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Getting To Know Plants Test - 13

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Getting To Know Plants Test - 13
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  • Question 1
    1 / -0
    Endomycorrhizae forms ........ inside the roots.
  • Question 2
    1 / -0
    Which part of the plant shows negative phototropism?
    Solution
    A. Root
    Reason: Negative phototropism is growth away from light. So roots bend away from the light source and show negative phototropism.
  • Question 3
    1 / -0
    The part of fems which help them to survive forest fire are:
    Solution
    A. Roots
    Solution : During a forest fire the ferns' leaves and shoot gets burned and the plant almost dies. But the anchored root in the soil is not damaged. It absorbs the water and helps the fern to regrow over the soil.
    So the correct answer is " Roots".
  • Question 4
    1 / -0
    Which stain do you use to observe onion root cells ?
    Solution
    B. Acetocarmine

    EXPLANATION: Acetocarmine is a non-specific nuclear stain. It is a saturated solution of carmine in 45% acetic acid. This stain is used for microscopic studies to enhance the contrast of specific biological components in a sample. Acetocarmine is especially used to stain chromosomes apart from the cytoplasm and also used to visualize chromosomes in mitotic studies. This is a dye obtained from insects. 
  • Question 5
    1 / -0
    Root hair are present in
    Solution
    Root hairs are present in zone of maturation.
    So correct option is option C.

  • Question 6
    1 / -0
    Which of the following is a characteristic of shrubs?
    Solution
    Shrubs are average sized plants that have hard but thin stems and branches near the base of the stem. Herbs have green slender stems and no branches.
    Hence the correct option is B.
  • Question 7
    1 / -0
    Plants that do not possess branches are
    Solution
    Herbs are very short plants with green tender stems. They usually do not possess branches.
    Hence the correct option is A.
  • Question 8
    1 / -0
    Plants which grow on a support are called
    Solution
    Plants with weak stems that cannot stand upright but spread on the ground are called creepers, while those that take support and climb up are called climbers. These are different
    from the herbs, shrubs and trees.
    Hence the correct option is B.
  • Question 9
    1 / -0
    Plants with weak stems and which crawl on the ground are
    Solution
    Creepers are plants with weak stems and which are found crawling on the ground. Climbers also have weak stems but they climb up on a support. Herbs have green tender stems that grow upright,
    Hence the correct option is A.
  • Question 10
    1 / -0
    Plants which have branches near the base of the stem are ______________.
    Solution
    Shrubs are average sized plants. They have a hard but thin stem. They possess branches but these are towards the base of the stem.
    Hence the correct option is B.
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