BIO 101: General Biology I - Reproduction
40 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What are the male reproductive parts of a flower called?

  • Pistil
  • Stigma
  • Gynoecium
  • Androecium (correct)
  • Which part of the pistil is responsible for receiving pollen?

  • Filament
  • Ovary
  • Stigma (correct)
  • Style
  • In which type of flowers are both male and female reproductive parts present?

  • Bisexual flowers (correct)
  • Gymnosperms
  • Unisexual flowers
  • Staminate flowers
  • What is the primary function of the ovary in a flower?

    <p>To hold seeds (C)</p> Signup and view all the answers

    Which of the following helps in the process of pollination?

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

    What does the term 'gynoecium' refer to in a flower?

    <p>The female part (C)</p> Signup and view all the answers

    What is the role of pollen grains in the reproductive process of flowering plants?

    <p>To contain male sex cells (C)</p> Signup and view all the answers

    Which component of the flower serves as the base structure for the stamen?

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

    What process involves the body of an organism breaking into pieces that each grow into individual offspring?

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

    Which of the following is a form of asexual reproduction where the egg develops without fertilization?

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

    In vegetative propagation, which part of the plant can produce new individuals?

    <p>Roots, stems, and leaves (B)</p> Signup and view all the answers

    What type of vegetative propagation involves a piece of branch being cut and embedded in the soil?

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

    Which of the following is NOT a natural method of vegetative propagation?

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

    Which specialized structure is involved in vegetative propagation through tubers?

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

    What is the main benefit of artificial propagation methods?

    <p>To multiply desired plants efficiently (A)</p> Signup and view all the answers

    In which form of asexual reproduction are haploid males produced by ants and bees?

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

    What is the process called when a sperm and ovum fuse to form a new individual?

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

    Which reproductive method is characterized by offspring being directly born instead of hatching from eggs?

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

    What type of fertilization occurs outside the female's body?

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

    What is produced by the ovaries in female reproductive organs?

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

    Which of the following is NOT a type of internal fertilization?

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

    Which reproductive process is predominantly observed in lower organisms and unicellular microbes?

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

    What is the initial step in the process of reproduction?

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

    What is formed after the nuclei of the sperm and egg fuse?

    <p>Zygote (B), Fertilized egg (D)</p> Signup and view all the answers

    What is a defining characteristic of reproduction in organisms?

    <p>It is essential for the continuance of their species. (D)</p> Signup and view all the answers

    Which of the following is an example of asexual reproduction?

    <p>Binary fission in bacteria. (A)</p> Signup and view all the answers

    How does budding occur in organisms like yeast?

    <p>A part of the parent cell forms a new individual and remains attached. (B)</p> Signup and view all the answers

    What method of asexual reproduction is common in sponges and hydra?

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

    In the process of spore formation, which organisms typically produce spores?

    <p>Certain algae and fungi. (C)</p> Signup and view all the answers

    What is the main difference between asexual and sexual reproduction?

    <p>Asexual reproduction results in offspring from a single organism. (A)</p> Signup and view all the answers

    What occurs during binary fission in an amoeba?

    <p>The organism divides into two identical cells. (A)</p> Signup and view all the answers

    Which statement about gametes is true regarding sexual reproduction?

    <p>Both male and female gametes fuse to initiate a new individual. (C)</p> Signup and view all the answers

    What is self-pollination?

    <p>Pollen from one flower falls on its own stigma (A)</p> Signup and view all the answers

    Which of the following best describes cross-pollination?

    <p>Pollen from one plant fertilizes another flower of the same species (A)</p> Signup and view all the answers

    What role do pollinators play in fertilization?

    <p>They help transfer pollen from one flower to another (C)</p> Signup and view all the answers

    In viviparous animals, how does development occur?

    <p>Inside the mother's womb (A)</p> Signup and view all the answers

    What term describes animals that lay eggs?

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

    Which type of reproduction involves only one parent?

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

    Which of the following statements is true about hermaphrodites?

    <p>They have both female and male sex organs in the same individual (A)</p> Signup and view all the answers

    What is the process called when seeds are carried away from the parent plant?

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

    Flashcards

    Reproduction

    The process by which organisms create offspring of the same kind.

    Asexual Reproduction

    A single individual creates offspring without the involvement of another individual.

    Sexual Reproduction

    Two individuals contribute genetic material to create offspring.

    Binary Fission

    A single-celled organism divides into two identical daughter cells.

    Signup and view all the flashcards

    Budding

    A new organism grows from a bud that forms on the parent's body.

    Signup and view all the flashcards

    Spore Formation

    Specialized cells called spores are released from the parent organism, capable of developing into new individuals.

    Signup and view all the flashcards

    Reproduction in Flowering Plants

    The process of plant reproduction involving flowers, pollination, fertilization, and the development of seeds and fruits.

    Signup and view all the flashcards

    Reproduction in Animals

    The range of reproductive processes in animals, often involving specialized sex organs and mating behaviors.

    Signup and view all the flashcards

    Spores

    Single-celled units released by parent plants that develop into new individuals.

    Signup and view all the flashcards

    Vegetative Propagation

    A form of asexual reproduction in plants where new plants arise from vegetative parts like roots, stems, or leaves.

    Signup and view all the flashcards

    Root Propagation

    A type of vegetative propagation where new plants grow from adventitious roots.

    Signup and view all the flashcards

    Stem Propagation

    A type of vegetative propagation where new plants grow from stems.

    Signup and view all the flashcards

    Runners

    A type of stem propagation where a horizontal stem grows along the ground, producing new plants at nodes.

    Signup and view all the flashcards

    Suckers

    A type of stem propagation where shoots arise from the base of the main stem.

    Signup and view all the flashcards

    Bulbs

    A type of stem propagation where a swollen underground stem stores food.

    Signup and view all the flashcards

    Tubers

    A type of stem propagation where an underground stem stores food and buds.

    Signup and view all the flashcards

    Pollination

    The transfer of pollen from the anther of a flower to the stigma.

    Signup and view all the flashcards

    Self-pollination

    Pollination where pollen from a flower falls on its own stigma, leading to fertilization.

    Signup and view all the flashcards

    Cross-pollination

    Pollination where pollen from one flower falls on the stigma of another flower of the same species.

    Signup and view all the flashcards

    Fertilization in plants

    The fusion of the pollen and ovule nuclei, leading to seed development.

    Signup and view all the flashcards

    Oviparous

    Animals that lay eggs.

    Signup and view all the flashcards

    Viviparous

    Animals that give birth to live young.

    Signup and view all the flashcards

    Hermaphrodite

    Animals that have both male and female reproductive organs.

    Signup and view all the flashcards

    Sexual reproduction in plants

    The fusion of male and female gametes to produce a zygote, which then develops into a new plant.

    Signup and view all the flashcards

    Stamen (Androecium)

    The male reproductive organ of a flower, responsible for producing pollen grains.

    Signup and view all the flashcards

    Pistil (Gynoecium)

    The female reproductive organ of a flower, consisting of the stigma, style, and ovary, which contains the ovules.

    Signup and view all the flashcards

    Anther

    The part of the stamen that produces pollen grains.

    Signup and view all the flashcards

    Stigma

    The sticky part of the pistil that receives pollen grains.

    Signup and view all the flashcards

    Fertilization

    The fusion of the male gamete (pollen) with the female gamete (ovule) to form a zygote.

    Signup and view all the flashcards

    Bisexual flowers

    Flowers that contain both male (stamen) and female (pistil) reproductive parts.

    Signup and view all the flashcards

    Reproductive Organs (Male & Female)

    The male reproductive organs produce sperm, while the female reproductive organs produce eggs.

    Signup and view all the flashcards

    Internal Fertilization

    Fertilization that occurs inside the body of the female.

    Signup and view all the flashcards

    External Fertilization

    Fertilization that occurs outside the body of the female.

    Signup and view all the flashcards

    Asexual Reproduction in Animals

    A type of reproduction that occurs mainly in lower organisms. It involves a single parent without gamete formation.

    Signup and view all the flashcards

    Oviparity

    Fertilized eggs are laid outside, and the developing embryo receives nourishment from the yolk.

    Signup and view all the flashcards

    Ovoviviparity

    Fertilized eggs are retained inside the female's body, receiving nourishment from the yolk. Eggs are laid just before hatching.

    Signup and view all the flashcards

    Study Notes

    BIO 101: General Biology I - Study Notes

    • Course Instructors:
      • Dr. Oladosu O.O. (Course Coordinator) - 08034049078
      • Dr. Popoola J.O. - 08064640018
      • Dr. Aromolaran O. - 08062225745
      • Dr. Omotayo O.E. - 08023799838

    Reproduction

    • Definition: Reproduction is the biological process where organisms create offspring.
    • Types:
      • Asexual: Reproduction involving one parent, producing genetically identical offspring.
      • Sexual: Reproduction involving two parents, creating offspring with genetic variation.

    Asexual Reproduction

    • Lower Organisms:
      • Binary Fission: A cell dividing into two individuals, losing its original identity (e.g., amoeba, bacteria).
      • Budding: A bud forms on the parent organism, developing into a new individual which then detaches (e.g., yeast, hydra).
      • Spore Formation: Spores are produced and develop into new individuals (e.g., Chlamydomonas, fungi, moss, ferns).
    • Additional Asexual Reproduction Methods:
      • Fragmentation: An organism breaks into pieces, and each develops into a new organism (e.g., planaria, starfish).
      • Parthenogenesis: Development of an egg without fertilization, creating a new organism (e.g., bees, wasps, ants, some vertebrates).

    Asexual Reproduction in Plants (Vegetative Propagation)

    • Natural Methods:
      • Roots: Adventitious roots, giving rise to new plants (e.g., sweet potato, Dahlia).
      • Stems: Runners, suckers, bulbs, tubers, rhizomes (e.g., grass runners, Chrysanthemum, onion, potato, ginger).
      • Leaves: Adventitious buds (e.g., Bryophyllum).
    • Artificial Methods:
      • Cuttings: A piece of stem/root inserted in the soil to produce new roots.
      • Layering: A stem part is buried in the soil, allowed to root, and then separated.
      • Other methods (e.g., grafting).

    Sexual Reproduction in Plants

    • Flowers: The reproductive organ of flowering plants, containing both male (stamen) and female (pistil) parts.
    • Pollination: Transfer of pollen grains from the anther to the stigma.
      • Self-pollination: Pollen from the same flower.
      • Cross-pollination: Pollen from a different flower.
    • Fertilization: Fusion of pollen and ovule, forming a zygote.

    Sexual Reproduction in Animals

    • Reproductive Organs: Male (testes, sperm ducts, penis) and female (ovaries, oviducts, uterus).
    • Fertilization: Fusion of sperm and ovum.
      • Internal Fertilization: Fertilization occurs inside the female body.
      • External Fertilization: Fertilization occurs outside the female body.
    • Types of development after Internal Fertilization:
      • Oviparity: Fertilized eggs laid outside the body.
      • Ovoviviparity: Fertilized eggs develop inside the mother and hatch outside.
      • Viviparity: Developing embryos stay inside the mother and are nourished by her before birth.

    Asexual Reproduction in Animals

    • A process where a single organism divides to create more organisms. These organisms are identical to the original.
    • Types: Binary fission, budding, fragmentation, regeneration, and parthenogenesis.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    This quiz covers key concepts related to reproduction in organisms as taught in BIO 101: General Biology I. It includes definitions, types of reproduction, and detailed insights into asexual reproduction mechanisms such as binary fission, budding, and spore formation.

    More Like This

    Asexual Reproduction in Biology
    17 questions
    Asexual Reproduction Methods Quiz
    5 questions
    Biology: Reproduction Quiz
    21 questions
    Biology Asexual and Sexual Reproduction
    15 questions
    Use Quizgecko on...
    Browser
    Browser