The text claims that the evolutionary history of protists can be understood as a series of morphological innovations that established seven distinct lineages, each of which subsequently diversified based on innovative ways of feeding, moving, and reproducing. Explain how the Alveolata support this claim.

Which of the following members of the SAR supergroup is incorrectly paired with its clade?a. stramenopiles—brown algaeb. alveolates—parasites such as Plasmodiumc. alveolates—dinoflagellatesd. Rhizaria—diatoms

Based on the phylogenetic tree in Figure 28.2, which of the following statements is correct?a. The most recent common ancestor of Excavata is older than that of SAR.b. The most recent common ancestor of SAR is older than that of Unikonta.c. The most basal (first to diverge) eukaryotic supergroup cannot be determined.d. Excavata is the most basal eukaryotic supergroup.

In step 3 of the citric acid cycle, the enzyme isocitrate dehydrogenase is regulated by NADH. Compare and contrast the regulation of this enzyme with the regulation of phosphofructokinase in glycolysis.

Apply what you know of the relationship between the light-capturing reactions and the Calvin cycle to calculate the number of photons used to produce a new G3P and regenerate RuBP. (Assume 1 ATP is produced for each pair of electrons used to form NADPH.)

Which of the following correctly identify a role of the ATP produced in the light-capturing reactions? Select True or False for each statement.T/F It is used by rubisco to fix CO2 to RuBP.T/F It serves the same role as ATP produced by mitochondria.T/F It is used to regenerate RuBP from G3P molecules.T/F It is used to produce G3P molecules

Draw a chemical equation to represent the redox reaction that occurs when methane (CH4) burns in the presence of oxygen (O2). Identify the reactant that is reduced and the reactant that is oxidized. Of the four molecules that should be in your equation, point out the one that has bonds with the highest potential energy.

Predict how the following conditions would affect the production of O2, ATP, and NADPH and state whether noncyclic or cyclic electron flow would occur in each;(2)blue and red photons hit a chloroplast, but no NADP+ is available

Consider the following:Plasmodium has an unusual organelle called an apicoplast. Recent research has shown that apicoplasts are derived from chloroplasts via secondary endosymbiosis and have a large number of genes related to chloroplast DNA.Glyphosate is one of the most widely used herbicides. It works by poisoning an enzyme located in chloroplasts.Biologists are testing the hypothesis that glyphosate could be used as an antimalarial drug in humans.How are these observations connected?