Explanation:

Prokaryotes do have organelles, but not complex, membrane-bound organelles. Together a result, the membrane-bound mitochondria would not be checked out in prokaryotes. Remember the plants room eukaryotes, and have cabinet walls as with prokaryotes. In addition, prokaryotes have actually ribosomes as well as DNA.

You are watching: Which of the following is not true about prokaryotic cells


Explanation:

Prokaryotes do not have actually membrane-bound organelles, such as mitochondria or an endoplasmic reticulum.

Flagella room hair-like frameworks that enable the cabinet to move, and are existing in both prokaryotes and eukaryotes. Return prokaryotes don"t have actually multiple chromosomes prefer eukaryotes, they execute still have actually DNA in the form of a cyclic chromosome. Ribosomes space not tied by a membrane, and are crucial to the process of translation, which creates proteins in the cell. Prokaryotes and also eukaryotes own ribosomes in bespeak to form functional proteins.


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Example inquiry #2 : Cell structures


Where go the electron deliver chain occur in prokaryotes cells and also eukaryotic cells, respectively?


Possible Answers:

The chloroplasts; the mitochondria


The mitochondria; the mitochondria


The moving membrane; the mitochondria


The chloroplasts; the cellular membrane


The mitochondria; the moving membrane


Correct answer:

The moving membrane; the mitochondria


Explanation:

Prokaryotes, such as bacteria, do not save on computer membrane-bound oribel such together the nucleus, mitochondria, and also chloroplasts the we might find in a eukaryotic bio cell. Due to the fact that we recognize the electron move chain (ETC) is essential in offering cellular energy, prokaryotes must still execute some kind of this process. The complexes of the etc are found in the actual cellular membrane the separates the cell from the environment in prokaryotes, while lock are discovered in the inside mitochondrial membrane in eukaryotes. Eukaryotes are then may be to create a proton gradient in between the 2 mitochondrial membranes within the intermembrane space, when prokaryotes deserve to generate a gradient in between the cabinet membrane and also cell wall.


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Example concern #4 : knowledge Eukaryotic and also Prokaryotic distinctions


Prokaryotes and eukaryotes are identified by a series of differences. I beg your pardon of the complying with structures is discovered in one class of cell, but not the other?


Possible Answers:

Plasma membrane


Mitochondria


Ribosomes


Cell wall


Correct answer:

Mitochondria


Explanation:

Prokaryotes do not have actually membrane-bound organelles, so they would not have mitochondria.

Cell walls and plasma membranes are found in both bacteria (prokaryotes) and plants (eukaryotes). Ribosomes room not tied by a membrane, and are greatly composed that rRNA; they are supplied for protein synthesis in both prokaryotes and eukaryotes.


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Example question #5 : understanding Eukaryotic and also Prokaryotic distinctions


Which framework is present in prokaryotic cells, but not eukaryotic bio cells?


Possible Answers:

A cabinet membrane


80S ribosomes written of one 60S and also one 40S subunit


A circular, double-stranded molecule of DNA together its main hereditary material


Numerous organelles favor mitochondria and also lysosomes


A nuclear envelope


Correct answer:

A circular, double-stranded molecule of DNA together its main genetic material


Explanation:

In general, prokaryotes cells space smaller and also less complex than eukaryotic cells. They absence membrane-bound organelles (such together mitochondria) and contain a nucleoid an ar instead of a membrane-bound nucleus. Castle do have ribosomes, however those are tiny (70S) and also composed of one 30S and also one 50S subunit. Only eukaryotic ribosomes are 80S. Finally, both prokaryotes and also eukaryotes space encased in cell membranes.

One difference in between prokaryotic and also eukaryotic cell is the organization and also storage of hereditary material. Both use DNA in the double-helix structure. In eukaryotes, this DNA is save as chromatin or chromosomes in ~ the nucleus, but in prokaryotes it is stored in a one bundle recognized as the newly closed in the cytoplasm.


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Example question #6 : knowledge Eukaryotic and also Prokaryotic distinctions


Prokaryotic cells have __________.


Possible Answers:

a nucleoid region, yet no plasma membrane encasing the cell


a plasma membrane encasing the cell, but no membrane-bound organelles


mitochondria, but no nucleus


a Golgi apparatus, but no membrane-bound nucleus


a membrane-bound nucleus, yet no lysosomes


Correct answer:

a plasma membrane encasing the cell, but no membrane-bound organelles


Explanation:

When compare prokaryotes to eukaryotes, the main reality to psychic is the prokaryotes carry out not save on computer membrane-bound organelles. This way they have actually no mitochondria, Golgi apparatus, or absorbent reticulum. They also lack a membrane-bound nucleus, return they carry out have hereditary material situated in a nucleoid region. Prokaryotes cells room surrounded through a plasma membrane, and some types of bacteria have actually cell walls as well.


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Example question #2 : Cell structures


Which structure can be uncovered in a prokaryotes cell?


Possible Answers:

Rough absorbent reticulum


Mitochondria


Peroxisomes


Centrioles


Plasma membrane


Correct answer:

Plasma membrane


Explanation:

Prokaryotic cells differ from eukaryotic cells in the they lack any type of membrane-bound organelles, including a nucleus. Instead, prokaryotic cells simply have an outer plasma membrane, DNA nucleoid structure, and also ribosomes.

Rough endoplasmic reticulum, peroxisomes, and also mitochondria are all bound by their own plasma membranes, and also are only found in eukaryotic cells. Centrioles room a component of the cytoskeleton of eukaryotic bio cells, yet are not found in prokaryotes.


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Example question #1 : Cellular biology


A team of researcher in a laboratory have uncovered what they believe to be an unknown organism. They an alert that this organism lacks a atom membrane and mitochondria. Using this information, which of the adhering to structures would this biology most most likely possess?


Possible Answers:

Chloroplasts


Endoplasmic reticulum


Lysosomes


Ribosomes


Cilia


Correct answer:

Ribosomes


Explanation:

The organism is likely a prokaryotic organism, because it lacks a nuclear membrane and also mitochondria. Prokaryotes absence all membrane-bound organelles, including nuclei, mitochondria, endoplasmic reticulum, chloroplasts, and lysosomes.

Both prokaryotes and eukaryotes save ribosomes. Ribosomes are not membrane-bound, and are mostly composed of rRNA. Prokaryotes require ribosomes in order come synthesize proteins.

Cilia are composed the microtubules. While countless prokaryotes have actually cilia, us cannot draw any kind of conclusions there is no knowing much more about the identification of the organism.


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Example concern #9 : understanding Eukaryotic and Prokaryotic distinctions


A prokaryotes cell has which the the following? 


Possible Answers:

Ribosomes


Endoplasmic reticulum 


Golgi apparatus 


Microtubules 


Nucleus 


Correct answer:

Ribosomes


Explanation:

Prokaryotic cell are straightforward cells that absence membrane-bound nuclei and complex organelles. Endoplasmic reticulum, microtubules, and the Golgi apparatus are unique to eukaryotic cells, and also will not be found in prokaryotes. Prokaryotes do, however, save ribosomes, though smaller than the ribosom in eukaryotic cells. Prokaryotes and also eukaryotes space both capable of the main processes of the central dogma: DNA replication, transcription, and also translation. Because that this to be possible, prokaryotes must contain DNA, warrior proteins, RNA, and ribosomes.


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Example question #10 : knowledge Eukaryotic and also Prokaryotic differences


What structure have the right to be found in all life cells?


Possible Answers:

Mitochondria


Nucleus


Nucleolus 


Cell wall


Ribosomes


Correct answer:

Ribosomes


Explanation:

Unlike eukaryotes, prokaryotes have actually no membrane-bound organelles. This means that they absence a nucleus, mitochondria, and other advanced cell structures.

All cells rely on protein components in order come function. Protein synthesis takes ar on ribosomes, which have the right to be uncovered in all cell types. In prokaryotes, ribosome are free floating the cytoplasm; in eukaryotes, ribosomes deserve to be free floating in the cytoplasm, bound come the rough endoplasmic reticulum, in mitochondria, or in chloroplasts.

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