Question

lipids
lipids are a class of biomolecules which includes fats and oils, and have the function of long - term storage of energy in the body. the building block of lipids is the fatty acid, which is a chain of carbons with hydrogen attached to each side. saturated fats have two carbons attached to each carbon (except the one at the end). saturated fats are unhealthy fats like butter and crisco. unsaturated fats are missing at least one hydrogen and are kinked in shape. they are healthier than saturated fats and include oils.

1. what is the building block of lipids?

1. list two examples of lipids.

proteins
proteins are biomolecules that form muscles and act as hormones and enzymes. the protein hemoglobin transports oxygen in our bloodstream. most importantly, proteins determine how our bodies look and function. their building block is the amino acid. proteins are made of amino acids combined through a dehydration link called a peptide bond. when groups of amino acids are joined together, a protein is formed.

1. list two functions of proteins.

1. what are the building block of proteins?

Explanation:

1. The text states that the building - block of lipids is the fatty acid.
2. The text mentions fats and oils as types of lipids.
3. The text lists that proteins form muscles and act as hormones and enzymes. Transporting oxygen by hemoglobin is also a function.
4. The text clearly says the building - block of proteins is the amino acid.

Answer:

1. Fatty acid
2. Fats, oils
3. Form muscles, act as hormones and enzymes (or transport oxygen)
4. Amino acid