Life Cycle of FernBy: Alyssa Denise R.Vicera

Word Box

Give the definition of the following words:

1. Fertilization

2. Zygote

3. Meiosis

4. Embryo

5. Mitosis

Alternation of Generations

It is also known as alternation of phases or metagenesis. This is the cycle of reproduction in which a haploid gametophyte alternates with a diploid sporophyte.

Words To Remember

Sorus

It is the cluster of sporangia.

Sporangium/Sporangia

It is an enclosure in

which spores are formed.

Gametophyte (Prothallus)

It is the haploid, multicellular phase of plants and algae that undergo

alternation of generations, with each of its cells containing

only a single set of

chromosomes.

Sporophyte

It is the diploid form of plants that have alternation of generations. It develops from a zygote and produces asexual spores.

Rhizoids

These are thread-like growths from the base or bottom of a plant,

found mainly in lower

groups such as algae,

fungi, bryophytes and

pteridophytes, that

functions like roots

of higher plants.

Antheridium

It is a haploid structure or organ producing and containing male gametes called sperm.

Archegonium

It is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete.

The Life Cycle