Why do sugars tend to be highly water soluble?
A) because of their large numbers of hydroxyl groups
B) because of their large numbers of methyl groups
C) because of their small molecular weights
D) because of their large numbers of sulfhydryl groups
E) because they have only a few hydroxyl groups
Ans: A) because of their large numbers of hydroxyl groups
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Which of the following is true for ALL exergonic reactions?
A. The products have more total energy than the reactants. B. The reaction proceeds with a net release of free energy. C. Some reactants will be converted to products. D. A net input of energy from the surroundings is required for the reactions to proceed. E. The reactions are nonspontaneous.
A protein is destined to be secreted from a cell. In which organelle would you expect to find the protein just after it is produced in the rough endoplasmic reticulum?
A) endosome B) lysosome C) secretory vesicle D) Golgi apparatus E) nucleus
Hydrophobic messengers include which of the following?
A) retinoids B) cAMP C) pertussis toxin D) calcium ions E) ryanodine
Movement of large molecules into a cell is called ________.
Fill in the blank(s) with the appropriate word(s).