Plant Responses tropism to Stimuli Tropism a growth

Plant Responses (tropism) to Stimuli Tropism - a growth in response to a s______ Auxin - is a plant h______ which controls the direction of g____. Ethylene – a plant h_____ that controls fruit ripening. Hormone - a regulatory substance produced to ____ cells or tissues into action.

Plant Reproduction (unlike humans) Alternation of Generations – life cycle alternates between d____ and h___ generation Gametophyte vs Sporophyte

Reproduction in Seedless Plants Moss and Ferns – usually grow in _____ environments – sperm must swim through a film of water to reach an egg < - mosses FERNS

Reproduction in Seed Plants Haploid generation is WITHIN d_____ tissue Pollen grain – forms from tissue in a male reproductive structure of a seed plant (s____) Pollination? <- tulip

Reproduction in Seed Plants Ovule – female reproductive structure where H____ egg develops Embryo – an immature diploid plant that develops from a zygote after f______ Seed = an embryo, its food supply, and a p______ c_____

Reproduction in Gymnosperms Why naked?

Reproduction in Angiosperms (Anatomy) Fruits, veggies, flowers, etc.

ANGIOSPERM LIFECYCLE 1) Pollen grains travel by wind, gravity, water, or animal from anther to s____, sperm begin to develop 2) Pollen tube (from grain) grows toward egg in o____, where sperm are released from tube to fertilize egg 3) S____ develops from ovule 4) F____ develops from ovary

Fruit!

Seed Dispersal Even by car…