26. Prokaryotes
Prokaryotic Diversity
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- Multiple ChoiceWhich of the following groups of prokaryotes is classified as a member of the domain Archaea?565views1rank
- Multiple ChoiceWhich subgroup of proteobacteria contains many species that are closely associated with eukaryotic hosts in mutualistic or parasitic relationships?616views
- Multiple ChoicePortions of the genomes of certain prokaryotic species are very similar to portions of the genomes of distantly related prokaryotes. The process that most likely accounts for this genetic similarity is __________.734views
- Multiple ChoiceWhich group of bacteria is unusual in that they lack peptidoglycan in their cell walls?618views
- Textbook Question
Which of the following correctly describe an exergonic reaction? Select True or False for each statement. T/F The products have lower Gibbs free energy than the reactants. T/F Activation energy is required for the reaction to proceed. T/F The products always have lower entropy than the reactants. T/F The reaction always occurs quickly.
1049views - Textbook QuestionWhich of the following statements is not true? a. Archaea and bacteria have different membrane lipids. b. The cell walls of archaea lack peptidoglycan. c. Only bacteria have histones associated with DNA. d. Only some archaea use CO2 to oxidize H2, releasing methane.875views
- Textbook Question
How does pH affect enzyme-catalyzed reactions? a. Protons serve as substrates for most reactions. b. Energy stored in protons is used to drive endergonic reactions. c. Proton concentration increases the kinetic energy of the reactants, enabling them to reach their transition state. d. The concentration of protons affects an enzyme's folded structure and reactivity.
1208views - Textbook Question
What factors determine whether a chemical reaction is spontaneous or not?
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