Macromolecules 1
What elements makeup carbohydrates and Lipids?
carbon, oxygen, and hydrogen
What are the monomers of Lipids?
Fatty acids and Glycerols
What is a molecule that has "electrically" charged areas?
Polar molecule
What type of macromolecule is an enzyme?
protein
What is the role of a buffer when discussing pH
Helps maintain a stable pH
What are the monomers of Proteins
Amino acids
What are the functions of Lipids?
Long-term source of energy, provides insulation, provides protection to organs, make up cell membrane
What is the difference between cohesion & adhesion?
cohesion: an attraction between molecules of the same substance
adhesion: a force of attraction between different kinds of molecules
What two things can denature an enzyme?
Temperature and pH
Blood has a pH of 7.4, meaning it is considered a _____?
What is the main function of carbohydrates?
Short-term energy source
What are the monomers of Nucleic acids?
Nucleotides
Water rising in a tube is an example of what property?
Capillary action
Can a single enzyme be used over and over?
Yes!
One characteristic of life that describes maintaining an organisms internal environmment
Homeostasis
What are the monomers of carbohydrates?
Monosaccharide: glucose
What is the main function of Nucleic acid?
Store genetic information, transfer and carry genetic information, hold instructions to make proteins
What property of water helps to moderate the earth's temperature?
High Specific Heat
Why is an enzyme complex always compared to a "lock and key"?
There is only one type of key that will fit into a lock, as there is only one type of substrate that will fit into the active site of an enzyme.
When a tadpole becomes a frog, it is an example of what characteristic of life?
Grow and develop
What are the polymers of carbohydrates?
Polysaccharides: Cellulose, Starch, Glycogen
What are the functions of proteins?
Build bones, muscles, tissues; fight infections(antibodies); enzymes
Which property of water allows a water strider to walk on the surface of the water?
Surface Tension (or Cohesion)
What do enzymes do?
Speed up the rate of chemical reactions by lowering the activation energy.
What types of bond hold individual water molecules together? This helps create surface tension
Hydrogen bonds