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Heme Synthesis

by Kevin Ahern, PhD
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    About the Lecture

    The lecture Heme Synthesis by Kevin Ahern, PhD is from the course Amino Acid Metabolism.


    Included Quiz Questions

    1. It starts with glycine and succinyl-CoA.
    2. It begins with a cytoplasmic enzyme.
    3. It begins with the incorporation of carbon dioxide.
    4. None of the answers are true.
    5. All of the answers are true.
    1. ...two glycines and two succinyl-CoAs would be required.
    2. ...a ring structure is destroyed.
    3. ...the enzyme is actually stimulated by heavy metals.
    4. None of the answers are true.
    5. All of the answers are true.
    1. Ammonia is released during this process.
    2. six glycines and six succinyl-CoAs would be required
    3. increased production results in a type of porphyria
    4. All of the answers are true.
    5. None of the answers are true.
    1. It is the first cyclic intermediate in heme synthesis.
    2. Its synthesis requires input of water.
    3. It is in excess with congenital erythropoietic porphyria.
    4. All of the answers are true.
    5. None of the answers are true.
    1. None of the answers are true.
    2. It decarboxylates coproporphyrinogen III.
    3. It is a methodical enzyme, working very slowly.
    4. It uses four carbon dioxide molecules.
    5. All of the answers are true.
    1. The enzyme catalyzing its formation is in the mitochondrion.
    2. Two molecules of coproporphyrinogen III are used during this process.
    3. The enzyme uses magnesium in catalysis.
    4. All of the answers are true.
    5. None of the answers are true.
    1. All of the answers are true.
    2. It is a precursor of heme and chlorophyll.
    3. It is formed in an oxidation reaction.
    4. It is formed in a reaction catalyzed by an inner mitochondrial enzyme.
    5. None of the answers are true.
    1. It requires electronic rearrangement for its final form.
    2. All of the answers are true.
    3. It is formed by catalysis of ferrocatalase.
    4. It is formed as Heme C and other hemes are made from it.
    5. None of the answers are true.

    Author of lecture Heme Synthesis

     Kevin Ahern, PhD

    Kevin Ahern, PhD


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