Final Exam Review - BIO 211
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Questions and Answers

What are the cell walls of fungi primarily composed of?

  • Lignin
  • Keratin
  • Chitin (correct)
  • Cellulose

What is mycelium?

  • A type of spore produced by fungi
  • The reproductive structure of fungi
  • A network of fungal hyphae (correct)
  • A single fungal cell

What is unique about sexual reproduction in ascomycete and basidiomycete fungi?

  • It occurs only under optimal environmental conditions
  • It requires two different mating types (correct)
  • It does not produce any spores
  • It involves only spore formation

Which group of chordates gave rise to the tetrapods?

<p>Lobed-finned fish (C)</p> Signup and view all the answers

What major advancement allows amniotes to live in terrestrial environments?

<p>The amniotic egg (B)</p> Signup and view all the answers

What derived characteristic is unique to mammals?

<p>Hair or fur (C)</p> Signup and view all the answers

How do amphibians bridge the gap between aquatic and terrestrial lifestyles?

<p>By having both gills and lungs during different life stages (C)</p> Signup and view all the answers

What derived character distinguishes birds from other reptiles?

<p>Feathers (A)</p> Signup and view all the answers

What is the primary mode of nutrition in fungi?

<p>Heterotrophy (A)</p> Signup and view all the answers

Which of the following best describes the role of endosymbiosis in the evolution of eukaryotes?

<p>It led to the incorporation of prokaryotic cells into eukaryotic cells. (C)</p> Signup and view all the answers

How do eukaryotes differ from prokaryotes?

<p>Eukaryotes possess a nucleus, while prokaryotes lack a true nucleus. (C)</p> Signup and view all the answers

Which of the following is NOT one of the 4 supergroups of Eukaryotes?

<p>Plantae (C)</p> Signup and view all the answers

What best describes the synapomorphies of the supergroup SAR?

<p>A shared feature of secondary endosymbiosis. (C)</p> Signup and view all the answers

What is a protist?

<p>An organism that can be either unicellular or multicellular and is not a plant, animal, or fungus. (D)</p> Signup and view all the answers

Which clade is NOT defined within the supergroup Unikonta?

<p>Plant Kingdom (A)</p> Signup and view all the answers

Which characteristic is true about fungi?

<p>They can form mutualistic relationships with plants. (C)</p> Signup and view all the answers

Flashcards

Eukaryote Definition

A eukaryote is an organism whose cells contain a nucleus and other membrane-bound organelles. This contrasts with prokaryotes, which lack a nucleus and other complex organelles.

Protist Definition

A protist is an informal term for a diverse group of eukaryotic organisms that are not plants, animals, or fungi.

Endosymbiosis Definition

Endosymbiosis is a process where one organism lives inside another organism. A significant role in the history of life, as it's theorized to be the origin of mitochondria and chloroplasts in eukaryotic cells.

Eukaryotic Origin

Eukaryotes arose from Archaea.

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Plastid Evolution

Plastids, like chloroplasts, evolved through endosymbiosis of photosynthetic bacteria.

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Fungal Nutrition

Fungi primarily obtain nutrients by absorbing organic matter through their surroundings.

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Fungal Mutualistic Relationships

Fungi form mutualistic symbiotic relationships with plants (mycorrhizae) and other organisms.

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Fungal Cell Structure

Fungi can be both multicellular (yeasts) and unicellular.

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Fungal cell wall composition

Fungal cell walls are primarily composed of chitin.

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Fungal hyphae types

Fungi have septate and coenocytic hyphae. Septate hyphae are divided by cross-walls, while coenocytic hyphae are not.

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Mycelium definition

Mycelium is the interwoven mass of hyphae that forms the body of a fungus.

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Land plant evolution from algae

Land plants evolved from algae. Morphological and molecular evidence support this theory.

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Seed advantages

Seeds provide protection and resources for developing embryos; dispersal of offspring away from the parent plant.

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Angiosperm evolutionary adaptation

Flowering plants (angiosperms) have developed unique adaptations, such as flowers and fruits, that enhance fertilization and seed dispersal.

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Metazoan definition

Metazoans are multicellular animals.

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Tetrapod characteristics

Tetrapods are vertebrates with four limbs, including amphibians, reptiles, birds and mammals.

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Study Notes

Final Exam Review - BIO 211

  • Overarching Themes: The final exam will cover cumulative concepts from the midterm and beyond, including unifying biological themes, Darwinian evolution, phylogeny, and the origin of eukaryotes.

  • Lecture Topics:

    • Embryophyta (W5L1-W5L3): Origins, evolution, diversity, and ecology
    • Spermatophyta (W5L3): Evolution, diversity, and ecology
    • Fungi (W6L1-W6L2): Origins, evolution, and ecology
    • Animal Diversity (W7L1-W7L3): Overview, Invertebrates I and II
    • Chordata (W9L1): Origins and evolution
    • Vertebrates (W9L2-W9L3): Gnathstomes to tetrapods, amniotes to mammals, and primates
    • Humans (W10L1-W10L2): Variable selection hypothesis
  • Preparation Strategies:

    • Review lecture notes thoroughly; these are the primary source for the exam.
    • Review any notes taken during lectures and discussions.
    • Review lab handouts.
    • Note areas needing clarification for discussion during review sessions.

Important Concepts for Review

  • Eukaryotes vs. Prokaryotes: Differences between the two types of cells.
  • Endosymbiosis: Its role in the history of life on Earth.
  • Eukaryote Supergroups: Characteristics defining the four major supergroups.
  • Unikonta: Synapomorphies defining the two clades within this supergroup.
  • SAR: Synapomorphies defining the three clades in this supergroup.
  • Fungal Nutrition: Primary mode of nutrition.
  • Fungal Relationships: Mutualistic relationships, cell wall composition, hyphae types, and mycelium.
  • Fungal Reproduction: Differences between fungal reproduction types.
  • Fungal Colonization (Land Plants): Relationships of fungi and land plants.
  • Land Plants: Defining characteristics, evolutionary adaptations (e.g., sporopollenin, cuticle, stomata, mycorrhizae), and the four informal groups.
  • Gametophyte and Sporophyte Evolution: Changes in these phases over plant evolution.
  • Plant Adaptations: Advantages of seeds and angiosperms.
  • Metazoans: Characteristics distinguishing them from other eukaryotes.
  • Animal Body Plans: Four primary methods of characterizing animal body plans.
  • Animal Clades: Five major animal clades, defining characteristics, and primary chordate clades.
  • Tetrapods: Group of chordates that gave rise to tetrapods, and their derived characteristics.
  • Amphibians: Bridging aquatic and terrestrial lifestyles.
  • Amniotes: Key adaptations to terrestrial living.
  • Reptiles, Birds, and Mammals: Key characteristics, derived characteristics, and lineages.
  • Endothermy: Benefits and drawbacks of endothermy.
  • Primates: Defining characters of primates.
  • Human Evolution: Misconceptions, major steps from organic material to eutherian mammals, and the relationship between evolution and unity/diversity of life.

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Description

Prepare for the BIO 211 final exam with this review quiz covering key concepts such as Darwinian evolution, phylogeny, and various biological classifications including plants, fungi, and animals. This quiz encapsulates themes from lectures and lab work, ensuring a comprehensive understanding of the material.

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