Practice Questions

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#Question id: 2207

Why was it unexpected that transporter proteins are required for transmembrane fatty acid transport?

#XL - Q Biochemistry

because these molecules are too small for their diffusion to be impeded by membranes
because it is the cytosolic fatty acid binding-protein–fatty acid complex that is the actual transported complex
because these molecules are sufficiently hydrophobic to diffuse across membranes
because triglycerides carried by lipoproteins were thought to be the only source of fatty acids in the circulation

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#Question id: 18522

#XL - R Botany

Atropine used at the time of eye testing is obtained from the leaves of

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#Question id: 11088

#XL - T Zoology

At a fraternity party a 17-year-old male places a paper bag over his mouth and breathes in and out of the bag. As he continues to breathe into this bag, his rate of breathing continues to increase. Which of the following is responsible for the increased ventilation?

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#Question id: 20134

#XL - P Chemistry

Calculate the heat of formation of benzene from the following data, assuming no resonance. Bond energies :

C – C = 83 kcal = 140 kcal C – H = 99 kcal

Heat of atomisation of C = 170 .9 kcal

Heat of atomisation of H = 52.1 kcal

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#Question id: 20077

#XL - P Chemistry

Which of the following compound possesses ionic bond ?

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