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Science Do as instructed[3 M]

Plants: Structure and Function · Maharashtra Board STD 7 (MSBSHSE - Semi English Medium). 6 questions.

Questions

Do as instructed[3 M]

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6 questions · self-marked practice — reveal the answer and mark yourself.

Question 13 Marks
Observe the figure and answer the questions given.
Image
1.Lable parts 1 to 6.
2.Name the female reproductive part.
3.Name the colourful part of the flower.
4.Which part develops into fruit?
5.Which pa pollination?
Answer
1.

  1. Gynoecium or carpel
  2. Corolla
  3. Androecium (Stamen)
  4. Ovary
  5. Corolla
  6. Pedicel

2.Gynoecium
3.Corolla
4.Ovary
5.The transfer of pollen grains from the anther to the stigma of flower is called pollination.

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Question 23 Marks
Observe the figure and answer the questions given.
Image
1.What is shown in the picture?
2.What arrangement is shown in (A), (B), and (C)?
Answer
1.The picture shows the arrangement of leaves on the stem.
2.(A) Alternate (B) Opposite (C) Whorled
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Question 63 Marks
Certain properties are mentioned below. Find a leaf corresponding to each property and describe those plants.
Answer
  1. Leaves with smooth surface: e.g. Banana leaf. It is large in size. It is closely rolled up one over the other. Together they look like a trunk but they form only an apparent trunk. It has parallel venation.
  2. Leaves with rough surface: e.g. Hibiscus leaf. It has reticulate venation. Leaf margin is toothed.
  3. Fleshy leaf: e.g. Jade plant, water hyacinth. It has fleshy, glossy and smooth leaves. They are coloured jade green and having a slightly red tinge towards the edge of leaves when exposed to higher level of light.
  4. Spines on leaf: e.g. Opuntia, Cycas, kevda. Opuntia is a desert plant. Leaf is thick, fleshy and having spines on it.
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