Describe a scenario for how a eukaryotic cell might have evolved from a prokaryotic ancestor
Describe a scenario for how a eukaryotic cell might have evolved from a prokaryotic ancestor
Homework Answers
To explain the origin of eukaryotic cells, 'Endosymbiotic theory'
was proposed by Lynn Margulis.
According to this theory, eukaryotes originated from prokaryotes. A
small prokaryote ingested by a large prokaryote resisted
intracellular digestion and retained within the cell. Over time,
the prokaryote inside the cell behaved as an intracellular symbiont
(endosymbiont). Eventually, it lost its autonomy and evolved into
cell organelles such as mitochondria and chloroplast.
Evidence to support endosymbiotic theory:
There are several similarities between prokaryotes and cell
organelles (Mitochondria and chloroplast)
1. Both possess a circular genome
2. Both possess 70s ribosomes
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Describe a scenario for how a eukaryotic cell might have evolved
from a prokaryotic ancestor
14. It is believed that all cells evolved from a common ancestor cell. Describe some of...
14. It is believed that all cells evolved from a common ancestor cell. Describe some of the events that are likely to have happened to allow evolution toward the modern eukaryotic cell. What evidence is there to support that these events happened?
8. While many prokaryotic cells have a single membrane bilayer, all eukaryotic cells have a complex...
8. While many prokaryotic cells have a single membrane bilayer, all eukaryotic cells have a complex system of internal membrane-bound compartments. How might it be advantageous for the cell to have these additional compartments?
2. We say eukaryotic cell originated from the prokaryotic cell. Is there any evidence that is...
2. We say eukaryotic cell originated from the prokaryotic cell. Is there any evidence that is available for that. Explain. 3. You have studied all the phylum which belong to the plant kingdom. Which phylum evolved first and which phylum originated the latest? 4. What kind of phylum is widely distributed in Michigan as compared to Florida? Mention the phylum that is predominantly seen in Michigan and Florida in your discussion. 5. Site two points where the process of cellular...
Describe the structure, composition, function and importance of the major prokaryotic and eukaryotic structures below. Structures...
Describe the structure, composition, function and importance of the major prokaryotic and eukaryotic structures below. Structures common to all cells: Cell wall Cell membrane Cytoplasm Ribosome Nucleus/nucleoid region (genome) Flagella Structures unique to prokaryotic cells: Endospore Pilus Capsule plasmid Structures unique to eukaryotic cells: Mitochondria Chloroplast Vesicle Cytoskeleton
Compare a prokaryotic and eukaryotic cell on the basis of structural, functional, and metabolic differences.
Compare a prokaryotic and eukaryotic cell on the basis of structural, functional, and metabolic differences.
1.Describe and compare eukaryotic and prokaryotic flagella. 2.Describe post-translational and cotranslational transport. 3.Describe prokaryotic mRNA translation...
1.Describe and compare eukaryotic and prokaryotic flagella. 2.Describe post-translational and cotranslational transport. 3.Describe prokaryotic mRNA translation in detail, including all steps from start to finish, including all factors. 4.Describe the molecular events involved in regulation of the lac operon in response to both glucose and lactose levels, and transcript (mRNA) abundance regulation in the prokaryotic trp operon including attenuation. 5.Completely describe transcript (mRNA) abundance regulation in the prokaryotic trp operon, and discuss whether or not the attenuation mechanism of transcriptional...
Do the phrases describe prokaryotic promoters, eukaryotic promoters, or both?
Do the phrases describe prokaryotic promoters, eukaryotic promoters, or both?
Describe the roles of methylases and restriction enzymes in eukaryotic & prokaryotic cells.
Describe the roles of methylases and restriction enzymes in eukaryotic & prokaryotic cells.
what is the implication of the differences between prokaryotic cells and eukaryotic cell in regards to...
what is the implication of the differences between prokaryotic cells and eukaryotic cell in regards to the complexity of both cells
draw assignment- Draw a picture of a eukaryotic and a prokaryotic cell. 1. Make sure to...
draw assignment- Draw a picture of a eukaryotic and a prokaryotic cell. 1. Make sure to show relative size difference between the two cells by either labeling size or drawing a size difference. 2. Label the figures to show structures like the plasma membrane, mitochondria, chloroplast, ER, golgi and the nucleus (where relevant). 3. In the eukaryotic cell Show one location where you can find each of the following: lipids, nucleic acids, proteins and carbohydrates. 4. Now draw a neuron (a...
2. We say eukaryotic cell originated from the prokaryotic cell. Is there any evidence that is available for that. Explain. 3. You have studied all the phylum which belong to the plant kingdom. Which phylum evolved first and which phylum originated the latest? 4. What kind of phylum is widely distributed in Michigan as compared to Florida? Mention the phylum that is predominantly seen in Michigan and Florida in your discussion. 5. Site two points where the process of cellular...
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