Which of the following is usefule to distinguish between prokaryotic and eukaryotic cells
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Which of the following is usefule to distinguish between prokaryotic and eukaryotic cells

[From: ] [author: ] [Date: 11-05-18] [Hit: ]
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the presence of dna for storage of the gentic information in several linear chromosomes
the sedimentation coefficient of the ribosomes
the presence of a nuclear membrane all one these none of these

2nd question
which of the following is not a function of the plasma membrane
it separates the cell from its environment
it serves selectively permeable barrier allowing some molecules to enter the cell while preventing other from doing so
it is the location of a variety of crucial metabolic processes including protein synthesis
all of these functions are functions of the plasma membrane
3qs
which of the following is not true of capsules
they help bacteri escape phagocytosis by phagotrophic protozoa
they aid adhesion
they protect against bacteriophage
non of these
all of these

YOUR help desperately needed !!! i have an exam tomorrow and cant find the answers to these

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The presence of DNA storage (circular for procaryotes and linear for eucaryotes)
Ribosomal subunits in procaryotes (30 S and 50 S) eucaryotes (40 S 60 S) - they would sediment differently due to their different sizes

Question 2: protein synthesis; this process occurs in the rough ER or ribosomes

Question 3: all of these; the capsule is usually a polysaccharide coat that protect the bacteria, aids in adhesion, and can cause disease
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