All living things are made up of four classes of biological macromolecules: carbohydrates, lipids, proteins, and nucleic acids.
macromolecules are large molecules composed of thousands of covalently connected atoms, also called polymers. a polymer is a long molecule consisting of many similar building blocks; the small building-block molecules are called monomers.

all cells have thousands of different macromolecules, that vary among cells of an organism, vary more within a species, and vary even more between species. a huge variety of polymers can be built from a small set of monomers.

what statements are true about the biological macromolecules.

all biomolecules could be called carbon-based molecules.
the monomers of dna are nucleotides.
ready cellular energy comes in the form of lipids.
carbohydrates contain nitrogen and therefore differ from the other macromolecules
cell membranes are made, in part, from phospholipids.
the monomers of of starch are monosaccharides.

All biomolecules could be called carbon-based molecules. Carbons are CHO Lipids are CHO Proteins are CHON and Nucleic acids are CHONP. All of them contain carbon.

Cell membranes are made in part from phospholipids think about the phospolipid bilayer consisting of hydrophobic tails and hydrophilic heads. This is what regulates what goes in and out of the cell.

The monomers of starch are monosaccharides. Starch is a chain of glucose. Glucose is a carbohydrate specifically a monosaccharide as it is a simple single sugar.

If you have questions about why the others are wrong feel free to ask.

It's the top 2 and the bottom 2

Explanation:

If this is the one on usa test prep than this is what I got

h

explanation:

hi my name is ashlynn and im 15

these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.