Week of February 16th through February 19th
Objective: To explore the
Standards
resource
resource
resource
U1L2 Chemistry of Cells
p. 14-23
#1 The chemical formula for water is H2O. The H stands for Hydrogen
and the O stands for oxygen. If you do not get enough water you will
dehydrate , have organ failure, and then expire.
#2 What do you think you are made of?
3 Atom the smallest
purest unit of matter
Molecule two or more
atoms of the same or
different elements bonded
Compounds must have
different elements
C
The element/atom
Carbon
C2
Two or more atoms of C
make a molecule
NOT A COMPOUND
C2H4
Different atoms bonded
are compounds and
molecules
Atom the smallest
purest unit of matter
Molecule two or more
atoms of the same or
different elements bonded
Compounds must have
different elements bonded
O
The element/atom
oxygen
O2
Two or more atoms of O
make a molecule
NOT A COMPOUND
H2O
Different atoms bonded
are compounds and
molecules
CO2
C
H
H2
CO
N2
C 6 H 12 O6
https://www.youtube.com/watch?v=R1R
MV5qhwyE
5:52
What is an atom – Basic for Kids
4
Quizlet U1L2 Cells
http://quizlet.com/72185647/cells-and-heredity-fusion-u1l2-chemistry-of-life-flashcards/
Biology
AMCells
To
So
PC
EB
Chemistry
AMCompounds
Chemistry
Atoms join to form Molecules
Molecules of different atoms are Compounds
atom
molecule
compound
Fe
The element/atom iron
Fe2
Two or more atoms of Fe
make a molecule
NOT A COMPOUND
Fe2O3
Different atoms bonded are
compounds and molecules
Start here on February 24th through February 27th
Is the element that makes up most of the human body
Gold if it is 100% Au atoms is a pure element,
but the human body is made
of molecules and compounds in cells.
are examples of nutrients
are the building blocks of proteins
NOTES ON NEXT SLIDES
NEEDED FOR
INCREASED DOK
NOTES ON NEXT SLIDES NEEDED FOR
INCREASED DOK
FAT MOLECULE OR SIMILAR,
SUCH AS WAXES AND
STERIODS.
MADE OF SMALLER
AMINO ACIDS
STORE ENERGY FOR THE CELL AND OTHER JOBS
DO NOT MIX WITH WATER
PROTEINS BREAK DOWN INTO THE SMALLER AMINO ACIDS
WHICH THEN REGROUP TO MAKE NEW PROTEINS WHICH
BUILD AND REPAIR BODY STRUCTURES AND REGULATE
BODY PROCESSES. ENZYMES ARE PROTEINS THAT CATALYZE
OR SPEED UP REACTIONS.
MOLECULE CONTAINS SUGAR,
STRACH, OR FIBER.
SIMPLE CARBS = 1 OR A FEW SUGARS
COMPLEX CARBS=MANY SUGAR or Starches
MADE OF SMALLER
NUCLEOTIDES
USED AS A SOURCE OF ENERGY
AND FOR ENERGY STORAGE
MOLECULES THAT CARRY INFORMATION IN THE CELL
TELLS . 1 TYPE IS DNA FOUND IN ALL CELLS. DNA TELLS
CELLS WHICH MOLECULES TO MAKE SUCH AS PROTEINS.
NUCLEOTIDE TELLS ORDER OF AMINO ACID AND BUILDS
SPECIFIC PROTEIN
Memory Strategies
Fat Lip –
movie stars use steroids to get bigger lipsWax is put on lips to prevent chapping
Pro Teens get A A so Proteins break down
into smaller Amino Acids
Pro positive so lots of repairing structure and regulating
body processes
https://www.youtube.com/watch?v=eB793h16R8A Lipids I’ve got Lipids Song
Pro Teens get A A so Proteins break down
into smaller Amino Acids
Pro positive so lots of repairing structure and regulating
body processes
https://www.youtube.com/watch?v=DipuIBLJ3ng The Protein Song
Memory Strategies
Car for speedy energy
https://www.youtube.com/watch?v=l1RsfMMY1vg Carbohydrates yours song
https://www.youtube.com/watch?v=H8TKm-fdEl8 3:09 Carbohydrate song cch
NAPs
Nucleotide – tells the order of amino acids
Amino acids-builder of other molecules such as
Proteins-used to build, repair, regulate
11 PICTURE USED TO EXPLAIN HOW
PHOSPHOLIPIDS FORM A BARRIER
BETWEEN WATER IN THE CELL AND WATER
OUT OF THE CELL
Phospholipid Bi-LayerHead is hydrophilic
Hydrophilic – ATTRACTED to water
Head is outer part of cell membrane
Tail is hydrophobic
Hydrophobic – REPELS water
tail points inward
OUTSIDE OF CELL WATER
Hydrophilic head
ATTRACTED TO WATER
Hydrophobic REPEL WATER
Hydrophobic tail
REPELS WATER
Hydrophobic tail
REPELS WATER
Hydrophilic head
ATTRACTED TO WATER
INSIDE OF CELL WATER
HEAD
Hydrophilic
ATTRACTED TO WATER
contains
Hydrophobic
• negatively charge phosphate
group REPEL WATER
• Glycerol
TAIL
Hydrophobic tail
REPELS WATER
• 2 long fatty acid hydrocarbon chains
INSIDE OF CELL WATER
OUT OF THE CELL TOO
MUCH WATER IS N
THE CELL SO AS THE
HEADS ATTRACT
TO WATER BUT
THE TAILS WILL REPEL
THE WATER
PREVENTING
WATER FROM
ENTERING
THE CELL.
FURTHER
PROTECTION
OFFERED
BY BILAYERING. TWO
SETS OF LIPID TAILS
REPEL
THE WATER
Hydrophobic REPEL WATER
IN THE CELL TOO
MUCH WATER
SO TAILS WILL
REPEL MORE WATER
EXPLAIN IN YOUR NOTEBOOKS HOW THE BI-PHOSPHOLIPID LAYER OF
THE CELL MEMBRANE WOULD HELP RESTORE HOMEOSTASIS T0 THE
CELLS?
12
Hydrophilic
Head
ATTRACTED
TO
WATER
Hydrophobic
tail
REPELS
WATER
14 A PLUG ON A BECAUSE WHEN
IT IS IN THE WATER STAYS IN THE
TUB BUT WHEN IT IS OUT THE
WATER GOES OUT OF THE TUB,
MORE WATER CAN BE ADDED TO
KEEP A HOMEOSTASIS EVEN FLOW
AND IF TOO MUCH IS ADDED
THERE IS A DRAIN HOLE TO LET IT
OUT UNDER THE SPICKET
Make up the phospholipid bi layer of the cell membrane
If looked at individually C and H make up the tail of the phospholipid layer
H2O in and out of cell
17 Lipids – are fats that store energy
Carbohydrates-are sugars that are quick energy
Proteins-made of AA build, repair, & regulate
Nucleic Acids-carry information like DNA
Smallest unit one atom of a pure substances is an element
2 or more atoms of the same or different elements bonded
An atom is a pure substances (an element). Two or more atoms are a
Molecule.
5 Lipids – are fats that store energy
Carbohydrates-are sugars that are quick energy
Proteins-made of AA build, repair, & regulate
Nucleic Acids-carry information like DNA
Refer to prior
slide for
question #11
7 and 8
An atom can only be
one element,
An atom is pure.
The picture has two
Different types of atoms
so it is a
Molecule and a
compound.
Water is 2/3 of the mass of the cell.
Water moves in and out of the cell via
the bi phospholipid cell membrane
Uses active transport which
Requires energy in a process called
osmosis to move water
Concentration in cell
Lower than out of cell
So osmosis moves water
Into cell
Concentration in homeostasis
Concentration in cell
higher than out of cell
So osmosis moves water
Out of cell
Concentration in cell
Lower than out of cell
LIKE IN SALTY ENVIRONMENT
So osmosis moves water
Into cell