1. 'Betamix B' is a herbicide produced by the drug company Bayer. The chemical is designed to kill broadleaf weeds, but not the plant that farmers want to grow and produce a bountiful harvest/yield → e.g. sugar beet and strawberry. Betamix B helps these two plants by binding to the PQ (plastoquinone) molecules of certain weeds and stopping them from passing electrons in a certain membrane. Describe how blocking this shuttle/carrier molecule from performing its job will eventually kill the weed, and refer to the two types of light dependent electron pathways PQ is involved in. Do not feel that you need to mention each electron shuttle molecule in the redox reactions. If you wish, sketch a diagram to help explain your answer.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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1. 'Betamix B' is a herbicide produced by the drug company Bayer. The chemical is designed to kill broadleaf weeds, but
not the plant that farmers want to grow and produce a bountiful harvest/yield → e.g. sugar beet and strawberry. Betamix B
helps these two plants by binding to the PQ (plastoquinone) molecules of certain weeds and stopping them from passing
electrons in a certain membrane. Describe how blocking this shuttle/carrier molecule from performing its job will
eventually kill the weed, and refer to the two types of light dependent electron pathways PQ is involved in. Do not feel that
you need to mention each electron shuttle molecule in the redox reactions. If you wish, sketch a diagram to help explain
your answer.
Transcribed Image Text:1. 'Betamix B' is a herbicide produced by the drug company Bayer. The chemical is designed to kill broadleaf weeds, but not the plant that farmers want to grow and produce a bountiful harvest/yield → e.g. sugar beet and strawberry. Betamix B helps these two plants by binding to the PQ (plastoquinone) molecules of certain weeds and stopping them from passing electrons in a certain membrane. Describe how blocking this shuttle/carrier molecule from performing its job will eventually kill the weed, and refer to the two types of light dependent electron pathways PQ is involved in. Do not feel that you need to mention each electron shuttle molecule in the redox reactions. If you wish, sketch a diagram to help explain your answer.
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