Science - Biology

    Cards (101)

    • What is the equation for photosynthesis?
      Carbon dioxide + Water → Glucose + Oxygen
    • What is the role of chlorophyll in photosynthesis?
      It absorbs light energy for the reaction
    • What is the independent variable in the experiment on light intensity's effect on photosynthesis?
      Distance from light source
    • What is the dependent variable in the photosynthesis experiment?
      The number of bubbles produced per minute
    • Why is sodium hydrogen carbonate used in the experiment?
      To provide a source of COâ‚‚
    • Why is an LED light source used in the experiment?
      It gives off minimal heat energy
    • What are the control variables in the photosynthesis experiment?
      • Concentration of sodium hydrogen carbonate solution
      • Temperature of the water
      • Size of Cabomba cuttings
    • What happens to the rate of photosynthesis as temperature increases?
      It increases until enzymes denature
    • What is the purpose of using a gas syringe in the experiment?
      To measure the volume of oxygen produced
    • What is the definition of photosynthesis?
      Process by which plants make their own food
    • What are the products of photosynthesis?
      Glucose and Oxygen
    • What type of reaction is photosynthesis?
      Endothermic reaction
    • Where is chlorophyll located in plant cells?
      In chloroplasts, especially in palisade cells
    • What factors affect the rate of photosynthesis?
      Light intensity, COâ‚‚ concentration, temperature
    • How does light intensity affect photosynthesis?
      Higher light intensity increases the rate
    • What happens to the rate of photosynthesis if carbon dioxide concentration increases?
      The rate will increase
    • How does temperature affect the rate of photosynthesis?
      Higher temperatures increase reaction rates
    • What is phagocytosis?
      Process where cells engulf pathogens
    • What are pathogens?
      Microorganisms that cause infectious disease
    • How do antibiotics work?
      They kill bacteria without harming host cells
    • Who discovered penicillin?
      Alexander Fleming
    • What is the difference between bacteria and viruses?
      Bacteria can be treated with antibiotics
    • What do painkillers do?
      Relieve symptoms without killing pathogens
    • What is a vaccine?
      A dead or inactive form of a pathogen
    • How do vaccines work?
      They stimulate antibody production in the body
    • What is the role of lymphocytes?
      Recognize antigens and produce antibodies
    • What are antitoxins?
      Chemicals that neutralize toxins from pathogens
    • What are the methods of disease prevention?
      • Sterilizing water
      • Personal and food hygiene
      • Vaccination
      • Contraception
    • What is the method of spread for measles?
      Inhaling droplets from coughing and sneezing
    • What are the symptoms of gonorrhea?
      Painful urination and yellow/green discharge
    • How is salmonella spread?
      Through contaminated food or water
    • What is the treatment for HIV?
      Antiretroviral drugs
    • What is the role of the heart?
      To pump blood around the body
    • What is double circulation?
      Two systems for blood circulation in the body
    • Why is the left ventricle thicker than the right ventricle?
      To pump blood at high pressure
    • What is the function of the pacemaker cells?
      To regulate the heartbeat
    • What is the process of photosynthesis?
      Carbon dioxide + water + light → oxygen
    • What is the role of chlorophyll in photosynthesis?
      It absorbs light energy for photosynthesis
    • What is the function of the cytoplasm in a cell?
      Place where reactions take place
    • What does the nucleus contain?
      Genetic information
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