Question

Lipophobic molecules that are to be released by cells are stored in membrane-bound structures called:________

Answer 1

secretory vesicles

Lipophobic molecules that are to be released by cells are stored in membrane-bound structures called secretory vesicles.

What is a secretory vesicle?

• The secretory vesicle is a type of vesicle that facilitates the delivery of cargo, such as hormones or neurotransmitters, from an organelle to particular locations on the cell membrane, where it docks and fuses to release its contents.

What roles does the secretory vesicle play?

• Along with transport, secretory vesicles have the ability to store and breakdown some released compounds.
• Neurotransmitters are found in synaptic vesicles.
• Through secretory vesicles, hormones can be delivered into the bloodstream.

Secretory vesicles are produced where?

• In response to extracellular signals, secretory vesicles that originate from the trans Golgi network exocytose their contents to the cell's exterior.
• A protein or a tiny molecule, like histamine, can be the released product (such as a hormone or digestive enzyme).

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