Evolution of Seed Plants Quiz

Seed Plants

• The primary function of a seed is to nurture and protect the embryo of a seed plant.
• The phylum of extant seed plants that includes non-flowering plants is Gymnosperms.

Reproduction in Angiosperms

• The main function of the carpel is to produce ovules and protect the embryo sac.

Pine Reproduction

• The process by which male gametophytes develop in pine reproduction is called microsporogenesis.
• The male gametophyte develops from the microspores of a pine.

Double Fertilization

• During double fertilization in angiosperms, one sperm fertilizes the egg, while the other sperm fertilizes the central cell, resulting in a triploid endosperm.

Seed Structure

• The function of the integument in seed plants is to protect the ovule and develop into the seed coat.

Gymnosperms

• The type of seed plant that lacks flowers and has the ovule exposed on a scale is a Gymnosperm (e.g., conifers).
• The main product obtained from conifers is wood, resin, and turpentine.

Angiosperm Carpels

• The three major regions of the carpel in angiosperms are the stigma, style, and ovary.

Test your knowledge on the evolution and characteristics of seed plants, including the development of seeds, protection of embryos, and the role of fruits in dispersal.