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Living Things Y8

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  • What does the body use the nutrient "Lipids" for?
    Providing energy, protecting and insulating organs
  • Name the part of the digestive system where faeces is stored before it leaves the body.
    Rectum
  • Carbohydrase is an enzyme which breaks down...
    carbohydrates
  • What are some of the health issues with being overweight?
    Heart disease, Heart attack, Stroke, Diabetes, Some cancers
  • Iodine is used to test foods for which nutrient?
    Carbohydrates (starch)
  • Name the part of the digestive system where bile and other enzymes are added to the food, and nutrient pass into the blood.
    The small intestine.
  • What does the body use the nutrient "Carbohydrates" for?
    Providing energy
  • What colour is iodine, and what colour does it turn if in the presence of starch?
    Orange - Blue/black
  • After digestion, small molecules pass through the small intestine into the ___________
    blood
  • The walls of the small intestine have tiny hair-like structures. They increase the ___________ of the small intestine.
    surface area
  • Lipids can be broken down into...
    fatty acid and glycerol molecules
  • In your digestive system, what pushes the food through the gut?
    muscles - around the walls of the gut.
  • Which solution is used to test for sugar in food?
    Benedict's solution
  • The walls of the small intestine are made up of tiny hair-like structures, what are they called.
    Villi
  • Biuret solution is used to test for protein. What colour will it turn if protein is present?
    Purple
  • Name the part of the digestive system where food is chewed and saliva is added.
    Mouth
  • Protease is an enzyme which breaks down...
    Protein
  • The _____________ system, is a group of organs that work together to break down food.
    digestive
  • Carbohydrates can be broken down into...
    sugar molecules
  • Benedict's solution is blue, what colour does it turn if in the presence of sugar?
    Brick red/orange
  • During digestion large molecules are broken down into ______________ molecules
    small
  • What does the body use the nutrient "Fibre" for?
    Keeps food moving through the digestive system.
  • What does the body use the nutrient "Vitamins" for?
    Keeping the body healthy, for vision, immune system function, healthy skin, blood clotting.
  • What does the body use the nutrient "Minerals" for?
    Teeth and bones, haemoglobin,
  • Which vitamin deficiency can lead to "night blindness" (difficulty seeing in dim light)?
    Vitamin A
  • What is the word used to describe not getting enough vitamins or minerals?
    Deficiency, e.g. the patient has a vitamin A deficiency.
  • What are some of the health issues associated with being underweight?
    Poor immune system, Lack of energy, tiredness, lack of vitamins and minerals
  • Name the part of the digestive system where food is mixed with acid and enzymes.
    Stomach
  • Name the part of the digestive system where water is recovered from the undigested food.
    Large intestine
  • What is the group name for oils and fats?
    Lipids
  • What does the body use the nutrient "Protein" for?
    Growth and repair
  • Protein can be broken down into...
    Amino acids
  • A biological catalyst that breaks large molecules into small molecules is called...
    An Enzyme
  • Starch is a long chain of which type of molecule?
    Sugar
  • What are the two types of carbohydrates?
    Simple carbohydrates (sugars), Complex carbohydrates (starch)
  • What are the ways in which water is constantly lost from the body?
    Exhaling, urine, faeces, sweat, tears.
  • Lipase is an enzyme which breaks down...
    Lipids (fats and oils)
  • Which vitamin deficiency can lead to a condition called "rickets" (where your bones become weak).
    Vitamin D
  • Proteins are a long chain of which type of molecule?
    Amino Acids