BIOCHEM EXAM 4 2025 COMPLETE QUESTIONS With
100% Verified Solutions
law, and mathematics. These disciplines not only have distinct areas of focus but also require unique approaches to assessment, with each exam testing different cognitive abilities, analytical skills, and
subject-specific knowledge. In this essay, we will explore the nature of exams in business, law, and mathematics, their
Which of the following are components of animal fatty acid synthase (FAS)?
Select all that apply. - (ANSWER)-enoyl reductase
-3-hydroxyacyl dehydratase
-malonyl trasacylase
-Beta-ketoacyl synthase
Which of the following molecules regulate the enzyme that catalyzes malonyl-CoA
synthesis? - (ANSWER)-Citrate
- fatty acids or fatty acyl-CoA
Which of the following enzymes does malonyl-CoA regulate? -
(ANSWER)Carnitine acyltransferase
True or False? For chloroplasts, the thylakoid membranes (lamellae) contain the
enzymes responsible for the carbon-fixation reactions. - (ANSWER)False
What structure in chloroplasts contain the enzymes responsible for carbon-
fixation reactions? - (ANSWER)The stroma
In photosystem II, P680 transfers an electron to pheophytin upon excitation by a
photon. How is this electron replaced? - (ANSWER)by the splitting of water
molecules at the manganese center of the oxygen-evolving complex
, law, and mathematics. These disciplines not only have distinct areas of focus but also require unique approaches to assessment, with each exam testing different cognitive abilities, analytical skills, and subject-specific knowledge. In this essay,
we will -explore
Stuvia.com The the nature of examsto
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business,
and law,Sell
and mathematics,
your Study their
Material
In photosystem I, P700 transfers an electron to chlorophyll (A0) upon excitation
by a photon. How is this electron replaced? - (ANSWER)by electrons transferred
from plastocyanin
Paraquat acts by accepting electrons that would otherwise reduce ferredoxin, and
it can accept them from NADPH. The reduced form of paraquat then reacts with
oxygen to form reactive oxygen species (in this case, O2-), which damage
chloroplast lipids and cause plant death. Which of the following can you infer
from this information? - (ANSWER)Paraquat can interfere with the formation or
availability of NADPH.
Which of the following statements about the production of ATP in chloroplasts
are true? Select all that apply. - (ANSWER)-A proton gradient is generated by the
transport of protons into the thylakoid lumen.
-Protons move from the thylakoid lumen to the stroma through ATP synthase,
producing ATP.
Calculate the number of repetitions of the β-oxidation pathway required to fully
convert a 16-carbon activated fatty acid to acetyl-SCoA molecules. - (ANSWER)7
repititions
Calculate the number of acetyl-SCoA molecules generated by complete β
oxidation of a 16-carbon activated fatty acid. - (ANSWER)8 acetyl-SCoA
100% Verified Solutions
law, and mathematics. These disciplines not only have distinct areas of focus but also require unique approaches to assessment, with each exam testing different cognitive abilities, analytical skills, and
subject-specific knowledge. In this essay, we will explore the nature of exams in business, law, and mathematics, their
Which of the following are components of animal fatty acid synthase (FAS)?
Select all that apply. - (ANSWER)-enoyl reductase
-3-hydroxyacyl dehydratase
-malonyl trasacylase
-Beta-ketoacyl synthase
Which of the following molecules regulate the enzyme that catalyzes malonyl-CoA
synthesis? - (ANSWER)-Citrate
- fatty acids or fatty acyl-CoA
Which of the following enzymes does malonyl-CoA regulate? -
(ANSWER)Carnitine acyltransferase
True or False? For chloroplasts, the thylakoid membranes (lamellae) contain the
enzymes responsible for the carbon-fixation reactions. - (ANSWER)False
What structure in chloroplasts contain the enzymes responsible for carbon-
fixation reactions? - (ANSWER)The stroma
In photosystem II, P680 transfers an electron to pheophytin upon excitation by a
photon. How is this electron replaced? - (ANSWER)by the splitting of water
molecules at the manganese center of the oxygen-evolving complex
, law, and mathematics. These disciplines not only have distinct areas of focus but also require unique approaches to assessment, with each exam testing different cognitive abilities, analytical skills, and subject-specific knowledge. In this essay,
we will -explore
Stuvia.com The the nature of examsto
Marketplace in Buy
business,
and law,Sell
and mathematics,
your Study their
Material
In photosystem I, P700 transfers an electron to chlorophyll (A0) upon excitation
by a photon. How is this electron replaced? - (ANSWER)by electrons transferred
from plastocyanin
Paraquat acts by accepting electrons that would otherwise reduce ferredoxin, and
it can accept them from NADPH. The reduced form of paraquat then reacts with
oxygen to form reactive oxygen species (in this case, O2-), which damage
chloroplast lipids and cause plant death. Which of the following can you infer
from this information? - (ANSWER)Paraquat can interfere with the formation or
availability of NADPH.
Which of the following statements about the production of ATP in chloroplasts
are true? Select all that apply. - (ANSWER)-A proton gradient is generated by the
transport of protons into the thylakoid lumen.
-Protons move from the thylakoid lumen to the stroma through ATP synthase,
producing ATP.
Calculate the number of repetitions of the β-oxidation pathway required to fully
convert a 16-carbon activated fatty acid to acetyl-SCoA molecules. - (ANSWER)7
repititions
Calculate the number of acetyl-SCoA molecules generated by complete β
oxidation of a 16-carbon activated fatty acid. - (ANSWER)8 acetyl-SCoA
