All of the following are correct statements about the structure of a neuron EXCE

Question

All of the following are correct statements about the structure of a neuron EXCEPT a. Neurons contain a nucleus, mitochondria, endoplasmic reticulum, and Golgi apparatus. b. Neurons contain a nucleus and mitochondria, but none of the other organelles found in the typical eukaryotic cell. C. The structure of a nerve follows its function, which is to conduct electrical impulses. d. Dendrites are specialized fibrous extensions that receive signals. During muscle contraction Ca2+ a. covers the myosin binding sites on actin molecules b. activates the sarcoplasmic reticulum, which in turn stimulates a motor neuron. c. changes the conformation of troponin and exposes myosin-binding sites of actin. d. migrates to the neuromuscular junction, resulting in an action potential. x

Explanation / Answer

The correct option is (b) neurons contain a nucleus and motochondria , but none of the other organelles found in the typical aukaryotic cell.

Explanation:-

- nerve cell body contains nucleus , mitochondria, endoplasmic reticulum and golgi apparatus.

Q.2.

The correct option is ( C) changes the confirmation of troponin and exposes myosin - binding sites of actin.

Explanation:- after exposure myosin bind to the myosn binding site on the actin filaments. Then contraction starts.

Hopefully it helps thanks.

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