Question

In: Anatomy and Physiology

1. Myasthenia Gravis is an autoimmune disease where antibodies slowly destroy the acetylcholine receptors on skeletal...

1. Myasthenia Gravis is an autoimmune disease where antibodies slowly destroy the acetylcholine receptors on skeletal muscle cells. Which of the following would you expect in patients with Myasthenia Gravis?

A. Increased ability to transmit action potentials to the axon terminus

B. Decreased ability to transmit action potentials to the axon terminus

C. Decreased ability to contract muscles and muscle weakness

D. Increased ability to contract muscles and increased muscle strength

2. Concentrations of blood hormone levels are regulated by all except

A. Rate of clearance/removal from the brain

B. Rate of secretion by endocrine gland

C. Rate of clearance/removal from blood

D. Degradation by enzymes in the blood

3. Peptide hormones are cleaved in a 3 step process. Which statement accurately depicts this cleavage process?

A. Preprohormone are synthesized in the ribosomes --> Preprohormones are cleaved in the rough ER as prohormones --> Prohormones are packaged in vesicles by the Golgi Apparatus and cleaved to form hormones

B. Preprohormone are synthesized in the ribosomes --> Preprohormones are cleaved in the rough ER as prohormones --> Prohormones are packaged in vesicles by the mitochondria and cleaved to form hormones

C. Preprohormone are synthesized in the ribosomes --> Preprohormones are cleaved in the smooth ER as prohormones --> Prohormones are packaged in vesicles by the Golgi Apparatus and cleaved to form hormones

D. Preprohormone are synthesized in the smooth ER --> Preprohormones are cleaved in the ribosomes as prohormones --> Prohormones are packaged in vesicles by the Golgi Apparatus and cleaved to form hormones

Expert Solution

Sydney Mullin answered 6 hours ago

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