Quiz  /  Carbohydrates Class 9 MCQ Questions With Answers

  • 1. 
    Carbohydrates yield how many Calories per gram?

  • 0 Cal/gram
  • 9 Cal/gram
  • 4 Cal/gram
  • 2.25 Cal/gram

  • 2. 
    Which is not a chemical element needed to build sugars?

  • Carbon
  • Oxygen
  • Nitrogen
  • Hydrogen

  • 3. 
    What makes up the disaccharide sucrose?

  • glucose + glucose
  • glucose + fructose
  • glucose + galactose
  • glucose + maltose

  • 4. 
    ______+_____= Maltose

  • glucose + glucose
  • glucose+ fructose
  • glucose + galactose

  • 5. 
    Sugars all end with what three letter ending?

  • -ote
  • -ate
  • -ase
  • -ose

  • 6. 
    Which polysaccharide is used by plants to store glucose?

  • glycogen
  • cellulose
  • starch
  • chitin

  • 7. 
    Stored in the liver

  • Starch
  • Glycogen
  • Cellulose

  • 8. 
    What two monosaccharides make up maltose?

  • glucose + galactose
  • glucose + glucose
  • glucose + fructose
  • glucose + glycogen

  • 9. 
    Some carbohydrate foods are ________

  • fruits
  • grains
  • vegetables
  • all the above

  • 10. 
    How many sugar units make up monosaccharides?

  • one
  • two
  • three
  • zero

  • 11. 
    How many sugar units make up disaccharides?

  • one
  • two
  • three
  • zero

  • 12. 
    Molecules that occur naturally in living organisms.

  • Biomolecules
  • Compounds
  • Organics
  • Inorganics

  • 13. 
    Which health problems is a consequence of eating too much added sugar?

  • overweight
  • heart disease
  • diabetes
  • all of the above

  • 14. 
    Carbohydrates

  • 1:3:1 ratio
  • 2:2:2 ratio
  • 1:2:1 ratio
  • 1:2:3 ratio

  • 15. 
    Which has more energy, 1.0 g of carbohydrate or 1.0 g of lipid?

  • Carbohydrate
  • Lipid

  • 16. 
    Carbohydrates are comprised of Carbon, Hydrogen, Oxygen, and Nitrogen

  • True
  • False

  • 17. 
    What is not a type of carbohydrate?

  • Fat
  • Fiber
  • Starch
  • Sugar

  • 18. 
    The process of adding water in order to break bonds within a polymer....

  • Dehydration Synthesis
  • Hydrolysis

  • 19. 
    Molecules primarily made of elements found in living organisms. Organic molecules make up living organisms. Organic molecules are made of the elements of life: CHNOPS

  • Inorganic
  • Carbonic
  • Organic
  • Hydraulic

  • 20. 
    The scientific name for table sugar is ___

  • lactose
  • sucrose
  • galactose
  • glucose

  • 21. 
    What type of carbohydrate is this?

  • polysaccharide
  • disaccharide
  • monosaccharide
  • it isn't a carbohydrate

  • 22. 
    The process of removing water in order to form a bond between monomers is called....

  • Dehydration Synthesis
  • Hydrolysis

  • 23. 
    ______+_____= lactose

  • glucose + glucose
  • glucose+ fructose
  • glucose + galactose

  • 24. 
    Starch is an example of a polysaccharide found in plants. What is the monomer of starch (Hint: it is an example of a monosaccharide)?

  • sucrose
  • glucose
  • glycogen
  • lactose

  • 25. 
    A single unit of sugar is referred to as:

  • Monosaccharide
  • Monocarbohydrate
  • Mononutrient
  • Monopolymer

  • 26. 
    These are all properties of a disaccharide EXCEPT:

  • made up of two sugars
  • sucrose
  • 2 monosaccharides joined by dehydration synthesis
  • ratio of 1:2:1

  • 27. 
    Important to the structural integrity of plant cells, this is the single most popular polysaccharide in the world.

  • Starch
  • Glycogen
  • Cellulose
  • Chitin

  • 28. 
    Can form 4 bonds and is the "backbone of life"

  • Phosphorus
  • Nitrogen
  • Oxygen
  • Carbon
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