What is the correct statement below? a. The BBB displays great permeability to lipid soluble molecules

b. Neurons oxidize most of the substrate they use for energy production

c. Brain produces and utilizes ketones when glucose is scarce

d. After an overnight fast, the brain is deprived of glucose

e. Brain metabolism increases and reduces under resting and exercising conditions, respectively

c. Brain produces and utilizes ketones when glucose is scarce

Explanation:

Yes, brain utilizes ketones when glucose is present in low concentration because ketones also provides energy to the body. Glucose is the primary material which is used by the brain but when glucose is not available, the brain uses ketones such as β-hydroxybutyrate (βHB) and acetoacetate (AcAc) in order to fulfill its requirement in the fasting and prolonged starvation so we can conclude that our brain uses ketones in the absence of glucose.

answer:

gygu hj j uy   b

explanation:

08: 21

read the excerpt from "the tell-tale heart.”

object there was none. passion there was none. i loved the old man. he had never wronged me. he had never given me insult. for his gold i had no desire. i think it was his eye! yes, it was this! he had the eye of a vulture—a pale blue eye, with a film over it. whenever it fell upon me, my blood ran cold; and so by degrees—very gradually—i made up my mind to take the life of the old man, and thus rid myself of the eye forever.  

read the excerpt from "the black cat.”

beneath the pressure of torments such as these, the feeble remnant of the good within me succumbed. evil thoughts became my sole intimates—the darkest and most evil of thoughts. the moodiness of my usual temper increased to hatred of all things and of all mankind; while, from the sudden, frequent, and ungovernable outbursts of a fury to which i now blindly abandoned myself, my uncomplaining wife, alas! was the most usual and the most patient of sufferers.

by revealing the narrator’s deepest thoughts, the author

answer:

yes

Explanation: