These are called the tube cell and the generative cell 3. Eggs develop within ovules , small structures found in the ovaries 2. Ovules contain a central cell surrounded by a protective covering of smaller cells 3. The central cell enlarges and undergoes meiosis to produce four haploid spores a. Three of these degenerate, leaving one large cell 4. The egg is the cell that will be eventually fertilized F. Steps leading to fertilization 1.
Pollination occurs when pollen is delivered to the stigma of a carpel a.
Remember that this is a sticky substance on the end of the stalk, called the carpel, the base of which houses the ovary 2. The tube cell of the pollen grain will give rise to the pollen tube a. This grows toward the egg in the ovule 3. The generative cell divides mitotically, creating two sperm 4. This will form an embryo ii.