Macromolecules
Basics
Basics
What element is found in all macromolecules?
Carbon
Which macromolecule forms cell membranes?
Lipids
What do enzymes do to reactions?
Speed them up
Substance made after the reaction?
Product
True/False: Enzymes cannot be reused.
False
What macromolecule gives fast, quick energy?
Carbohydrates
Glucose is what?
A carbohydrate (monosaccharide)
What molecule does an enzyme work on?
Substrate
Look at the picture. What type of reaction is it?
Decomposition
Energy needed to start a reaction?
Activation energy
What stores long-term energy?
Lipids
Enzymes belong to which group?
Proteins
Where does the substrate join to the enzyme?
Active Site
Look at the picture. What type of reaction is it?
Synthesis
Reactants change into _____.
Products
What is the monomer of a protein called?
Amino Acids
Monomer of a carbohydrate?
Monosaccharide
What does “denature” mean?
Enzyme changes shape and cannot work
Two things that denature enzymes?
Temperature & pH
DNA and RNA are what type of Macromolecule?
Nucleic Acids
Which molecule carries genetic info?
Nucleic acids (DNA/RNA)
Monomer of nucleic acids?
Nucleotide
Why can one enzyme only work with one specific substrate?
A. Because the enzyme changes shape often
B. Because the substrate chooses the enzyme
C. Because the active site has a unique shape that only one substrate fits
D. Because the enzyme is made of carbohydrates
C. Because the active site has a unique shape that only one substrate fits
7
Which two (2) Macromolecules are a source of energy
Lipids and Carbohydrates