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What do pyrenoids contain?...

What do pyrenoids contain?

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### Step-by-Step Solution: 1. **Definition of Pyrenoids**: Pyrenoids are spherical protein structures found within the chloroplasts of certain algae and some land plants, particularly hornworts. 2. **Structure**: They are described as subcellular microcompartments, meaning they are small structures within cells that serve specific functions. 3. **Composition**: Pyrenoids contain protein crystals. These protein crystals are significant as they surround a starch sheath, which is another component of the pyrenoid. ...
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ICSE-PLANT KINGDOM -REVIEW QUESTIONS (VERY SHORT ANSWRE TYPE QUESTIONS)
  1. What do pyrenoids contain?

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  2. Name the pigment that gives brown colour to brown algae.

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  3. Which algae stores carbohydrates as floridean strach?

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  4. Bryophytes show alternation of generation. Which phase is dominant in ...

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  5. Which phase in pteridophytes is diploid in nature?

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  6. Name the male and female organs in a fern.

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  7. What is the association between the roots of Pinus with fungi called a...

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  8. How many male gametes does each pollen grain contains?

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  9. Name the group of plants in which seeds are not enclosed in an ovary.

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  10. Name the group of plants that include mosses and liverworts.

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  11. Chondrus, Porphyra and Celidium are examples of which group of algae?

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  12. Name the first stage in moss that develops directly from the spore.

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  13. The underside of the frond of a fern, small brown dots appear close to...

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  14. Give 2 characteristics of long shoots of the Pinus plant.

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  15. What is another name of microsporangia?

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  16. Pinus plant has 1st year, 2nd year and 3rd year cones. In which cone ...

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  17. Seeds develop from which part of the flower?

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  18. A plant leaf shows reticulate venation. What kind of roots would it ha...

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  19. The endsperm of a plant is haploid, diploid or triploid.

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  20. In which year cone in a Pinus plant does fertilisation occur?

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