Domain Eukarya Kingdom Protista Kingdom Fungi Kingdom Plantae Most unicellular, some colonial Lack strong tissue development Aqueous, marine, or very humid environments Mostly multicellular, all heterotrophs (yeast = unicellular) Obligate symbionts Cell walls contain chitin Hyphae, mycelium Found in air, water, & terrestrial habitats Multicellular autotrophs (photosynthesis) Chlorophyll Cell walls contain cellulose Nonmotile Adapted for life on land Alternation of generations
Domain Eukarya. Review. Haploid: having 1/2 the number of chromosomes. Diploid: having a full complement of chromosomes (2n). Meiosis: cell division where chromosome number is reduced from diploid to haploid . - PowerPoint PPT Presentation
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Domain Eukarya
Kingdom Protista
Kingdom Fungi
Kingdom Plantae
Most unicellular, some colonial
Lack strong tissue development
Aqueous, marine, or very humid environments
Mostly multicellular, all heterotrophs(yeast = unicellular)
Obligate symbionts
Cell walls contain chitin
Hyphae, mycelium
Found in air, water, & terrestrial habitats
Decomposers
Multicellular autotrophs (photosynthesis)
Chlorophyll
Cell walls contain cellulose
Nonmotile
Adapted for life on land
Alternation of generations
Haploid: having 1/2 the number of chromosomes.
Diploid: having a full complement of chromosomes (2n).
Meiosis: cell division where chromosome number is reduced from diploid to haploid.
Fertilization: nuclei of two gametes fuse, raising the chromosome number from haploid to diploid.
Review
Your life cycle:
You are diploid.
Your cells produce haploid gametes through meiosis.
Your gametes fuse with someone else’s to form a diploid zygote.
The zygote differentiates by mitosis into a multicellular, diploid individual.
Plants have two generations in their life cycle:
• Gametophyte: haploid, gamete-producing phase.
• Sporophyte: diploid spore-producing phase.
In plants, generations alternate:
• A diploid individual produces haploid spores by meiosis.