Digestion allows the body's cells to convert food energy into the high-energy ATP molecules that run the cell's machinery
a. True
b. False
Indicate whether the statement is true or false
True
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Which of the following parts of a reflex arc would have a cell body in the posterior root ganglion?
a) Sensory receptor cell b) Sensory neuron c) Motor neuron d) Effector e) Interneuron
One advantage of signaling pathways involving the generation of second messengers has compared to a signaling pathway that utilizes the influx of ions is
a. the former are much faster in terms of generating cellular responses to first messengers. b. the former are slower in terms of generating cellular responses, allowing cells to be more circumspect in their response to chemical signals. c. the former require less first messenger to elicit a response, since they allow for signal amplification. d. the former require more first messenger to elicit a response, allowing for more rapid termination of the signaling event. e. none of these.
The floor of the orbit is formed by the sphenoid bone.
Answer the following statement true (T) or false (F)
Carbon dioxide levels in the blood and blood pH are _______.
A) inversely proportional to each other B) directly proportional to each other C) directly proportional to the amount of oxygen D) independent of each other