BIOC 385 - Quiz 9 questions and
answers graded A+
Compared with a normal patient, a person with type 1 diabetes would display __________
during a glucose tolerance test. - correct answer ✔✔higher starting blood glucose level
Metabolic homeostasis relies on maintaining___________________. - correct answer
✔✔optimal metabolite concentrations.
A volunteer with Flying Samaritans brings a small boy to the local physician for treatment. Based
on the background information listed below, what is the most likely biochemical basis for the
boy's symptoms? - correct answer ✔✔1, 25-hydroxyvitamin D3 deficiency
What biochemical marker differentiates insulin-sensitive and insulin-resistant muscle cells? -
correct answer ✔✔High levels of tyrosine phosphorylated IRS-1 in insulin-sensitive muscle cells.
When the ____________ second-order neurons are activated, appetite increases and basal
metabolic rates are decreased. - correct answer ✔✔orexigenic
Glucagon-like peptide-1 (GLP-1) is a hormone peptide secreted by intestinal L cells. It is secreted
in response to the nutrient detection in the small intestine. The resulting physiological response
is the lowering of blood glucose levels. Which of the following is a potential mechanism for how
GLP-1 causes this physiological response? - correct answer ✔✔GLP-1 stimulates insulin release
by pancreatic beta cells to lower blood glucose levels.
Which of the following THREE statements are true regarding neuropeptides and appetite
control? - correct answer ✔✔- Ghrelin stimulates orexigenic signaling by binding to NPY/POMC
neurons.
- Anorexigenic neurons send out signals that increase energy expenditure.
answers graded A+
Compared with a normal patient, a person with type 1 diabetes would display __________
during a glucose tolerance test. - correct answer ✔✔higher starting blood glucose level
Metabolic homeostasis relies on maintaining___________________. - correct answer
✔✔optimal metabolite concentrations.
A volunteer with Flying Samaritans brings a small boy to the local physician for treatment. Based
on the background information listed below, what is the most likely biochemical basis for the
boy's symptoms? - correct answer ✔✔1, 25-hydroxyvitamin D3 deficiency
What biochemical marker differentiates insulin-sensitive and insulin-resistant muscle cells? -
correct answer ✔✔High levels of tyrosine phosphorylated IRS-1 in insulin-sensitive muscle cells.
When the ____________ second-order neurons are activated, appetite increases and basal
metabolic rates are decreased. - correct answer ✔✔orexigenic
Glucagon-like peptide-1 (GLP-1) is a hormone peptide secreted by intestinal L cells. It is secreted
in response to the nutrient detection in the small intestine. The resulting physiological response
is the lowering of blood glucose levels. Which of the following is a potential mechanism for how
GLP-1 causes this physiological response? - correct answer ✔✔GLP-1 stimulates insulin release
by pancreatic beta cells to lower blood glucose levels.
Which of the following THREE statements are true regarding neuropeptides and appetite
control? - correct answer ✔✔- Ghrelin stimulates orexigenic signaling by binding to NPY/POMC
neurons.
- Anorexigenic neurons send out signals that increase energy expenditure.
