3 years ago

Onion cell and elodea cell

1 answer:

4 0

Both onion and elodea cells had a cell wall and cytoplasm but the onion lacked chloroplasts. 1. Onion is a storage organ for the onion plant. It is underground so it can't do photosynthesis.

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"GFP contained in synaptic vesicles moved into the synaptic cleft by exocytosis."

Explanation:

Synaptic vesicles are small membrane sacs that carry neurotransmitters from the cell body where they are produced, to the presynaptic membrane of the terminal button where they are released. The release zone of the presynaptic membrane contains voltage-dependent calcium channels. When an action potential depolarizes the presynaptic plasma membrane, $Ca^{2+}$ -channels open, and $Ca^{2+}$ flows into the nerve terminal to trigger the exocytosis of synaptic vesicles, thereby releasing their neurotransmitters into the synaptic cleft