. All of the followings are correct, except----------------------. A. Part of medulla oblongata respiratory centre, respond to changes in [H+] in the brains extracellular fluid B. Basic respiratory rhythm is established by a group of neurons in the medulla oblongata region of the brain C. A rise in temp will increases the O2 solubility in water and reduce the O2 affinity of hemoglobin D. Mature red blood cells do not have mitochondria, and they respire via anaerobic glycolysis. E. Sigmoid shape of the oxygen dissociation curve is due to the Subunit cooperativity 48. All of the followings are correct about Insulin, except------------------- A. It is synthesized in the rough endoplasmic reticulum B. It is processed in glogi apparatus C. It is packaged in vesicles of beta cells of pancreas D. It is a peptide hormone E. It is lipid soluble hormone '49. Hormones become inactivated by ------------------. A. Diffusion out of the bloodstream B. Absorbed or broken down by cells of the liver or kidneys C. Broken down by enzymes in the plasma or interstitial fluid D. All of the above are correct E. Only A and B are correct 50. Which of the followings is incorrect about lipid soluble hormones? A. They have to be carried by a carrier protein while being in circulation B. Their effect persists for days C. They bind to regulatory elements in the DNA D. They diffuse easily through the cell membrane. E. They induce the production of short-lived metabolites.
47. All of the followings are correct, except----------------------.
A. Part of medulla oblongata respiratory centre, respond to changes in [H+] in the brains extracellular fluid
B. Basic respiratory rhythm is established by a group of neurons in the medulla oblongata region of the brain
C. A rise in temp will increases the O2 solubility in water and reduce the O2 affinity of hemoglobin
D. Mature red blood cells do not have mitochondria, and they respire via anaerobic glycolysis.
E. Sigmoid shape of the oxygen dissociation curve is due to the Subunit cooperativity
48. All of the followings are correct about Insulin, except------------------- A. It is synthesized in the rough endoplasmic reticulum
B. It is processed in glogi apparatus
C. It is packaged in vesicles of beta cells of pancreas
D. It is a peptide hormone
E. It is lipid soluble hormone
'49. Hormones become inactivated by ------------------.
A. Diffusion out of the bloodstream
B. Absorbed or broken down by cells of the liver or kidneys
C. Broken down by enzymes in the plasma or interstitial fluid
D. All of the above are correct
E. Only A and B are correct
50. Which of the followings is incorrect about lipid soluble hormones?
A. They have to be carried by a carrier protein while being in circulation
B. Their effect persists for days
C. They bind to regulatory elements in the DNA
D. They diffuse easily through the cell membrane.
E. They induce the production of short-lived metabolites.
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