Download The learner will be able to identify how elements

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Standard S.7.3.2 The learner will be able to identify how elements, atoms, and molecules
contribute to the development and function of cells.
Read the following statements and check agree or disagree for each one.
Agree or Disagree
_____ _____ 1. Elements are matter that is composed of atoms that have
the same atomic number.
_____ _____ 2. Carbohydrates are organic compounds that contain the most energy.
_____ _____ 3. Only 4 elements make up the cells of living organisms.
_____ _____ 4. Only organic molecules can be found in living things.
_____ _____ 5. Without water, most chemical reactions within cells could not take
place.
Hint: To help you learn from a text, practice the strategy of surveying before you read.
Survey of Chapter 3 section 1 pages 52-55
Headings and Subheadings
Pictures
Maps, Charts, Diagrams
Vocabulary
Questions
Answers
Essential question: What are the four main kinds of organic molecules in living
things?
Here is the organizer that we worked on during class- with notes included.
Organic Molecules
Type or Class of
molecules
Monomer or
building blocks
Polymer (many
Proteins
Amino acids-
(protein synthesis
is an important cell
function that we will
explore in greater
detail in the next
chap.)
There are only 20.
They combine to
form thousands of
different proteins.
Sequence of
amino acids
determines shape
which determines
function!
Enzymes,
hormones,
identifier
proteins, carrier
proteins,hemoglobin,
antibodies,
spindle fibers,
myosin and actin
(proteins that
form muscles)
Disaccharidessucrose,lactose,
maltose
Carbohydrates Sugars
Plants store
energy during
photosynthesis in
the bonds of
sugar molecules
Lipids
Monosaccharides:
Glucose
Fructose
Ribose
Deoxy-ribose
(simple sugars)
fatty acids
and glycerol
Atoms
Why important
to living things
CHONS
Enzymes speed
chemical
reactions in living
things;
Insulin-hormone
regulates glucose
in blood;
components of
membranes and
organelles
monomers bonded
together)macromolecules
(Examples)
Peptide bonds
CHO
Glucose is energy
source for cells,
cellulose is a
component of
cells
Chitin –polymer of
glucose and
amino acid
(exoskeletons)
C H O (P)
Contain even
more energy than
carbohydrates;
phospholipids
make up cell
membranes;
Chloesterol
needed to make
cell membranes,
nerve cells, some
hormones, vit.D,
and Bile
CHONP
DNA contains
instructions that
cells need to
carry out all the
functions of life;
genetic material
passed on to
offspring
RNA impt. in
making proteins
PolysaccharidesStarch
Cellulose
Glycogen –
animal starch
Steroids, oils,
waxes
Chloesterol
(carried through
the bloodstream
by large molecules
called lipoproteinsLDL (increases)
and HDL
(decreases) that
affect the tendency
to build up fat in
vessles- ratio of
LDL to HDL is
impt.
Nucleic Acids
Nucleotides
ATP is a
nucleotide used
to supply energy
(are a trio of a
phosphate, a
sugar, and N
containing base)
DNA, RNA
How do our bodies obtain these essential molecules for all life processes?