The analogous structure of the upper extremity to the femur is the .

The correct answer will be-Humerus

Explanation:

The humerus is one of the longest bone in the body in the upper arm sue to which it is analogous to the femur.  The humerus is located between the shoulder and the elbow joint which connects to the ulna at the elbow joint.

It is the bone to which many muscles get associated like pectoralis major or deltoid which helps in the supporting and performing the function of the arm like physical exercise and lifting.

Thus, the humerus is the correct answer.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

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