Q.1
What is a catalyst?
  • Process that changes one set of chemicals into another
  • Element or compound that enters into a chemical reaction
  • Element or compound produced by a chemical reaction
  • Substance that speeds up the rate of the chemical reaction
Q.2
Which is the strongest acid?
  • ph of 1
  • ph of 4
  • ph of 7
  • ph of 9
Q.3
Enzymes are
  • nucleic acids
  • proteins
  • lipids
  • carbohydrates
Q.4
Which of the following is correctly matched?
  • Proteins-nucleotides
  • Lipids-glycerol
  • Carbohydrates-amino acids
  • DNA-glucose
  • None of the above
Q.5
What is the function of a protein?
  • It is involved in short-term energy store.
  • It is involved in almost every function of the human body.
  • It transmits genetic information.
  • It is involved in long-term energy and body insulation.
Q.6
What is a substrate?
  • The molecules that binds to the enzyme at the active site, and causes the enzyme to carry out a task.
  • The molecule that does not fit into an enzyme, and has no effect on the enzyme.
  • The molecule that binds to a place other than the active site, and caused the enzyme to carry out a task.
  • A water molecule that breaks down monomers.
Q.7
Monomer of a protein
  • nucleotide
  • lipid
  • monosaccharide
  • amino acid
Q.8
DNA contain
  • Ribose sugar
  • Deoxy Ribose sugar
  • Arabinose
  • Any sugar
Q.9
Examples of nucleic acids?
  • DNA and RNA
  • carbohydrates
  • potatoes
  • meats
Q.10
Which is the strongest base?
  • ph of 1
  • ph of 4
  • ph of 7
  • ph of 9
Q.11
Animals store carbohydrates as _______________ while plants store carbohydrates as ______________.
  • glycogen, starch
  • sugar, starch
  • starch, glucose
  • glycogen, glucose
Q.12
Amino acids are the monomers of
  • Carbohydrates
  • Lipids
  • Proteins
  • Nucleic Acids
Q.13
How many atoms are there TOTAL in:H2SO4
  • 6
  • 5
  • 7
  • 3
Q.14
Which organic molecule is paired with its function?
  • nucleic acid : to store energy
  • proteins : to provide insulation
  • lipids : to regulate metabolic processes
  • carbohydrate : to provide quick–release energy
Q.15
How many valence electrons are present in Carbon?
  • 6
  • 4
  • 3
  • 8
Q.16
How many calories per gram do lipids contain?
  • 9 cal/g
  • 0 cal/g
  • 4 cal/g
  • 7 cal/g
Q.17
How many calories per gram do carbohydrates contain?
  • 4 cal/g
  • 0 cal/g
  • 9 cal/g
  • 10 cal/g
Q.18
The element _______is found in all of the organic compounds.
  • Iron
  • Nitrogen
  • Carbon
  • Oxygen
Q.19
What is the function of a nucleic acid?
  • it transmits genetic information.
  • It is involved in body insulation.
  • It provides your body with the energy it needs.
  • It is involved in energy storage.
Q.20
What is the function of nucleic acids?
  • store genetic information
  • store energy (long-term)
  • store energy (short-term)
  • build skin, hair, nails, muscles
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