Question

Lipids are important to living things for all of the following reasons, EXCEPT that they are A) needed to form cell membranes. B) chained together to form proteins. C) used for insulation in Arctic animals. D) used for long-term energy storage in hibernating animals.

Answer 1

I am thinking it is B) chained together to form proteins. I took a biology class last year and I don't ever remember being told that lipids bond together to form a protein. I know that peptide bonds link together to make a protein. 

Answer 2

B) chained together to form proteins.

Step-by-step explanation:

It is not lipids which are chained together to form proteins, it is amino acids which are chained together to form proteins. Proteins are the polymers of small monomeric units named as amino acids. Rest of the options are true of lipids i.e. option A which says that they are needed to form cell membranes because cell membranes are made up of phospholipids which are the derivatives of lipids. Option C is also correct for lipids because lipids which are present in the adipose tissue of arctic animals provide them insulation from extremely harsh cold weather. Option D is also true for lipids because lipids are stored in the fat stores by the hibernating animals as a source of energy.