Biology Module 2: Nutrient and Gas Requirements
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Questions and Answers

What is the main difference in nutrient and gas requirements between autotrophs and heterotrophs?

  • Autotrophs require more oxygen, while heterotrophs require more carbon dioxide
  • Autotrophs require more nitrogen, while heterotrophs require more phosphorus
  • Autotrophs produce their own food, while heterotrophs obtain their energy from other sources (correct)
  • Autotrophs require more water, while heterotrophs require more sunlight

    • What is the main function of alveoli in mammals?

  • To increase the surface area for gas exchange (correct)
  • To store oxygen for future use
  • To filter out impurities from the air
  • To warm and humidify the air

    • What is the main function of the vascular system in plants?

  • To store energy-rich compounds such as starch
  • To release oxygen into the atmosphere
  • To regulate water loss through transpiration
  • To transport nutrients and water from the roots to the leaves (correct)

    • What is the transpiration-cohesion-tension theory related to?

    <p>The movement of water through the xylem</p> Signup and view all the answers

    What is the main difference between open and closed transport systems in animals?

    <p>Open systems are found in invertebrates, while closed systems are found in vertebrates</p> Signup and view all the answers

    What is the main difference between the transport systems in plants and animals?

    <p>Plant transport systems are open, while animal transport systems are closed</p> Signup and view all the answers

    Study Notes

    Nutrient and Gas Requirements

    • Autotrophs and heterotrophs have different nutrient and gas requirements, with autotrophs producing their own food through photosynthesis and heterotrophs obtaining energy by consuming other organisms.
    • Plant structures, such as leaves, play a crucial role in photosynthesis, with products being traced and moved throughout the plant.
    • Gas exchange structures, including alveoli in mammals and leaf structure in plants, facilitate the exchange of oxygen and carbon dioxide.
    • Microscopic and macroscopic structures, such as respiratory systems, are adapted to facilitate gas exchange in different organisms.

    Transport Systems

    • The composition of the transport medium changes as it moves around an organism, with differences in structure and function between animal and plant transport systems.
    • Plant vascular systems and animal cardiovascular systems are examples of transport systems that have distinct structures and functions.
    • Open and closed transport systems are found in animals, with plants having a unique vascular system.
    • Comparison of transport systems can be facilitated through physical and digital models, as well as microscopic and macroscopic samples.

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    Description

    Explore the differences in nutrient and gas requirements between autotrophs and heterotrophs, and investigate structures in plants and animals related to photosynthesis and gas exchange.

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