Transcript Where do we get our energy?

Where do we get our energy?
Food is our fuel. Energy from the sun, originally
captured & stored by green plants, then passed along
to fruits, seeds, & animals. Eating provides energy for
all of the body’s functions, from the beating of the
heart & the elimination of wastes to the transmission
of electrical & chemical signals in the nervous
system.
Macromolecules are organic nutrients, which
means they are produced and made by living
things. There are 4 main types.
Carbohydrates
Lipids
Proteins
Nucleic Acids
CARBOHYDRATES
*made up of only 3 elements:
Carbon, hydrogen, & oxygen.
All carbs look like this in their simplest
form. One ring = monosaccharide
Two rings = disaccharide.
And if you string a bunch of monosaccharides
together you get a polysaccharide. They look
like this.
All carbs have a hexagonal shape.
WHY ARE CARBOHYDRATES IMPORTANT?
They are the body’s preferred choice of
energy .
WHAT FOODS CONTAIN CARBOHYDRATES?
Sugars and starches.
Lets make a foldable for review. Use TS
#9 as a guide.
Step 1
Step 2
Step 3
Front:
Make a riddle
for
Carbohydrates.
(folds down)
Bottom flap:
draw the structure.
(folds up)
Mid flap:
biomolecule name
and importance.
When your foldable is complete, please tape of glue it to
the left page beside the notes.
LIPIDS
Lipids contain 3 elements; carbon,
hydrogen and oxygen.
Lipids include fats and oils.
Why are lipids important?
1. Storage of energy. This way
if you run low on carbs…..
2. Thermal insulation.
3. Mechanical protection. Example surrounding
delicate organs such as the heart.
4. Waterproofing. Like the ear wax.
Lets make a foldable for review. Use TS
#9 as a guide.
Step 1
Step 2
Step 3
Front:
Make a riddle for
Lipids.
(folds down)
Bottom flap:
draw the structure.
(folds up)
Mid flap:
biomolecule name
and importance.
When your foldable is complete, please tape or glue it to
the left page beside the notes.
PROTEINS
Proteins are composed of 4 elements: carbon,
hydrogen, oxygen and nitrogen. The basic unit is
called an amino acid and it looks like this.
WHY DO YOU NEED TO EAT PROTEINS?
Proteins make up most of the structure of your body.
These are muscle cells.
Hair is also made up of protein.
Enzymes are proteins that regulate chemical reactions in
your body.
Proteins also form some of the entrances and exits
through the cell.
WHICH FOODS PROVIDE PROTEINS IN
OUR DIET?
Lets make a foldable for review. Use TS
#9 as a guide.
Step 1
Step 2
Step 3
Front:
Make a riddle
for Proteins.
(folds down)
Bottom flap:
draw the structure.
(folds up)
Mid flap:
biomolecule name
and importance.
When your foldable is complete, please tape or glue it to
the left page beside the notes.
NUCLEIC ACIDS
Nucleic acids make up DNA and RNA .
•carry your hereditary information from generation
to generation
•used to make proteins
Lets make a foldable for review. Use TS
#9 as a guide.
Step 1
Step 2
Step 3
Front:
Make a riddle
for Nucleic
Acids.
(folds down)
Bottom flap:
draw the structure.
(folds up)
Mid flap:
biomolecule name
and importance.
When your foldable is complete, please tape of glue it to
the left page beside the notes.
Let’s Review:
` IDENTIFY EACH OF THE FOLLOWING…
PROTEINS
CARBOHYDRATES
LIPIDS