If the free energy change ?G for a reaction is -46.11 kJ/mol, the reaction is:
A) at equilibrium.
B) endergonic.
C) endothermic.
D) exergonic.
E) exothermic
Ans: D) exergonic.
You might also like to view...
Lipid molecule composed of one glycerol and three fatty acids that can be saturated, unsaturated, or polyunsaturated.
A) Polarity B) Compound C) Denaturation D) Monosaccharides E) Hydrogen bonds F) Element G) Triglycerides H) Amino acids I) Tertiary structure J) Active site
Nitrogen has a higher electronegativity than hydrogen. As a result you would expect that ammonia (NH3 ) molecules can form ____ with each other.
A. ionic bonds B. hydrophilic bonds C. hydrogen bonds D. cohesive bonds E. covalent bonds
What is the function of urea reabsorption in the collecting ducts of the kidney?
A) It restores the correct concentration of blood urea. B) It increases the osmotic concentration of the interstitial fluid in the renal medulla so that more water can be extracted from the urine. C) It reduces the salinity of the renal medulla and thus helps regulate how much water is reabsorbed from the urine. D) It moves the urea into the ascending limb of the loop of Henle so that it can be excreted from there in the urine.
What is the role of the nuclear localization sequence in a nuclear protein?
(a) It is bound by cytoplasmic proteins that direct the nuclear protein to the nuclear pore. (b) It is a hydrophobic sequence that enables the protein to enter the nuclear membranes. (c) It aids in protein unfolding so that the protein can thread through nuclear pores. (d) It prevents the protein from diffusing out of the nucleus through nuclear pores.