Q.1
Which of the following is NOT a carbohydrate?
  • Glucose
  • Lactose
  • Insulin
  • Starch
  • Sucrose
Q.2
Which of the following is an organic compound?
  • H2O
  • C6H12O6
  • NH2
  • OH
Q.3
Why does ice float?
  • As water freezes, it expands and its density decreases.
  • As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
  • As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
  • As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
Q.4
A base is a substance that
  • releases Hydroxide ions when dissolved in water
  • releases Hydrogen ions when dissolved in water
  • does not release any ions when dissolved in water
Q.5
How many different amino acids are there?
  • 4
  • 20
  • 6
  • 46
Q.6
Nucleotides are monomers of
  • Carbohydrates
  • Lipids
  • Proteins
  • Nucleic Acids
Q.7
What is the monomer of a lipid?
  • Nucleotide
  • Fatty Acid & Glycerol
  • Polysaccharide
  • Amino Acid
Q.8
Lipids are made of
  • Fatty acid only
  • Glycerol only
  • Both glycerol and fatty acid
  • Non of the above
Q.9
Monosaccharides are monomers of
  • Carbohydrates
  • Lipids
  • Proteins
  • Nucleic Acids
Q.10
What elements make up carbohydrates?
  • carbon, nitrogen, hydrogen, oxygen
  • carbon, oxygen, phosphours
  • carbon, nitrogen, oxygen
  • carbon, hydrogen, oxygen
Q.11
What is the purpose of an enzyme?
  • block an unwanted chemical reaction
  • create activation energy
  • cause or speed up a chemical reaction
  • permanently bond with a substrate
Q.12
Butter is an example of a
  • carbohydrate
  • unsaturated fat
  • saturated fat
  • protein
Q.13
Which is not an example of a lipid?
  • lettuce
  • olive oil
  • butter
  • bacon fat
Q.14
What determines a protein's function?
  • color
  • shape
  • size
  • temperature
Q.15
The substances listed on the left side of a chemical equation are the
  • Products
  • Coefficients
  • Precipitates
  • Reactants
Q.16
What particles are found in the nucleus of an atom?
  • electron and proton
  • proton and neutron
  • electron and neutron
Q.17
Water is classified as an inorganic compound because it
  • does not contain carbon
  • does not contain nitrogen
  • contains hydrogen
  • contains oxygen
Q.18
To which class of organic compounds do enzymes belong?
  • proteins
  • fatty acids
  • nucleic acids
  • monosaccharides
Q.19
What is the ratio of hydrogen to oxygen in carbohydrates?
  • 1:1
  • 2:1
  • 3:1
  • 4:1
Q.20
What is the function of carbohydrates in your body?
  • Speed up chemical reactions.
  • Give immediate energy.
  • Help to store energy.
  • Build cell walls in plants.
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