Properties of Water
Allows for water to form into droplets
Surface Tension
A biological catalyst the lowers activation energy
Enzyme
What format do we prefer hypothesis to be stated in?
“If...then...because”
What are the four main classes of macromolecules?
Carbohydrates
Lipids
Nucleic Acids
Proteins
Which axis does the independent variable belong to on a good graph?
X axis
This property of water demonstrates the attraction of one water molecule to a different molecule
Adhesion
Define denature
Changing the shape of the enzyme and prevents it from working
What step of the scientific method is represented in the following: Does increasing percentage of hydrogen peroxide increase reaction rate of catalase?
Observe and Question
What is the monomer of a carbohydrate?
Monosaccharide
Which variable goes after the “If” and the “then” of a hypothesis?
If (independent) then (dependent)
Does water expand or contract going from liquid to ice
Expand
What are two things cause an enzyme to denature?
When temperature and pH are not in optimal ranges
What step of the scientific method is represented in the following (NAME); The enzyme catalase reacts faster in 3% hydrogen peroxide compared to less percentages.
Communicate Results
What are the three types of nucleic acids?
DNA, RNA, ATP
Water “Universal Solvent” property means water is able to do what actions?
Dissolves a wide variety of polar substances
and/or
Pull apart bonds of other substances
Water molecules tend to "stick"a together because of positively and negatively charged "ends" of the molecule. So, we say it is what kind of molecule?
Polar
What makes an enzyme work harder and faster?
Activators
Why do we need to background research?
What is dehydration synthesis?
Monomers link to form polymers
LOSS of water (water present in the products)
What is the general formula for a carbohydrate?
(CH2O)n
How do cohesion and adhesion work together to allow for capillary action in plants?
Cohesion - holds water together allowing for water to be dragged into the plant against gravity
Adhesion - water is attracted to vessels to allow water to travel throughout plant
Explain the enzyme-substrate complex
A substrate/reactant bonds to the active site on an enzyme where a chemical reaction occurs that breaks the substrate into its products
Identify the independent and dependent variable; If the percentage of hydrogen peroxide increases then the catalase enzyme reaction will occur more frequently because of the increased concentration of substrate
IV - concentration of hydrogen peroxide
DV - reaction frequency
What are the two elements in every macromolecule?
Hydrogen and Carbon
What are the three functions of a lipid?
Energy storage
Structural support in cells
Reactants in metabolic reactions