Questions · Page 2 of 2

[1 Marks Each] QUE - ANS

MCQ 521 Mark
You are shown three branches of a rose in Fig one will help you best to recognize the plant?

Rose:
  1. A leafless branch.
  2. A branch with leaves.
  3. A branch with leaves and flowers.
  • A
    A leafless branch.
  • B
    A branch with leaves.
  • A branch with leaves and flowers.
Answer
Correct option: C.
A branch with leaves and flowers.
A branch with leaves and flowers.
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Question 541 Mark
Write the functions of sepals and petals.
Answer
Functions of sepals: Sepals protect the inner parts of flower when it is a bud.
Function of petals: Petals attract the insects which are the agencies of pollination by colour and fragrance.
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Question 551 Mark
What is photosynthesis?
Answer
Leaves prepare their food in presence of sunlight by using water and $CO_2$.This is called photosynthesis.
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Question 571 Mark
What do you mean by a complete and an incomplete flower?
Answer
The flower with all whorls, i.e., sepals, petals, stamen and carpel in it is a complete flower.
If any one of these is absent in a flower, it is called an incomplete flower.
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Question 591 Mark
Where is food stored in plant and in what form?
Answer
Food is stored in plant in leaves and in some plants in roots. Food is stored in plants in the form of starch.
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Question 601 Mark
What is a fruit? How does it differ from a seed?
Answer
After fertilization, the ovary of the flower gets stimulated by the action of seed and forms the fruits, like mango, orange, etc. Embryo surrounded by a hard wall is called the seed.
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Question 611 Mark
Pitcher plant has green leaves which can prepare food by photosynthesis then why does it eat insects?
Answer
Pitcher plant eats insects to get nitrogenous compounds which it neither synthesizes nor can absorb from the soil.
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Question 631 Mark
Activity.Put a leaf under a white sheet of paper or a sheet in your notebook. Hold it in place as shown in the figure. Hold your pencil tip sideways and rub it on the portion of the paper having the leaf below it. Did you get an impression wuth some lines in it? Are they similar to those on the leaf?
Answer
Yes, an impression with some lines in it is on the leaf. obtained. They are similar to those.
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[1 Marks Each] QUE - ANS - Page 2 - Science STD 6 Questions - Vidyadip