General Definitions

Question 1

Alternation of Generations

Answer 1

Alternating phases in a plants life cycle that differ in both chromosome number and type of reproductive cell

Question 2

Sporophyte (2N)

Answer 2

In alternation of generations, the plant in which meiosis occurs and which thus produces meiospores

Question 3

Gametophyte (N)

Answer 3

In alternation of generations, the gamete producing plant

Question 4

Spore (N)

Answer 4

A reproductive cell

Question 5

Sporangium (2N)

Answer 5

Spore Case

Question 6

Gametangium (N)

Answer 6

Cell or multicellular structure in which gametes are formed

Question 7

Antheridium (N)

Answer 7

Multicellular sperm-producing gametangium consisting of spermatogenous tissue and a sterile jacket of cells
~type of gametangium

Question 8

Archegonium(N)

Answer 8

Multicellular egg bearing gametangium with a jacket of sterile cells
~type of gametangium

Question 9

Oogamous

Answer 9

one gamete is larger and non-motile (egg) the other is smaller and motile (sperm)

Question 10

Zygotic Meiosis

Answer 10

Haploid phase dominates with only a short diploid phrase

Question 11

Gametic Meiosis

Answer 11

Diploid phase dominates as zygote develops as 2N. Very short haploid phase

Question 12

Isomorphic Generations

Answer 12

Equal diploid and haploid phases

Question 13

Sporic Meiosis

Answer 13

includes a bit of haploid and diploid - in general the alternation of generations