Please explain each why that is answer 1. Which enzyme phosphorylates myosin lig

Question

Please explain each why that is answer

1. Which enzyme phosphorylates myosin light chain proteins in smooth muscle? and explain why

a. tropomyosin

b. myosin heavy chain

c. myosin light chain kinase

d. myosin light chain phosphatase

2.The CNS structure whose abnormal function is associated with Parkinson’s disease is the

explain why

a. spinal cord

b. basal ganglia

c. cerebellum

d. primary motor cortex

3.Which CNS structure adjusts motor patterns by comparing what happened with what should have happened? and explain why

a. basal nuclei

b. cerebellum

c. primary motor cortex

d. spinal cord

Explanation / Answer

1. c. myosin light chain kinase. Phosphorylation of myosin light chain protein by myosin light chain kinase or MLK initites its ontraction.

2. b. Basal ganglia

Parkinsonism is a motor disorder caused due to degeneration of CNS neurons mainy in the basal ganglia (imbalance in cholinergic and dopaminergic neurons).

3. d. primary motor cortex

Primary motor cortex is mainly invovled in the execution of movements.

3.

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