QUESTION 14 Is the seed of the pine tree a sporophyte or a gametophyte? Gametoph

Question

QUESTION 14

Is the seed of the pine tree a sporophyte or a gametophyte?

Gametophyte

Sporophyte

3.5 points   

QUESTION 15

How does the size of the male and female gametophytes compare to those of ferns and bryophytes?

The male and female gametophytes of gymnosperms are smaller (microscopic) compared to bryophytes and ferns.

The male and female gametophytes of gymnosperms are the same size compared to bryophytes and ferns.

The male and female gametophytes of gymnosperms are bigger compared to bryophytes and ferns.

3.5 points   

QUESTION 16

How many sepals and petals did you have on the flower?

There were 3 sepals and 3 petals.

There were 4-5 sepals and 4-5 petals.

There are more than I could count of sepals and petals

Gametophyte

Sporophyte

Explanation / Answer

14. Seed of pine tree is sporophytic since it germinate to give the sporophytic plant body. Whereas gametophyte is produced during the reproductive phase within the strobilus or cone.

15. The male and female gametophyte of gymnosperms are smaller compared to bryophytes and ferns.

Bryophytes and ferns gametophyte is multicellular but gametophyte is gymnosperms and angiosperms have reduced to few cells. In gymnosperms female gametophyte have 2-3 cells, in angiosperms it has 7 cells.

16. Generally 4-5 sepals and petals are present in typical flower.

Flowers with 4 sepal and petal are called tetramerous and with 5 are called as pentamerous. Even trimerous flowers are present but they have tepals rather than sepals and petals. Where we can not differentiate between sepal and petal.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.