Mitochondria engage in aerobic cellular respiration to complete the digestion of fuel molecules to allow for transfer of energy for the synthesis of ATP
Indicate whether this statement is true or false.
TRUE
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Developing sperm cells are protected by a blood-testis barrier formed by
A. connective tissue septa. B. interstitial spaces. C. Leydig cells. D. sustentacular cells. E. leukocytes.
Animals known as cud chewers have which type of digetive system?
a. monogastric c. nonruminant b. ruminant d. avian
Capillaries with a perforated lining are called
A) perforated capillaries. B) discontinuous capillaries. C) fenestrated capillaries. D) sinuses. E) vasa vasorum.
An investigator places an isolated neuron in a calcium-free medium. They give the neuron a suprathreshold stimulus and then perform an assay to test whether neurotransmitter is released into the medium. Which of the following outcomes would you predict?
a. No neurotransmitter is detected since influx of calcium into the synaptic knob is required for neurotransmitter release. b. No neurotransmitter is detected since influx of calcium is required in order for the neuron to conduct an action potential. c. Neurotransmitter is detected since calcium is not required for action potential conduction and the initial stimulus was suprathreshold. d. We cannot predict the outcome without knowing whether the neuron was myelinated. e. None of these.