Which organelle can be compared to a security guard who decides whom may enter a building and whom may not

1 answer:

4 0

The correct answer here is "cell membrane". Generally it makes sure that nothing enters or leaves the cell, except by its highly guarded "gates", such as ion channels, that let some particles through - but they're very picky about whom to let in!

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Monosaccharides can be grouped as aldehydes and kefone groups,what is their difference and similarities and list four examples f

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Answer:

Aldehyde has C=O bonded to atleast one H atom while Ketone has C=O bonded to two carbon atoms

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Similarity

Both the aldehyde and ketone have C=O group

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