The macromolecules are defined as large molecules like lipids, proteins, and carbohydrates.
In the given data, the red color denotes hydrogen and black denotes carbon. The molecule that needs the majority of red and black color is carbohydrates.
Carbohydrates can be explained as:
- Carbohydrates are the macromolecules, generally referred to as sugar. Carbohydrates are primary nutrients of the diet along with proteins and fats.
- Carbohydrate is a biomolecule that is made up of carbon, hydrogen, and oxygen atoms. The monomeric units of carbohydrates are monosaccharides.
Thus, the correct answer is Option A.
To know more about carbohydrates, refer to the following link:
brainly.com/question/16987478
Brain. Specifically the frontal lobe M1.
It would be B I believe that is what i put on the quiz. I hope I helped
Because it allows only certain substances to permeate. If it was totally permeable that would be good enough to having no barrier as it would let everything though. Totally impermeable means that nothing would get through.