Question

what are some examples of signaling molecules involved in cellular communication?
chromosomes, genes, and dna.
enzymes, receptors, and transporters.
hormones, neurotransmitters, cytokines, and growth factors.
antibodies, antigens, and lymphocytes.
amino acids, fatty acids, and glucose.

Explanation:

Cellular communication involves signaling molecules. Chromosomes, genes, DNA are for genetic info. Enzymes for catalysis, receptors/transporters for transport/binding. Antibodies/antigens/lymphocytes in immune response. Amino/fatty acids/glucose for energy/structure. Hormones (e.g., insulin), neurotransmitters (e.g., dopamine), cytokines (e.g., interleukins), growth factors (e.g., epidermal growth factor) are classic signaling molecules.

Answer:

Hormones, neurotransmitters, cytokines, and growth factors.