Characteristics of Living Organisms and DNA
119 Questions
0 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 is the molecule that contains a molecular sequence encoding an organism's genetic information?

  • Protein
  • RNA
  • Lipid
  • DNA (correct)

    • According to the Cell Theory, what is the basic unit of life?

  • Tissue
  • Cell (correct)
  • Molecule
  • Organelle

    • Which of the following is not a domain of life?

  • Monera (correct)
  • Archaea
  • Bacteria
  • Eukarya

    • What is LUCA in the context of the domains of life?

    <p>Common Ancestor of All Living Organisms</p> Signup and view all the answers

    Which of the following is true about single cellular organisms?

    <p>They can exist in communities and cooperate</p> Signup and view all the answers

    What does DNA stand for?

    <p>Deoxyribonucleic Acid</p> Signup and view all the answers

    Which statement is true regarding the continuity of life?

    <p>Dependent on faithful copying of DNA into offspring cells</p> Signup and view all the answers

    Which is NOT one of the three domains of life?

    <p>Animals</p> Signup and view all the answers

    What do all living things have in common according to the text?

    <p>Response to their environment</p> Signup and view all the answers

    What is the main function of DNA in living organisms according to the text?

    <p>To encode genetic information</p> Signup and view all the answers

    When did the first prokaryotic life arise on Earth?

    <p>3.5 billion years ago</p> Signup and view all the answers

    What event marked the beginning of the Phanerozoic Eon?

    <p>Cambrian Explosion</p> Signup and view all the answers

    When did the first multicellular fossils appear?

    <p>2.1 billion years ago</p> Signup and view all the answers

    Which era saw the emergence of the first mammals?

    <p>Mesozoic Era</p> Signup and view all the answers

    What was responsible for creating atmospheric oxygen in mass quantities around 3 billion years ago?

    <p>Oxygen Revolution</p> Signup and view all the answers

    Which period saw the emergence of the first plants on land?

    <p>Paleozoic Period</p> Signup and view all the answers

    True or False: The emergence of eukaryotes predates the emergence of prokaryotes.

    <p><strong>False</strong></p> Signup and view all the answers

    True or False: Nearly all life during the early stages was multicellular.

    <p><strong>False</strong></p> Signup and view all the answers

    True or False: The Cambrian Explosion led to a decrease in biodiversity.

    <p><strong>False</strong></p> Signup and view all the answers

    True or False: Adaptive radiation occurs when a single species remains unchanged over time.

    <p><strong>False</strong></p> Signup and view all the answers

    What is the term used to describe the maintenance of internal balance in living organisms?

    <p>Homeostasis</p> Signup and view all the answers

    Which domain of life includes plants, animals, fungi, and protists?

    <p>Eukarya</p> Signup and view all the answers

    What is the molecule that serves as the genetic material of all living things?

    <p>DNA</p> Signup and view all the answers

    Which era marked the emergence of the first mammals?

    <p>Cenozoic Era</p> Signup and view all the answers

    What is the term used to describe the most recent common ancestor of all living things?

    <p>Last Universal Common Ancestor (LUCA)</p> Signup and view all the answers

    Single cellular organisms are made up of how many cells?

    <p>Exactly one cell</p> Signup and view all the answers

    What is responsible for creating atmospheric oxygen around 3 billion years ago?

    <p>Photosynthetic Bacteria</p> Signup and view all the answers

    During which event did life experience a significant increase in biodiversity?

    <p>Cambrian Explosion</p> Signup and view all the answers

    When did the first prokaryotic life arise on Earth?

    <p>&gt; 3 billion years ago</p> Signup and view all the answers

    Adaptive radiation occurs when:

    <p>A single species diversifies into many different species to exploit different niches.</p> Signup and view all the answers

    When did the first known photosynthetic organisms, cyanobacteria, arise?

    <p>3.4 billion years ago</p> Signup and view all the answers

    What geological eon marks the period when life formed about 3.5 billion years ago?

    <p>Archean Eon</p> Signup and view all the answers

    Approximately how many mass extinctions have occurred in the history of life on Earth?

    <p>6</p> Signup and view all the answers

    When did the first life on Earth originate as a single-celled organism?

    <p>3.5 billion years ago</p> Signup and view all the answers

    Which era saw the emergence of the first mammals during the age of dinosaurs?

    <p>Mesozoic Era</p> Signup and view all the answers

    What event marks the beginning of the Phanerozoic Eon and dramatic animal diversification?

    <p>The Cambrian Explosion</p> Signup and view all the answers

    Where did life first evolve on Earth, according to the text?

    <p>Ocean's edge</p> Signup and view all the answers

    Around what time did single-celled eukaryotes likely first arise?

    <p>~2.5 billion years ago</p> Signup and view all the answers

    What term is used to describe the genetic material of all living things?

    <p>RNA</p> Signup and view all the answers

    Which organisms store their DNA in different ways?

    <p>Protists</p> Signup and view all the answers

    What is NOT one of the three domains of life?

    <p>Annelida</p> Signup and view all the answers

    When did the first known photosynthetic organisms arise?

    <p>3.5 billion years ago</p> Signup and view all the answers

    Which event marks the beginning of the Phanerozoic Eon and dramatic animal diversification?

    <p>Cambrian Explosion</p> Signup and view all the answers

    What molecule serves as the genetic material of all living things?

    <p>Carbohydrate</p> Signup and view all the answers

    Approximately how many mass extinctions have occurred in the history of life on Earth?

    <p>5</p> Signup and view all the answers

    When did the first prokaryotic life arise on Earth?

    <p>3.5 billion years ago</p> Signup and view all the answers

    What era saw the emergence of the first mammals?

    <p>Cenozoic Era</p> Signup and view all the answers

    What does LUCA refer to in the context of the domains of life?

    <p>The Last Universal Common Ancestor</p> Signup and view all the answers

    Around what time did the first mammals evolve, according to the text?

    <p>200 MYA</p> Signup and view all the answers

    During which era did the first eukaryotic cells likely arise?

    <p>Proterozoic Eon</p> Signup and view all the answers

    What event is responsible for creating mass quantities of atmospheric oxygen around 3 billion years ago?

    <p>Oxygen Revolution</p> Signup and view all the answers

    Which of the following domains of life includes bacteria, archaea, and eukaryotes?

    <p>Eukarya</p> Signup and view all the answers

    What marks the beginning of the Phanerozoic Eon and dramatic animal diversification?

    <p>Cambrian Explosion</p> Signup and view all the answers

    What process occurs when a single species rapidly diversifies to fill many ecological niches?

    <p>Adaptive Radiation</p> Signup and view all the answers

    Approximately how many times have mass extinctions occurred in the history of life on Earth?

    <p>5</p> Signup and view all the answers

    Which supergroup of Eukarya includes Stramenopiles, Alveolates, and Rhizaria?

    <p>SARs</p> Signup and view all the answers

    What is the significance of the term 'eu' in 'eukaryote'?

    <p>True</p> Signup and view all the answers

    How many Eukaryotic Kingdoms were confirmed through DNA sequencing?

    <p>24</p> Signup and view all the answers

    Which domain is more closely related to Fungi, Animals, and Plants according to the text?

    <p>Protists</p> Signup and view all the answers

    What is the main idea behind the Endosymbiotic Theory mentioned in the text?

    <p>Eukaryotic organelles arose from symbiotic interactions</p> Signup and view all the answers

    In which domain of life do Stramenopiles, Alveolates, and Rhizaria belong?

    <p>Eukarya</p> Signup and view all the answers

    What is a common characteristic of organisms in the supergroup Amoebozoans?

    <p>Heterotrophic nutrition</p> Signup and view all the answers

    What drives water into the fungal cell?

    <p>Osmosis</p> Signup and view all the answers

    Which supergroup includes organisms that may have atypical or absent mitochondria?

    <p>Excavates</p> Signup and view all the answers

    Which structure in fungi allows for rapid spore dispersal?

    <p>Sporangia</p> Signup and view all the answers

    What is a defining feature of organisms in the supergroup Archaeplastids?

    <p>Photoautotrophic nutrition</p> Signup and view all the answers

    What maintains the shape of the hypha in fungi?

    <p>Turgor pressure</p> Signup and view all the answers

    Which reproductive structures are produced above ground by many fungi?

    <p>Fruiting bodies</p> Signup and view all the answers

    Which group of organisms has cell walls made of chitin?

    <p>Fungi</p> Signup and view all the answers

    What type of spores do sporangia produce?

    <p>Asexual</p> Signup and view all the answers

    What is a common characteristic shared by organisms in the supergroup Opisthokonts?

    <p>Presence of flagella or pseudopods</p> Signup and view all the answers

    What increases as a result of the fungal cell wall maintaining the hypha shape?

    <p>Turgor pressure</p> Signup and view all the answers

    'Kinetoblasts' are associated with which supergroup?

    <p>Excavates</p> Signup and view all the answers

    'Plasmoidal slime mold' belongs to which supergroup?

    <p>Amoebozoans</p> Signup and view all the answers

    What type of nuclei do fungi possess in their life cycles?

    <p>Both haploid and diploid</p> Signup and view all the answers

    What major characteristic distinguishes eukaryotes from prokaryotes?

    <p>Presence of a nucleus and membrane-bound organelles</p> Signup and view all the answers

    Why are Stramenopiles, Alveolates, and Rhizaria included in the same Supergroup?

    <p>DNA similarities</p> Signup and view all the answers

    What theory suggests that some eukaryotic organelles originated from symbiotic interactions?

    <p>Endosymbiotic Theory</p> Signup and view all the answers

    What is the number of Eukaryotic Kingdoms confirmed through DNA sequencing?

    <p>24</p> Signup and view all the answers

    Which domain includes Plants, Animals, Fungi, and Protists?

    <p>Eukarya</p> Signup and view all the answers

    What term describes the idea behind the split of former Protist Kingdoms into 21 new Kingdoms?

    <p>Kingdom Reclassification</p> Signup and view all the answers

    'SARs' refers to which Supergroup in Eukarya?

    <p>Stramenopiles, Alveolates, Rhizaria</p> Signup and view all the answers

    What drives water into the fungal cell in fungi?

    <p>Bulk flow</p> Signup and view all the answers

    In fungal life cycles, nuclei in fungi are:

    <p>Haploid</p> Signup and view all the answers

    What is the form of fungal reproduction that does not increase fungal genetic diversity?

    <p>Sporangia</p> Signup and view all the answers

    What fungal structure allows for rapid spore dispersal due to its form?

    <p>Sporangium</p> Signup and view all the answers

    Which above-ground reproductive structures are produced by many fungi for sexual reproduction?

    <p>Fruiting bodies</p> Signup and view all the answers

    What maintains the shape of the hyphae in fungi?

    <p>Turgor pressure</p> Signup and view all the answers

    What process leads to cells (hyphae) fusing before nuclei in many fungi?

    <p>Syngamy</p> Signup and view all the answers

    What is the primary purpose of fruiting bodies in fungi?

    <p>Reproduction</p> Signup and view all the answers

    Which supergroup includes organisms that have atypical or absent mitochondria?

    <p>Excavates</p> Signup and view all the answers

    What is a common characteristic among organisms in the supergroup Archaeplastids?

    <p>Photoautotrophic capability</p> Signup and view all the answers

    What distinguishes Euglenids among the Supergroup Excavates?

    <p>Possessing unique flagella</p> Signup and view all the answers

    Which group of organisms store their DNA in plastids descended from engulfed cyanobacteria?

    <p>Red Algae</p> Signup and view all the answers

    What is a feature common to Fungi cell walls and critical for their structure?

    <p>Chitin</p> Signup and view all the answers

    Which characteristic is shared by organisms in the supergroup Amoebozoans?

    <p>Have pseudopods</p> Signup and view all the answers

    What is a common trait among Choanoflagellates, Fungi, and Animals within the Supergroup Opisthokonts?

    <p>Heterotrophic nutrition</p> Signup and view all the answers

    What is the term for the above-ground reproductive structures produced by many fungi?

    <p>Fruiting bodies</p> Signup and view all the answers

    What drives water into the fungal cell in fungi?

    <p>Osmosis</p> Signup and view all the answers

    What is the primary function of sporangia in fungi?

    <p>Asexual spore dispersal</p> Signup and view all the answers

    What allows for the rapid dispersal of spores in fungi due to its form?

    <p>Sporangia</p> Signup and view all the answers

    What maintains the shape of hyphae in fungi?

    <p>Turgor pressure</p> Signup and view all the answers

    Which factor does not contribute to increasing fungal genetic diversity?

    <p>Sporangia</p> Signup and view all the answers

    What process occurs before nuclei in many fungi, contributing to their life cycles?

    <p>Hyphae fusion</p> Signup and view all the answers

    'Haploid-dominant organisms' refers to life cycles that are primarily characterized by which type of nuclei?

    <p><strong>Haploid</strong> nuclei</p> Signup and view all the answers

    What is the significance of the term 'eu' in 'eukaryote'?

    <p>Refers to 'true nucleus'</p> Signup and view all the answers

    Which event marked the beginning of the Phanerozoic Eon and dramatic animal diversification?

    <p>Cambrian Explosion</p> Signup and view all the answers

    What process occurs when a single species rapidly diversifies to fill many ecological niches?

    <p>Adaptive Radiation</p> Signup and view all the answers

    Which Kingdoms were confirmed through DNA sequencing, splitting former Protist Kingdoms into 21 new Kingdoms?

    <p>Fungi and Animals</p> Signup and view all the answers

    What is a common characteristic shared by organisms in the supergroup Opisthokonts?

    <p>Flagellated cells</p> Signup and view all the answers

    Approximately how many mass extinctions have occurred in the history of life on Earth?

    <p>5</p> Signup and view all the answers

    'Kinetoblasts' are associated with which supergroup in Eukarya?

    <p>SARs</p> Signup and view all the answers

    Which characteristic is common among organisms in the supergroup Opisthokonts?

    <p>Presence of pseudopods</p> Signup and view all the answers

    What is a unique feature of organisms in the supergroup Excavates?

    <p>Feeding groove</p> Signup and view all the answers

    What differentiates organisms in the supergroup Archaeplastids from other supergroups?

    <p>Contain plastids</p> Signup and view all the answers

    What is a common characteristic of Brown Algae and Red Algae?

    <p>Presence of flagella</p> Signup and view all the answers

    What do fungi primarily use their hyphae for?

    <p>Absorption of organic molecules</p> Signup and view all the answers

    What distinguishes Amoebozoans within the supergroup Amoebozoans?

    <p>'Amoeboid' characteristics</p> Signup and view all the answers

    Which group includes organisms with cell walls made of chitin and are multicellular?

    <p><strong>Fungi</strong></p> Signup and view all the answers

    More Like This

    Characteristics of Living Organisms
    20 questions

    Characteristics of Living Organisms

    IllustriousGray avatar
    IllustriousGray
    Characteristics of Living Organisms Quiz
    24 questions

    Characteristics of Living Organisms Quiz

    ZippyNeon avatar
    ZippyNeon
    Characteristics of Living Organisms
    6 questions

    Characteristics of Living Organisms

    ArtisticAppleTree avatar
    ArtisticAppleTree
    Characteristics of Living Organisms
    5 questions

    Characteristics of Living Organisms

    DelightedBeryllium avatar
    DelightedBeryllium
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser