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Consider the following statements and ch...

Consider the following statements and choose the correct option (a) Ovule is attached to the placenta by means of a stalk called filament (b) Ovule fuses with the stalk in the region called hilum (c) The two protective envelopes of the ovule are called integuments (d) The small opening in the tip of ovule is called germ pore

A

a and d

B

a and c

C

b and d

D

b and c.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze each of the statements provided and determine their correctness based on our knowledge of ovule structure in plants. ### Step-by-Step Solution: 1. **Statement A: "Ovule is attached to the placenta by means of a stalk called filament."** - This statement is **incorrect**. The stalk that attaches the ovule to the placenta is called the **funicle**, not the filament. 2. **Statement B: "Ovule fuses with the stalk in the region called hilum."** - This statement is **correct**. The point where the ovule fuses with the funicle (stalk) is indeed referred to as the **hilum**. 3. **Statement C: "The two protective envelopes of the ovule are called integuments."** - This statement is **correct**. The outer layers that protect the ovule are known as the **integuments**. 4. **Statement D: "The small opening in the tip of ovule is called germ pore."** - This statement is **incorrect**. The small opening at the tip of the ovule is called the **micropyle**, not the germ pore. ### Conclusion: Based on the analysis: - **Correct Statements**: B and C - **Incorrect Statements**: A and D Thus, the correct option is **B and C**.
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DINESH PUBLICATION ENGLISH-NO IDEA-Brain Teasers
  1. Consider the following statements and choose the correct option (a) Ov...

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  2. A structure present in the ovule as well as eggs of birds is

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  3. A plant in which fertilization occurs after the shedding of seed is

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  4. In ovule, exostome is

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  5. Group of specialized thickened nucellar cells between embryo sac and c...

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  6. Hypostase is meant for providing

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  7. A group of specialised nucellar cells between embryo sac and micropyle...

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  8. Sasa paniculata contains a large number of antipodal cells. The number...

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  9. Antipodal cells enlarge tremendously in (a) Sasa (b) Caltha (c) Ac...

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  10. Which one develops from funicle of base of ovule? (a) Sarcotesta (b) ...

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  11. Which one develops from exostome

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  12. In tenuinucellate ovules, the nucellus may break down. The nourishment...

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  13. Endothelium develops from (a) Nucellus (b) Nucellus surrounding embr...

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  14. Middle layers of pollen sac wall are absent in

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  15. Growth of pollen tube is

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  16. The apical growing region of pollen tube is called

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  17. Functional part of pollen tube is separated from the rest by

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  18. Pollen tube cytoplasm is like any other living cell in showing (a) Cal...

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  19. Male nucleus fuses with female nucleus during fertilization in Angiosp...

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  20. Which one is true of male gamete of angiosperms

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  21. Heterofertilization is

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