brainstorm a list of factors that cause people to behave differently. personality experiences...
TRANSCRIPT
Brainstorm a list of factors that cause people to behave
differently.Personality
Experiences
Heredity
Environment
Friends/Family
Society
WHY DO CELLS BEHAVE DIFFERENTLY?
•Smallest unit of matter known.
•Composed of protons, neutron, electrons
•100 million atoms lined up in a row = one centimeter
•A pure substance that consists of entirely one type of atom•Represented by letters or symbols•Approximately two dozen are found in living things
•In total, 117 elements have been observed as of 2009, of which 98 occur naturally on Earth.
Atomic number: # of protons
There are an equal number of
electrons as protons
Atomic Mass: # of protons + # of neutrons
•Substances that are formed by the chemical combination of two or more elementsMost abundant compound on Earth is___________
water
•Elements have very different properties “actions/appearances” than the compounds that they form.
H = Hydrogen = gas
O = Oxygen = gas
H2O = water = liquid
•chemical compounds whose molecules contain carbon and hydrogen
•Found in all living things
Examples •C6H1206 ( SUGAR)
•CH4 (Methane)
•Is any member of a large class of chemical compounds of molecules that contain earths elements
•Not capable of creating life, no combination makes life Examples
•NaCl • H2O•CO2
Compounds
Organic Inorganic
Contains Carbon & Hydrogen always
together!Example: C6H12O6
glucose (sugar)
Contains the earth’s element
Example: H2O water
pH is a scale designed to describe whether a compound is an acid or a base AND its strength.
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Neutral
BELOW 7BELOW 7, THE SUBSTANCE IS ACIDICACIDIC.
ABOVE 7ABOVE 7, THE SUBSTANCE IS BASICBASIC.
IF THE pH IS 7pH IS 7, THEN IT IS NEUTRAL.NEUTRAL.
Measures the concentration of H+ ions in a solution.
Using to test the level of pHProvides a specific number
Used to identify if the substance is an acid or a base
TASTE SOUR, REACT WITH METALS AND TURN LITMUS PAPER RED
TASTE BITTER, TASTE BITTER, FEEL SLIPPERY, FEEL SLIPPERY, REACT WITH REACT WITH LITMUS PAPER LITMUS PAPER TO TURN IT TO TURN IT BLUEBLUE
Used to test for the presence of glucose
Used to test for the presence of proteins
Used to test for the presence of starch