Pyruvate is the end product of ____.
A. glycolysis
B. acetyl-CoA formation
C. fermentation
D. aerobic respiration
E. the citric acid cycle
Answer: A
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Which of the following statements about the adrenal medulla is false? a. The fight-flight response involves the adrenal medulla
b. The adrenal medulla releases norepinephrine. c. The adrenal medulla releases epinephrine. d. The adrenal medulla contains specialized neurons of the parasympathetic division.
Much of the control of the digestive system originates in the neuron networks of the submucosa
Indicate whether the statement is true or false.
The area of the angle between the stem and the leaf stalk is referred to as the:a
axil. b. blade. c. petiole. d. stipule. e. trichome.
A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?
A) autocrine B) paracrine C) endocrine D) neuroendocrine