[en] Assuming existence of 9q- and 12q bags in niclei the form factors of light nuclei at large momentum transfers and structure functions of deep inelastic scattering of leptons on nuclei are described. It is shown that the existing experimental data can be described in a unified way provided the momentum distribution of quarks in multiquark bags at k₀ has the exponential form PSIsub(q)sup(2)(k) approximately esup(-k/k₀) with the parameter k₀ approximately 50-60 MeV. Theoretical results agree well the EMC experimental data on the ratio of the iron and deuteron structure functions with the 20% admixture of 12q-bags in the Fe nucleus