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What four cells make up the pollen grain in Conifers? Are coniferous sperm flagellated? Where does fertilization...

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Biology

  1. What four cells make up the pollen grain in Conifers?

  1. Are coniferous sperm flagellated?

  1. Where does fertilization occur and what structure becomes aseed in pine trees?

  1. Explain double fertilization

  1. Name the structures that precede the ones listed in the lifecycle of a seed plant.
  1. ____________ Female gametophyte

  1. ____________ Male gametophyte

c. _____________Adult sporophyte

  1. What are the three parts of a seed in angiosperm

  1. Compare conifers to flowering plants by completing thefollowing table:

DominantGeneration

Vascular Tissue (Present orAbsent)

Dispersal ofOffspring

Fruit (Present orAbsent)

Conifer

Flowering plant

  1. Compare the location of the ovule in the pine and the floweringplant.

  1. What is the difference between pollination andfertilization?

Answer & Explanation Solved by verified expert
3.6 Ratings (557 Votes)
Ans1 Four cells that make up the pollen of conifers are two prothallial cells one generative cell and one tube cell After pollination the prothallial cell degenerates while the tube cell develops into pollen tube and the generative cell divides mitotically to produce a sterile cell and a spermatogenous cell which divide prior to fertilisation to produce two male gametes Ans2 Conifers    See Answer
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