Illustration of a cross-section of a lysosome that contains hydrolytic enzymes (light blue). Lysosomes are membrane-bound organelles made up of a phospholipid bilayer (dark blue) and many proteins. Examples of lysosomal proteins are ion channel transporters (lilac), V-ATPase (green), amino acid transporters (light yellow), glucose transporters (white), cholesterol transporters (dark purple), nucleotide transporters (light orange), SNARES (pink), LAMPs (light green), and motor adaptors (purple) for transporting the lysosome along microtubules (pink and purple) with the help of dynein (orange).