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.

Front: Make a riddle for Carbohydrates.(folds down)

Bottom flap: draw the structure. (folds up)

Mid flap: biomolecule name and importance.

Step 1 Step 2 Step 3

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.

Front: Make a riddle for Lipids.(folds down)

Bottom flap: draw the structure. (folds up)

Mid flap: biomolecule name and importance.

Step 1 Step 2 Step 3

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.

Enzymes are proteins that regulate chemical reactions in your body.

Hair is also made up of protein.

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.

Front: Make a riddle for Proteins.(folds down)

Bottom flap: draw the structure. (folds up)

Mid flap: biomolecule name and importance.

Step 1 Step 2 Step 3

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.

Front: Make a riddle for Nucleic Acids.(folds down)

Bottom flap: draw the structure. (folds up)

Mid flap: biomolecule name and importance.

Step 1 Step 2 Step 3

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

LIPIDSCARBOHYDRATES

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