1 / 6

Plant Life Cycles

Plant Life Cycles. Alternation of generation – the process of alternating between asexual and sexual reproduction

kobe
Download Presentation

Plant Life Cycles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Plant Life Cycles

  2. Alternation of generation – the process of alternating between asexual and sexual reproduction • Seedless plants begin by releasing spores that develop into new plants without fertilization. The new adult plant develops male and female structure that join and fertilize to create a new adult plant.

  3. Pollination – the transfer of pollen from the stamen to the pistil • Pollen- a yellow powder that contains the sperm cells • Nectar – sweet liquid produced by flowers to attract pollinators • Self-pollination – a perfect flower with male & female parts pollinates itself • Cross-pollination- pollen from one plant pollinates the flower on another plant

  4. Seeds • Seed has 3 parts • Embryo - the fertilized egg cell developing into a new offspring • Cotyledon-surrounds the embryo and is its food supply • Seed coat – tough outer covering that protects the seed

  5. Germination – the process of the seed developing into a new plant • Monocot- seed with a single cotyledon, parallel vein pattern on leaves, flower petals in groups of three • Dicot – seed with two cotyledons, leaves have a branched vein pattern, flower petals in groups of 4 or 5

  6. Conifers • Conifer – a seed plant with no flowers • Evergreens, pines and firs • Single tree produces male and female cones • Male pollen cells stick to female cones and developing egg remains there as it develops into a seed

More Related