If the equilibrium constant, Keq, for the reaction ATP → ADP + Pi is 2.22 × 10⁵ M, calculate the standard free-energy change, ΔG°, for the synthesis of ATP from ADP and Pi at 25 °C.

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#Question id: 11568

#XL - T Zoology

In a lactating mammal, the two hormones that promote milk synthesis and milk release, respectively, are ________.

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#Question id: 8937

#XL - R Botany

During metamorphosis, echinoderms undergo a transformation from motile larvae to a sedentary (or sometimes sessile) existence as adults. What differentiates echinoderm adults, but not their larvae? Adults should

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#Question id: 29553

#XL - R Botany

Which part of a plant absorbs most of the water and minerals taken up from the soil?

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#Question id: 2151

#XL - S Microbiology

Which of the following statement(s) is (are) true of transmembrane proteins?

a. All contain a hydrophobic α helix.

b. Some serve as membrane attachment sites for peripheral membrane proteins.

c. Some contain more than one membrane-spanning domain.

d. All are asymmetrically oriented in the lipid bilayer.

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#Question id: 19646

#XL - P Chemistry

Bond length of (I) ethane, (II) ethene, (III) acetylene and (IV) benzene follows the order: