Why must a cell body be intact for an axon to regenerate? (Hint: What structure is housed only in the cell body, and what are its functions?)

Video transcript

Hey, everyone. Let's take a look at this question together. The following are the importance of the cell body and acts on regeneration, except which is it. Answer choice, a provision of energy and metabolic support. Answer choice B synthesis of proteins for the regeneration process. Answer choice C maintenance of the interactions between the Axon and Schwann cells or answer choice D provision of ideal conditions for meiotic cell division to take place. Let's work this problem out together to try to figure out which of the following answer choices contains a false statement about the importance of the cell body in axon regeneration. So in order to solve this question, we have to recall what we have learned about the role of the cell body in Exxon regeneration to determine which of the following answer choices contains a false statement starting off with answer choice A which says provision of energy and metabolic support. While we know that the cell body is responsible for providing that energy and metabolic support for cellular processes that are involved in axon regeneration. So answer choice A is a true statement since the cell body supplies a TP for cellular processes, which is that provision of energy and metabolic support. So answer choice A cannot be the correct answer. Next. We have answer choice B which says the synthesis of proteins for the regeneration process. We know that the synthesis of proteins in the cell body is crucial for the regeneration process. So answer choice B is also a true statement as the synthesis of proteins such as structural proteins, enzymes and signaling proteins are crucial for the regeneration process. So answer choice B cannot be the correct answer. Next, we have answer choice C which says the maintenance of the interactions between the axon and the Schwan cells, which we know that the cell body maintains those interactions between the axon and the Schwan cells. So answer choice C is also a true statement as the cell body maintains the interactions between the axon and the supporting cells, which are those swan cells for guidance and support of the regenerating axon. Which means that answer choice C is also not the correct answer. Leaving us with only one remaining answer choice which is answer choice D, the correct answer. Since answer choice D which says the provision of ideal conditions for meiotic cell division to take place is a false state about the importance of the cell body in axon regeneration. Since the cell body does not provide ideal conditions for myotic cell division. And instead axon regeneration involves mitotic cell division which produces identical daughter cells that are used for tissue repair and regeneration of the Axon. So answer choice D is a false statement making it the correct answer. I hope you found this video to be helpful. Thank you and goodbye.