Skeletal muscles have two special inclusions that help them perform their function of movement. What are the two special inclusions of skeletal muscle cells and how would they be useful to the cell?
What will be an ideal response?
Skeletal muscle cells require a lot of rapidly available fuel to burn in order to function properly. They also require a lot of oxygen to burn this fuel efficiently. Glycosomes store glycogen that can be quickly converted to glucose, which in turn can be burned to produce ATP. Myoglobin is a chemical much like hemoglobin in blood cells that can store large quantities of oxygen.
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Which part of a thymic lobule contains mature lymphocytes?
A. Trabecula B. Capsule C. Cortex D. Medulla
Natriuretic peptide inhibits ________ reabsorption by the collecting duct, which ________ urine output
A) NaCl; decreases B) Ca2+; increases C) K+; decreases D) K+; increases E) NaCl; increases
Which muscle(s) can contract without the need for nervous stimulation?
A. Skeletal, smooth, and cardiac muscle B. Smooth muscle only C. Skeletal muscle only D. Cardiac muscle only E. Smooth and cardiac muscle
The liver is proximal to the diaphragm
Indicate whether the statement is true or false