Active Learning Module Quiz
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Questions and Answers

Which macromolecule is primarily used for energy storage in animals?

  • Lipid (correct)
  • Protein
  • Nucleic acid
  • Carbohydrate

    • Identify the function of starch in living organisms.

  • Energy source for immediate use
  • Structural support for cell walls
  • Form of stored energy in plants (correct)
  • Immune response modulation

    • Which of the following options represents a correct pairing of a macromolecule and its significance?

  • Lipid: long-term energy storage (correct)
  • Carbohydrate: building block of tissues
  • Protein: primary energy source
  • Nucleic acid: storage of lipids

    • What distinguishes a monosaccharide from a polysaccharide?

    <p>Polysaccharides consist of many sugar units.</p> Signup and view all the answers

    Which vitamin mentioned is fat-soluble?

    <p>Vitamin A</p> Signup and view all the answers

    Which food item is NOT a primary source of carbohydrates?

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

    Which choice represents a correct example of a carbohydrate and its function?

    <p>Fructose: energy source in blood</p> Signup and view all the answers

    In terms of food intake, what must be balanced alongside carbohydrates?

    <p>Lipids in moderation</p> Signup and view all the answers

    What is the primary storage form of carbohydrates in plants?

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

    Which polysaccharide is characterized by a coiled or helical structure?

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

    How do humans utilize glucose obtained from starch?

    <p>It is absorbed into the blood for energy use.</p> Signup and view all the answers

    What distinguishes glycogen from starch?

    <p>Glycogen is made by animals and has a higher degree of branching.</p> Signup and view all the answers

    What role does cellulose play in human digestion?

    <p>It aids in the smooth passage of food through the digestive tract.</p> Signup and view all the answers

    What happens to glucose when its intake is excessive?

    <p>It is stored as glycogen or fat.</p> Signup and view all the answers

    How are hydroxyl groups of adjacent glucose molecules linked in cellulose?

    <p>By hydrogen bonds.</p> Signup and view all the answers

    Which carbohydrate is characterized by straight chains and less branching?

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

    What is the primary goal of the Physical Science Grade 11 Module on Macromolecules?

    <p>To engage learners in guided and independent learning activities</p> Signup and view all the answers

    Which of the following skills is NOT one of the 21st century skills emphasized in the module?

    <p>Technical Proficiency</p> Signup and view all the answers

    Who was involved in the collaborative design of the module?

    <p>Educators from the Schools Division Office of Pasig City</p> Signup and view all the answers

    What does the hand symbolize in the learning resource?

    <p>Empowerment and capability of the learner</p> Signup and view all the answers

    What role is expected from the facilitator of the module?

    <p>To assist learners in managing their own learning</p> Signup and view all the answers

    What is the significance of the phrase 'Your academic success lies in your own hands' in the module?

    <p>Encourages self-directed learning and responsibility</p> Signup and view all the answers

    Which of the following is a feature of the module intended for the learner?

    <p>Opportunities for guided and independent learning at their own pace</p> Signup and view all the answers

    What is highlighted as an essential competency in the module's educational approach?

    <p>Collaborative learning strategies</p> Signup and view all the answers

    What effect do double bonds have on the melting point of fatty acids?

    <p>They lower the melting point.</p> Signup and view all the answers

    Which of the following fatty acids is liquid at room temperature?

    <p>Linoleic acid</p> Signup and view all the answers

    Which type of lipids are characterized by ring-like structures?

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

    What is a key function of cholesterol in eukaryotic cells?

    <p>To increase fluidity of the cell membranes.</p> Signup and view all the answers

    Which of the following oils is produced by plants?

    <p>Coconut oil</p> Signup and view all the answers

    Which fatty acid has the highest melting point?

    <p>Stearic acid</p> Signup and view all the answers

    What happens when cholesterol accumulates in the body in large amounts?

    <p>It can be detrimental to health.</p> Signup and view all the answers

    What type of fatty acids do fats primarily contain?

    <p>Saturated fatty acids</p> Signup and view all the answers

    Which type of intermolecular force is present in water (H2O)?

    <p>Dipole-Dipole interactions</p> Signup and view all the answers

    Which carbohydrate is categorized as a polysaccharide?

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

    Which of the following statements about cholesterol is true?

    <p>Cholesterol is essential for cellular function.</p> Signup and view all the answers

    What type of intermolecular force is primarily found in nonpolar molecules like CH4?

    <p>London Dispersion Forces</p> Signup and view all the answers

    Which of the following substances contains both dipole-dipole interactions and London dispersion forces?

    <p>PCl3</p> Signup and view all the answers

    What is the primary structural feature of cellulose?

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

    Which carbohydrate is incorrectly classified?

    <p>Fructose as a polysaccharide</p> Signup and view all the answers

    Lipids are primarily characterized as which type of molecules?

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

    Study Notes

    Module Overview

    • Focus on macromolecules: carbohydrates and lipids.
    • Developed collaboratively by educators from Pasig City's Schools Division Office.
    • Aims to support guided and independent learning with emphasis on 21st-century skills, including communication, collaboration, creativity, critical thinking, and character.

    Expectations

    • Define macromolecules and understand their importance.
    • Distinguish structures and functions of carbohydrates and lipids.
    • Recognize the balance of carbohydrates and lipids in food intake.

    Macromolecules: Carbohydrates

    • Carbohydrates are crucial energy sources; polysaccharides include starch (plants) and glycogen (animals).
    • Starch consists of amylose (coiled structure) and amylopectin (branched structure); key for energy storage.
    • Humans digest starch by breaking down glucose units, which provide steady energy.
    • Cellulose, another polysaccharide, is not digestible by humans but plays a role in digestive health.

    Macromolecules: Lipids

    • Lipids include saturated (fats) and unsaturated (oils) fatty acids.
    • Saturated fatty acids have no double bonds; typically solid at room temperature (e.g., butter).
    • Unsaturated fatty acids have one or more double bonds, which lower melting points; typically liquid (e.g., oils).
    • Cholesterol is a significant steroid found in animal cell membranes, essential for various cellular functions, including hormone synthesis and maintaining membrane integrity.

    Activity Highlights

    • Activities are designed to engage students and improve understanding of carbohydrate classification and lipid properties.
    • Students participate in hands-on learning to solidify knowledge on carbohydrate structures and lipid functions.

    Key Concepts of Fatty Acids

    • Structural formulas for common fatty acids include:
      • Lauric (C12), melting point 44°C
      • Myristic (C14), melting point 53°C
      • Palmitic (C16), melting point 63°C
      • Stearic (C18), melting point 70°C
      • Oleic (C18, unsaturated), melting point 16°C
      • Linoleic (C18, unsaturated), melting point -5°C

    Vitamins and Nutrients

    • Fat-soluble vitamins:
      • Vitamin A is crucial for healthy living.
    • Understanding nutrient metabolism is vital for maintaining health.

    Recap of Learning Points

    • Polysaccharides, such as starch, glycogen, and cellulose, play different roles in energy storage and supply.
    • Dietary balance is essential; excessive glucose intake may lead to health issues as it converts to glycogen or fat.
    • Proper digestion relies on understanding how carbohydrates and lipids function in the body.

    Post-Test Summary

    • Reflect on knowledge acquired regarding carbohydrates, lipids, and their respective functions.
    • Assess understanding of the material through a series of pre-test and post-test questions.

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    Quiz Team

    Description

    This quiz is designed to enhance your active learning experience by assessing your prior knowledge and understanding of the key concepts in the module. It includes sections on expectations, pre-tests, and recaps to measure your learning progress.

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