One month ago, a teenage girl stopped eating animal-derived foods and now only consumes vegetables and fruits. She is now experiencing either a cold and/or an infection. This is probably due to inadequate protein intake for:
proper hormone regulation.
synthesizing antibodies.
maintaining tissue fluid balance.
maintaining blood pH balance.

Synthesizing antibodies

Explanation:

Antibodies are have proteins that are created by the insusceptible framework because of remote atoms that enter the body. These outside particles are called antigens, and their atomic acknowledgment by the safe framework brings about particular creation of antibodies that can tie the particular antigen. Antibodies are made by B-lymphocytes and circle all through the blood and lymph where they tie to their particular antigen, empowering it to be cleared from dissemination.  Antibodies are explicit proteins that perceive almost any substance structure. During in vivo vaccination B cells are enacted by antigen. Antigen‐specific cells multiply and some separate into antibody‐secreting plasma cells. Quickly, B cells with explicitness for a realized antigen were combined with myeloma to make them everlasting. Hybridomas develop in culture uncertainly and emit monoclonal antibodies (mAbs) of an ideal particularity. Hybridoma innovation and counter acting agent building have contributed in Biomedicine to the analysis of malignancies, tissue composing, distinguishing proof of individual cell types, identification of cytokines, development variables and hormones.

Ithink the answer is nuclear membrane