What would be a consequence of a missing or damaged epiglottis?
a. an inability to swallow food
b. digestive acid escaping into the esophagus
c. aspiration of food into the lungs
d. incomplete neutralization of chyme
c. aspiration of food into the lungs
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In order for a substance to transfer a phosphate to ADP in a substrate-level phosphorylation reaction, which of the following must be true?
A. The phosphate donor must have a lower oxidation-reduction potential than ATP. B. The phosphate donor must have a higher oxidation-reduction potential than ATP. C. The phosphate donor must have a higher phosphate transfer potential than ATP. D. The phosphate donor must have a lower phosphate transfer potential than ATP.
A woman's husband is a Type I diabetic. He gives her a pen and tells her to inject him with its contents if he ever passes out due to low blood sugar. What hormone does this pen likely contain?
A. Insulin B. Oxytocin C. Glucagon D. Glycogen
Which of the following statements is true regarding neurotransmitters and synaptic signaling? Select all correct choices
A. All neurotransmitters are also hormones. B. All synaptic signaling is rapid. C. All synaptic signaling occurs between nerve cells. D. All neurotransmitters are released into the blood stream.
Some species of animals in cold environments lower the freezing point of water in their tissues by increasing solutes in their body fluids, especially
A) glucose. B) glycerol. C) salt. D) sucrose.