TCA

Identify the enzyme active at reaction CAC-5

• succinate dehydrogenase

• fumarate hydratase

• isocitrate dehydrogenase

• alpha-ketoglutarate dehydrogenase

• succinyl-CoA synthetase

Identify the enzyme active at reaction CAC-7

• succinate dehydrogenase

• fumarate hydratase

• isocitrate dehydrogenase

• malate dehydrogenase

• succinyl-CoA synthetase

This reaction of the Citric Acid Cycle converts GDP to GTP and it also frees coenzyme A. What part of the Citric Acid Cycle conversion is this?

• Succinate to Succinyl CoA

• Succinyl CoA to Succilate

• Succilate to Succinyl CoD

• Succinyl CoA to Succinate

Where does the "addition of a water molecule rearranges bonds in the substrate" happen in the citric acid cycle?

• Succincyl coA -----> Succinate

• Citrate -----> Isocirate

• Fumarate -----> Malate

• Malate -----> Oxaloacetate

Where does the Citric acid cycle takes place?

• Golgi apparatus

• Rough endoplasmic reticulum

• Mitochondria

• Cytoplasm

Which of the following statements about the oxidative decarboxylation of pyruvate is correct?

• The oxidative decarboxylation of pyruvate forms Acetyl-CoA which is fed into the citric acid cycle

• The oxidative decarboxylation of pyruvate formed in aerobic glycolysis occurs in the cytosol

• The oxidative decarboxylation of pyruvate is catalyzed by the enzyme pyruvate decarboxylase

• The oxidative decarboxylation of pyruvate is reversible since there is a large decrease of free energy in the reaction

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

How many Carbon does oxaloacetate have?

• 2

• 4

• 5

• 6

How many carbons does oxaloacetate have?

• 6

• 2

• 4

• 3

in which organelle does the krebs cycle takes place?

• cytoplasm

• nucleus

• mitochondria

• peroxisome

Tags

NGSS.HS-LS1-7

In Kreb's cycle, succinate and FADH2 come together to form fumarate. What type of chemical reaction is responsible for this step in the cycle?

• Decarboxylation

• Isomerization

• Dehydration

• Oxidation