A patient undergoes a high level of mast cell degranulation, dilation of blood vessels, and acute drop in blood pressure. These symptoms could be caused by which of the following?

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#Question id: 27210

#Unit 1. Molecules and their Interaction Relevant to Biology

Charge on one mol of electron is approximately equal to

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#Question id: 27211

#Unit 1. Molecules and their Interaction Relevant to Biology

 A biological redox reaction always involves

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#Question id: 27226

#Unit 1. Molecules and their Interaction Relevant to Biology

The Protein Components of the Mitochondrial Electron-Transfer Chain match them correctly with their prosthetic groups 

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#Question id: 27357

#Unit 6. System Physiology – Plant

Chlorophyll can exist in three state in many state which state have no unpaired electron are found

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#Question id: 27358

#Unit 6. System Physiology – Plant

Choose the correct statement regarding singlet and triplet state

1. singlet state is short lived, net angular momentum and spin quantum number, s is zero

2. singlet state is long lived, net angular momentum and spin quantum number, s is one

3. Triplet state is long lived , net angular momentum and spin quantum number, s is one

4. Triplet state is short lived net angular momentum and spin quantum number, s is zero

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#Question id: 27374

#Unit 13. Methods in Biology

An aqueous solution contains two compounds X and Y. This solution gave absorbance values of 1.0 and 0.4 at 220 and 280 nm, respectively, in a 1 cm path length cell. Molar absorption coefficients (ε) of the compounds X and Y are as shown in the table below.

The concentration of Y in the solution is___________ mM.