Alternation of Generation (Plants and Algae)

Question 1

Plants have a life cycle that alternates between a multicellular haploid organism and a multicellular diploid organism.

Answer 1

Alternation of Generation

Question 2

multicellular diploid stage.

Answer 2

SPOROPHYTE

Question 3

Meiosis in the ________ produces haploid cells called spores.

Answer 3

SPOROPHYTE

Question 4

Cells of the gametophyte give rise to gametes by mitosis.

Answer 4

GAMETOPHYTE

Question 5

Fusion of two haploid gametes at fertilization results in a diploid zygote, which develops into the next sporophyte generation.

Answer 5

GAMETOPHYTE

Question 6

Life cycle of an Angiosperm (in order)

Answer 6

1. The megasporocyte divides by meiosis, producing 4 megaspores.
2. Each microsporocyte from microsporangium divides by meiosis, producing four microspores
3. A microspore develops into a pollen grain. Generative cell of gametophyte will divide forming two sperm. Tube cell will produce pollen tube.
4. Each pollen tube elongates through the style. when reaching an ovule, it discharges two sperm
5. Double Fertilization occurs. One sperm fertilizes the egg, forming a zygote. other sperm fertilizes the central cell, forming the endosperm
6. The zygote develops into an embryo that is packaged along with food into a seed
7. When a seed germinates, the embryo develops into a mature sporophyte.