BIOL211#8 - Chapter 31 Fungi Figure 31.1 Distinctive...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chapter 31 Fungi Figure 31.1 Distinctive Features Diverse and widespread Essential for most terrestrial ecosystems Fungi and animals have some common features – Heterotrophic – Have absorptive nutrition – Store surplus food in the form of glycogen Fungi have features that are distinctive from animals – Have tough cell walls composed of chitin – Cells cannot engulf food particles – Cell walls restrict mobility of nonflagellate cells Some fungi, such as yeasts, exist as single cells Most fungi are multicellular, which enhances their ability to absorb nutrients
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Fungi are composed of microscopic, branched filaments called hyphae Hyphae form an interwoven mass called a mycelium Mycelium Fungal morphology Figure 31.2 In most fungi the hyphae are divided into cells by septa Some fungi lack septa and are referred to as aseptate or coenocytic fungi Reproduction Fungi reproduce both asexually and sexually by means of microscopic spores – Spores are produced by meiosis and are protected by tough walls – Spores are haploid Asexual reproduction produces genetically identical organisms Sexual reproduction generates new allele combinations Many fungi reproduce both sexually and asexually, while many only reproduce asexually
Background image of page 2
3 Asexual reproduction – Many produce asexual spores known as conidia Figure 31.6 Green molds on citrus fruits are conidial fungi Yeasts are fungi that reproduce by asexual budding Figure 31.7 Molds and yeasts that have no known sexual stage are called deuteromycetes
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/02/2011 for the course BIOL 211 taught by Professor Boury during the Spring '08 term at Iowa State.

Page1 / 10

BIOL211#8 - Chapter 31 Fungi Figure 31.1 Distinctive...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online