Ch 37

7.Describe the main difference between monocot and eudicot seeds.

Monocot has 1 cotyledon eudicot has 2 cotylendons

6.List the steps required for seed germination.

Must have water Enzymes will be activated radicle (first root is activate) shoot will come out leaves come and begin to photosyn stem will come last

Name the parts of a flower and their function

Pistil- female part of the flower Stigma- part of the pistil that the pollen grain lands on. Style- a neck like structure through which the pollen tube grows. Ovary- juglike structure that contains one or more ovules as can develop into a fruit. Receptacle- where all the flower parts are borne. Peduncle-holds up the flower Petal- attracts pollinators Calyx-protects the flower parts when the flower is a bud. Anther- saclike structure where pollen grains form Filament-thin stalk of a stamen. Pollen grains- these grains transfer between one another for reproduction to occur.

Describe the alternation of generation in flowering plants.

They spend a portion of their life in a multicellular haploid stage and a portion in a multicellular diploid stages.

3.Define or describe megaspore; microspore; pollen grain; embryo sac; polar nuclei; double fertilization; ovule; carpel; cotyledon; seed; fruit.

megaspore- the n spore In heterosporous plant that gives rise to a female gametophytes. Microspores- the n spore in heterosporous plant that gives rise to a male gametophyte. pollen grains- the immature male gametophyte of seed plants that produces that produces sperm capable of fertilization. embryo sac- the female gametophyte generation in flowering plants. polar nuclei-one of two n cells in the embryo sac that fuse with a sperm during double fertilization to form the 3n endosperm. Double Fertilization- a process in the flowering plant life cycle in which there are two fertilizations; one fertilization results in formation of a zygote, whereas the second results in formation of endosperm. Ovule- the structure in the plant ovary that develops into the seed following fertilization. carpel-the female reproductive unit of a flower cotyledon- the seed leaf of a plant embryo which may contain food stored for germination. seed-a plant reproductive body consisting of a young, multicellular plant and nutritive tissue, enclosed by a seed coat. Fruit- In flowering plants, a mature, ripened ovary. Fruits contain seeds and usually provide seed protection and dispersal.