produce their own food and contribute to the global carbon cycle. Other prokaryotes, like certain archaea, may utilize different forms of light-driven energy conversion, but not all prokaryotes are photosynthetic.
What are the advantage of biochemistry?
it tells us about chemical reactions in our body.
Which process uses chloroplasts in eukaryotes?
Photosynthesis is the process that uses chloroplasts in eukaryotes. Chloroplasts are membrane-bound organelles that contain chlorophyll, enabling them to capture sunlight and convert it into chemical energy to produce sugars from carbon dioxide and water.
What are the three names of cell oragelles and describe their function?
Mitochondria: Produce energy for the cell through cellular respiration. Nucleus: Contains the cell's genetic material (DNA) and controls cellular activities. Chloroplasts: Found in plant cells and are responsible for photosynthesis, converting sunlight into chemical energy.
What is the history of mashed potatoes?
The nucleus of the eukaryotic cells contains the DNA of the cell and the associated proteins that form the chromosomes, and is separated from the cytoplasm by a double porous membrane. The outer nuclear membrane has a complex internal structure, part of which is covered with ribosomes, i.e., protein and RNA containing bodies which are the sites of protein synthesis. In aerobic eukaryotes, chemical energy is trapped in the microchondria, organelles bounded by a double membrane and containing an internal membrane structure in which are found both the electron transport system and the enzymes associated with respiratory metabolism. Mitochondria are absent in anaerobic eukaryotes. In photosynthetic eukaryotes, i.e., green algae, an organelle similar to the mitochondrion, the chloroplast, is found. Both mitochondria and chloroplasts contain small circular DNA molecules similar to those found in prokaryotes, ribosomes and other components of protein synthesis. The nucleus of the eukaryotic cells contains the DNA of the cell and the associated proteins that form the chromosomes, and is separated from the cytoplasm by a double porous membrane. The outer nuclear membrane has a complex internal structure, part of which is covered with ribosomes, i.e., protein and RNA containing bodies which are the sites of protein synthesis. In aerobic eukaryotes, chemical energy is trapped in the microchondria, organelles bounded by a double membrane and containing an internal membrane structure in which are found both the electron transport system and the enzymes associated with respiratory metabolism. Mitochondria are absent in anaerobic eukaryotes. In photosynthetic eukaryotes, i.e., green algae, an organelle similar to the mitochondrion, the chloroplast, is found. Both mitochondria and chloroplasts contain small circular DNA molecules similar to those found in prokaryotes, ribosomes and other components of protein synthesis.
