Which of the following channels opening contribute to the repolarization of the ventricular muscle fibers?

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#Question id: 30067

#Unit 7. System Physiology – Animal

Which of the following neurotransmitter released at the sympathetic endings?

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#Question id: 24225

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the incorrect option

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#Question id: 28043

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statement holds true for the hydrogen and hydrophobic interaction in protein folding 

(1) The Hydrophobic Effect Has the minimal Influence on Protein Stability

(2) The Hydrophobic Effect Has the Greatest Influence on Protein Stability

(3) Hydrogen bonds, which are central features of protein structures, make only minor contributions to protein stability

(4) Hydrogen bonds, which are central features of protein structures, makes major contributions to protein stability

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#Question id: 31368

#Unit 5. Developmental Biology

In which condition a stem cell stabilize the stem cell pool as well as generate a daughter cell that goes on to differentiate?

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#Question id: 73

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the Variation of Reaction Spontaneity (Sign of ΔG) given in Column I with the Signs of ΔH and ΔS given in column II.

COLUMN I	COLUMN II
	ΔH	ΔS	ΔG = ΔH – TΔS
1.	−	+	a. The reaction is both enthalpically and entropically opposed. It is nonspontaneous (endergonic) at all temperatures.
2.	−	−	b. The reaction is enthalpically opposed (endothermic) but entropically favored. It is spontaneous only at temperatures above T = ΔH/ΔS.
3.	+	+	c. The reaction is enthalpically favored but entropically opposed. It is spontaneous only at temperatures below T = ΔH/ΔS.
4.	+	−	d. The reaction is both enthalpically favored (exothermic) and entropically favored. It is spontaneous (exergonic) at all temperatures.