What is NOT required for glycolysis to occur?
A) enzymes B) mitochondrion C) phosphate group D) ATP
Answer: B
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In examining a male patient you place your finger in his superficial inguinal ring and ask him to cough. You then feel a sudden impulse medial to your finger. You conclude that your patient most likely has:
A) a femoral hernia. B) a direct inguinal hernia. C) an undescended testis. D) a supravesical hernia. E) testicular cancer. Ans: B
Rigor mortis affects skeletal muscles a few hours after death, due to
A) a decrease in ATP and increased permeability to calcium. B) an increase in ATP and decreased permeability to calcium. C) an increase in ATP. D) impulses that produce sustained contractions.
Arthropod muscle differs from vertebrate muscle in that
a. a single muscle fiber may be innervated by multiple motor neurons. b. a single motor neuron forms multiple synapses (multiterminal innervation) with a single muscle fiber. c. development of muscle tension is modulated by inhibitory presynaptic inputs. d. muscle fibers are innervated by both excitatory and inhibitory neurons. e. All of these.
The proximal convoluted tubule is lined with a
A. cuboidal epithelium with a large surface area. B. simple squamous endothelium that makes a slick surface. C. simple columnar epithelium with a slick smooth surface. D. stratified squamous epithelium with a tough, durable surface. E. stratified squamous epithelium with a large surface area.