General Botany - Plant Classification Quiz
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Questions and Answers

What does the genus represent in the naming of an organism?

  • A small group of closely related organisms (correct)
  • A large group of unrelated organisms
  • The entire classification hierarchy
  • The specific characteristics of a species
  • What is the correct order of names in the binomial nomenclature?

  • Family followed by species
  • Order followed by genus
  • Specific epithet followed by genus
  • Genus followed by specific epithet (correct)
  • Which of the following correctly states how the full scientific name should be formatted?

  • Both parts must be capitalized
  • Neither part is italicized
  • Both parts should be underlined but not italicized
  • Only the genus is capitalized, and both are italicized (correct)
  • Why are scientific names derived from Latin?

    <p>Latin does not evolve, ensuring consistent meaning (D)</p> Signup and view all the answers

    Which of the following plants is NOT part of the Division Lycophyta?

    <p>Ferns (D)</p> Signup and view all the answers

    What characteristic defines horsetail plants?

    <p>They have joints or nodes. (D)</p> Signup and view all the answers

    Who is known as the 'father of modern taxonomy'?

    <p>Linnaeus (D)</p> Signup and view all the answers

    What is the purpose of binomial nomenclature?

    <p>To provide unique species identifiers and avoid confusion (A)</p> Signup and view all the answers

    Which plant belongs to the group of seedless vascular plants?

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

    Which of the following statements is TRUE regarding the specific epithet?

    <p>It follows the genus name in the scientific name (B)</p> Signup and view all the answers

    What is a unique feature of whisk ferns?

    <p>They lack both roots and leaves. (B)</p> Signup and view all the answers

    Which of the following is a characteristic of plants in the Division Lycophyta?

    <p>They are all terrestrial plants. (D)</p> Signup and view all the answers

    What is taxonomy primarily concerned with?

    <p>The hierarchical classification of organisms (A)</p> Signup and view all the answers

    Which group of plants includes horsetails?

    <p>Division Pterophyta (B)</p> Signup and view all the answers

    What is the common name for Equisetum, a member of horsetails?

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

    Which of the following statements about quillworts is true?

    <p>They belong to the Division Lycophyta. (D)</p> Signup and view all the answers

    Which generation is dominant in the reproductive cycle of angiosperms?

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

    What is the main characteristic of the pollen in basal angiosperms?

    <p>It has one pore (B)</p> Signup and view all the answers

    Which of the following groups is included in basal angiosperms?

    <p>Austrobaileya (D)</p> Signup and view all the answers

    Basal angiosperms were once grouped with eudicots due to their similar physical characteristics. What is one such characteristic?

    <p>Possessing two embryonic leaves (A)</p> Signup and view all the answers

    How many orders of plants are categorized under the ANITA basal angiosperms?

    <p>Five (D)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of eudicots?

    <p>Leaf veins that are parallel (D)</p> Signup and view all the answers

    What is the total estimated number of eudicot species?

    <p>Approximately 170,000 species (A)</p> Signup and view all the answers

    Which flower part is NOT typically found in eudicots?

    <p>Parts in multiples of threes (D)</p> Signup and view all the answers

    What type of root system is commonly found in eudicots?

    <p>Tap root system (B)</p> Signup and view all the answers

    Which of the following groups has been reclassified as eudicots?

    <p>Former small dicot groups (B)</p> Signup and view all the answers

    What is a defining feature of monocots compared to eudicots?

    <p>Parallel-veined leaves (A)</p> Signup and view all the answers

    Which of the following is NOT an example of an eudicot?

    <p>Corn (B)</p> Signup and view all the answers

    What floral arrangement is typical for eudicots?

    <p>Parts in multiples of fours or fives (D)</p> Signup and view all the answers

    What is a defining characteristic of cycads?

    <p>They possess crowns of large compound leaves. (B)</p> Signup and view all the answers

    Which group of plants is characterized by having seeds encased in a fleshy covering?

    <p>Ginkgos (D)</p> Signup and view all the answers

    Which of the following genera is not part of the Gnetophyta division?

    <p>Cycadus (D)</p> Signup and view all the answers

    What distinguishes basal angiosperms from other angiosperm groups?

    <p>Their pollen has one pore or groove. (C)</p> Signup and view all the answers

    Which of the following plants is known for having the largest leaves?

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

    In terms of plant generations, which generation is the dominant form in angiosperms?

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

    Which feature is NOT typical of Ginkgo trees?

    <p>Cones located at the end of branches (C)</p> Signup and view all the answers

    Which statement about angiosperms is accurate?

    <p>They have sporophyte as the dominant generation. (B)</p> Signup and view all the answers

    What differentiates water lily leaves from lotus leaves?

    <p>Water lily leaves float directly on water while lotus leaves hover above. (C)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Magnoliids?

    <p>Parallel-veined leaves (C)</p> Signup and view all the answers

    What is a key characteristic of monocots?

    <p>They have scattered vascular bundles in the stem. (D)</p> Signup and view all the answers

    Which of these plants is an example of a Magnoliid?

    <p>Black pepper (Piper nigrum) (D)</p> Signup and view all the answers

    Which characteristic is unique to monocots compared to Magnoliids?

    <p>Presence of a fibrous root system. (D)</p> Signup and view all the answers

    How many species approximately represent monocots among angiosperms?

    <p>About 70,000 species. (B)</p> Signup and view all the answers

    Which statement about water lilies and lotuses is correct?

    <p>Lotus flowers bloom at night, while water lily flowers bloom during the day. (B)</p> Signup and view all the answers

    Which of the following plants produces aromatic flowers?

    <p>Sweet bay tree (Laurus nobilis) (C)</p> Signup and view all the answers

    Flashcards

    Binomial Nomenclature

    A two-part naming system for organisms, using genus and species.

    Genus

    A small group of closely related organisms.

    Specific epithet

    Part of a scientific name, a word that distinguishes one species from others in a genus.

    Scientific Name

    A formal name given to an organism in binomial nomenclature, including the genus and species.

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    Carl Linnaeus

    Swedish scientist who formalized binomial nomenclature.

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    Classification

    Establishing a hierarchical system of categories based on presumed natural relationships among organisms.

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    Taxonomy

    The science of biological classification.

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    Binomial Nomenclature Rules

    Rules for writing scientific names, keeping them standardized and avoiding confusion.

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    Lycophyta Division

    A division of seedless vascular plants, including quillworts, club mosses, and spike mosses.

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    Club Mosses

    Early seedless vascular plants considered the most primitive.

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    Pterophyta Division

    A division of seedless vascular plants, including horsetails, whisk ferns, and ferns.

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    Horsetails (Arthrophyta)

    Seedless vascular plants with jointed stems.

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    Whisk Ferns

    Seedless vascular plants that lack both roots and leaves.

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    Seedless Vascular Plants

    Plants that don't produce seeds but have vascular tissue for transporting water and nutrients.

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    Vascular Tissue

    Plant tissue responsible for transporting water and nutrients throughout the plant.

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    Division

    A taxonomic rank in the classification of living organisms.

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    Cycadophyta

    A division of seed plants characterized by large compound leaves, cones at the trunk end, and a palm-tree-like appearance.

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    Ginkgophyta

    A division of seed plants characterized by fan-shaped leaves with evenly forking veins, similar reproductive cycles to conifers, and fleshy covering around edible seeds.

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    Gnetophyta

    A division of seed plants consisting of three genera (Ephedra, Gnetum, and Welwitschia) with unique adaptations for their environments.

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    Ephedra

    A genus of Gnetophyta plants, often found in deserts, with small stems and scale-like leaves.

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    Welwitschia

    A genus of Gnetophyta plants characterized by a single trunk and two enormous, strap-like leaves, found in deserts of southwest Africa.

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    Angiosperms

    Flowering seed plants that produce seeds encased within protective ovaries, also known as flowering plants.

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    Basal Angiosperms

    The most primitive flowering plants, not belonging to monocots or eudicots, but with characteristics of both.

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    Water Lily vs. Lotus

    The water lily has a notched, floating leaf, while the lotus has a round leaf that hovers above the water.

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    Magnoliids - Characteristics

    Magnoliids are flowering plants with two cotyledons, netted-veined leaves, flower parts in multiples of threes, scattered vascular bundles, a tap root system, and pollen with one opening.

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    Monocots - Characteristics

    Monocots are flowering plants with one cotyledon, parallel-veined leaves, flower parts in multiples of threes, scattered vascular bundles, no cambium, a fibrous root system, and pollen with one opening.

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    What is a cotyledon?

    A cotyledon is a seed leaf that provides nourishment to the developing embryo of a plant.

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    Parallel-veined leaves

    Leaves with veins running parallel to each other, typical of monocots.

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    Netted-veined leaves

    Leaves with veins forming a network pattern, typical of magnoliids.

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    Tap root system

    A root system with a single main root that grows downwards, typical of magnoliids.

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    Fibrous root system

    A root system with many thin roots that spread out, typical of monocots.

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    Eudicots

    A group of flowering plants characterized by two cotyledons, netted-veined leaves, and flower parts in multiples of four or five.

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    Cotyledon

    The first leaf or leaves that emerge from a seed, containing stored food for the developing embryo.

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    Pollen Grain with 3 Openings

    A pollen grain containing three openings for the pollen tube to emerge.

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    Vascular Bundles in a Ring

    The bundles that transport water and nutrients are arranged in a circular pattern within the stem.

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    Example of Eudicots

    Roses, beans, cucurbits are examples of plants that are classified as eudicots.

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    Eudicot Diversity

    Eudicots encompass a vast range of species, representing more than two-thirds of all flowering plants.

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    Sporophyte Generation

    The dominant generation in angiosperms. It produces spores that develop into the gametophyte generation.

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    Gametophyte Generation

    The microscopic generation in angiosperms. It produces gametes (sperm and egg cells) for fertilization.

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    Monocots

    A group of flowering plants with one embryonic leaf, parallel veins in their leaves, and pollen with one pore or groove.

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    Study Notes

    Course Information

    • Course: Bio 100/L - General Botany
    • Instructor: Ann Guillen-Malazarte
    • Department: Bio-Physical Science
    • College: College of Sciences
    • Semester: First Semester
    • Academic Year: 2024-2025

    Student's Prayer

    • Prayer acknowledging gratitude to God for life, needs, love, protection
    • Asking blessings for parents, teachers, and classmates
    • Seeking wisdom and guidance for understanding lessons
    • Asking for inspiration through the Holy Spirit
    • Prayer offered in the name of Jesus Christ

    Learning Outcomes

    • Describe the binomial system of nomenclature
    • Enumerate the classification levels in a logical sequence
    • Summarize non-vascular and vascular plant characteristics
    • Classify local plants

    Classification of Plants

    • A hierarchical system of plant classification based on presumed relationships
    • Classification is called taxonomy
    • Each level of classification is called a taxon (plural taxa)
    • The broadest level is domain (Archaea, Bacteria, Eukarya)
    • Other taxonomic levels include kingdom, division, class, order, family, genus, and species

    Plant Examples and Classifications

    • Moss (Division Bryophyta)
    • Fern (Division Pterophyta)
    • Dragon fruit cactus (Division Anthophyta)
    • Pine tree (Division Coniferophyta)

    Non-Vascular Plants

    • Simple plants without a vascular system (phloem/xylem)
    • Small size due to lack of mechanisms for transporting water/food long distances
    • Lack true roots; instead have rhizoids (small hairs) to anchor in substrate
    • Commonly found in moist environments for easy water absorption

    Reproduction in Non-Vascular Plants

    • Sexual reproduction through spores
    • Asexual reproduction through vegetative propagation
    • Water needed for sperm to reach egg in sexual reproduction
    • Moisture needed for spore dispersal

    Different Non-Vascular Plant Types

    • Liverworts (Division Hepatophyta)
    • Hornworts (Division Anthocerophyta)

    Mosses (Division Bryophyta)

    • Larger than other non-vascular plants
    • Coarse, multicellular rhizoids
    • Photosynthetic structures (tiny leaves) encircle stem-like structure

    Alternation of Generation in Plants

    • Life cycle with two distinct stages: diploid sporophyte and haploid gametophyte
    • Sporophyte generation produces spores (haploid) through meiosis
    • Gametophyte generation produces gametes (reproductive cells)
    • Plants alternate between these two stages in their life cycle

    Gametophyte and Sporophyte

    • Gametophyte: gamete-producing, usually haploid; dominant in bryophytes
    • Sporophyte: multicellular spore-producing, diploid; dominant in many vascular plants

    Examples of Plant Life Cycles (e.g. moss, fern)

    -Diagrams of relevant plant life cycles included in handouts
    

    Vascular Plants

    • Seedless Vascular Plants

      • Club Mosses
      • Whisk Ferns
      • Horsetails
      • Ferns
    • The diploid sporophyte is the dominant phase of the lifecycle

    • Gametophyte is still independent, but depends on water for fertilization

    • Primarily found in damp environments

    Division Lycophyta

    • Includes quillworts, club mosses, and spike mosses
    • Not true mosses (bryophytes)

    Characteristics of Club Mosses

    • Earliest seedless vascular plants
    • Most primitive vascular plants

    Division Pterophyta

    • Includes horsetails, whisk ferns, and ferns
    • Horsetails: stems with joints/nodes
    • Whisk ferns: lack roots and leaves; photosynthesis occurs in stem
    • Ferns: most advanced seedless vascular plants; fronds, sporangia(sori) on underside

    Seed Plants

    • Gymnosperms
      • Produce seeds in cones
      • Lack covered seeds
    • Angiosperms
      • Produce seeds in ovaries of flowers
      • Have covered seeds

    Gymnosperms

    • Classified into four divisions: Cycadophyta, Coniferophyta, Ginkgophyta, Gnetophyta
      • Coniferophyta (pine trees): largest genus are conifers; leaves called needles in bundles
      • Cycadophyta (palm-like cycads): Distinguished by crowns of large compound leaves, cones at the end of trunk

    Flowering Seed Plants (Angiosperms)

    • Division Anthophyta (Flowering Seed Plants)
    • Angiosperms have seeds encased in protective ovary
    • The sporophyte is the dominant generation

    Angiosperm Groups

    • Basal angiosperms
    • Magnoliids
    • Monocots
    • Eudicots

    Basal Angiosperms

    • Most primitive flowering plants
    • Do not belong to either Monocots or Eudicots
    • Have net-like vein patterns in their leaves
    • Pollen with one pore

    Magnoliids

    • Mainly flowering plants that are aromatic
    • Two cotyledons, netted-veined leaves
    • Flower parts in multiples of 3
    • Scattered vascular bundles in the stem
    • Tap root system
    • Pollen grain with one opening

    Monocots

    • Single cotyledon
    • Parallel-veined leaves
    • Flower parts in multiples of 3
    • Scattered vascular bundles in the stem
    • Fibrous root system
    • Single pollen opening

    Eudicots

    • Two cotyledons
    • Netted-veined leaves
    • Flower parts in multiples of 4 or 5
    • Vascular bundles in a ring in the stem
    • Tap root system
    • Three openings in pollen grain

    Important Plant Examples

    • Victoria boliviana (giant water lily)
    • Lotus (other water lily)

    Classification of plants (general)

    • Discussion of the basis for classifying plants and use of standardized scientific names

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    Description

    Test your knowledge of the classification of plants in this quiz designed for Bio 100/L - General Botany. You'll cover topics such as the binomial system of nomenclature, plant characteristics, and the levels of taxonomy. Perfect for students seeking to deepen their understanding of botanical concepts.

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