20 Questions
During which state are ingested nutrients entering the blood from the GI tract?
Absorptive state
What is the main substrate that the CNS is reliant on for metabolism?
Glucose
Which organ is the major triacylglycerol store in the body?
Adipose
What happens during the postabsorptive state?
GI tract is empty and energy is supplied by body stores
Where does excess glucose get converted to fatty acids?
Liver
What is the primary reason for the need for fuel homeostasis?
To ensure sporadic intake of food aligns with constant tissue nutrient requirements
During which state are ingested nutrients entering the blood from the GI tract?
Absorptive state
Which organ serves as the major glycogen store in the body?
Liver
What is the primary metabolic substrate that the CNS relies on?
Glucose
Which process occurs when the GI tract is empty and energy is supplied by body stores?
Postabsorptive state
Glucose homeostasis ensures that plasma glucose is maintained between 5mM and 10mM in normal adult humans, primarily to meet the energy demands of the ________.
CNS
During the absorptive state, carbohydrate is absorbed as ________, or converted to glucose.
glucose
The liver serves as a major ________ store in the body.
glycogen
During the postabsorptive state, energy is supplied by body ________.
stores
The digestive system absorbs fat through lymphatics in ________.
chylomicrons
What are the main substrates absorbed during the absorptive state meal?
carbohydrate, protein, fat
What are the three major organs involved in fuel homeostasis?
liver, adipose, muscle
What are the two states of nutrient utilization in the body?
absorptive and postabsorptive
What is the primary metabolic substrate that the CNS relies on?
glucose
What is the normal range for maintaining plasma glucose in adult humans?
5mM and 10mM
Test your knowledge on the importance of fuel homeostasis and glucose regulation in the human body, including the absorptive and post-absorptive states, CNS reliance on glucose, and glucose homeostasis. Explore the factors contributing to the need for maintaining plasma glucose levels and the transportation and uptake of glucose by tissues.
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