Biology, 05.10.2019 11:00 fonsworth5

Why can't certain cells, like bacteria, get to be the size of a small fish?

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The fact that surface area to volume decreases as size increase. There is a limit to this ratio where the surface area can no longer be sufficient to provide nutrients, ions and other things from the outside environment to the inside. Eukaryotes compenaste for this by having organized organneles and they tend to work together to form tissues and then organs.

Answer from: floresvanexel4pejp1p

The fact that surface area to volume decreases as size increase. There is a limit to this ratio where the surface area can no longer be sufficient to provide nutrients, ions and other things from the outside environment to the inside. Eukaryotes compensate for this by having organized organelles and they tend to work together to form tissues and then organs. I hope this helps:)

Answer from: Quest

Organism, organ system, organs, tissue, cells

Answer from: Quest

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

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