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    Question

    Paragraph for question 21 to 24 Herbicides are chemical substances used to control or kill unwanted plants (weeds). They can be classified into selective herbicides, which target specific plant species without affecting others for example a and non-selective herbicides, which kill all vegetation they come into contact with. Herbicides can also be categorized by their mode of action, such as contact herbicides, which kill only the plant parts they touch, or systemic herbicides, which are absorbed and transported throughout the plant, killing it entirely.

    Which of the following is an example of a systemic

    herbicide?
    A Paraquat Correct Answer Incorrect Answer
    B Glyphosate Correct Answer Incorrect Answer
    C Bromoxynil Correct Answer Incorrect Answer
    D Diquat Correct Answer Incorrect Answer
    E Oxyfluorfen Correct Answer Incorrect Answer

    Solution

    Glyphosate is a systemic herbicide, meaning it is absorbed by the plant and moves through its tissues, killing it entirely.

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