Briefly state the functions of the rough and smooth endoplasmic reticulum
What will be an ideal response?
The rough endoplasmic reticulum synthesizes glycoproteins, phospholipids and digestive enzymes that are transferred to other cellular organelles, inserted into the plasma membrane, secreted during exocytosis or stored in the lysosomes. The smooth endoplasmic reticulum synthesizes fatty acids and steroids, detoxifies harmful substances, removes phosphate groups from glucose-6-phosphate, and stores and releases calcium ions that trigger contractions in muscle fibers.
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The deepest of the abdominal muscles are the ________ muscles.
A. external oblique B. tendinous intersections C. internal oblique D. transversus abdominis E. rectus abdominis
In the diagram, which labeled structure contains motor proteins that convert the energy in ATP into mechanical movements?
a) C b) A c) E d) D e) None of these are correct.
The organelles that are the “protein factories” for the cell are the:
a. ribosomes b. mitochondria c. Golgi apparatus d. centrioles
In which renal component does urine production begin?
A) renal cortex B) renal medulla C) minor calyx D) renal papilla E) renal pelvis