The implications of the empirical signatures for the positivity of the strangeness magnetic moment µ s and the negativity of the the strangeness contribution to the proton spin ∆ s on the possible uudss configurations of five quarks in the proton are analyzed. The empirical signs for the values for these two observables can only be obtained in configurations where the uuds subsystem is orbitally excited and thes antiquark is in the ground state. The configurations in which thē s is orbitally excited, which include the conventional K + Λ 0 configuration, with exception of that in which the the uuds component has spin 2, yield negative values for µ s . Here the strangeness spin ∆ s , the strangeness magnetic moment µ s and axial coupling constant G s A are calculated for all possible configurations of the uudss component of the proton. In the configuration with [4] F S [22] F [22] S flavor-spin symmetry, which is likely to have the lowest energy, µ s is positive and

Sea quark contents of the octet baryons are investigated by employing an extended chiral constituent quark approach, which embodies higher Fock five-quark components in the baryons wavefunctions. The well-known flavor asymmetry of the nucleon sead −ū, is used as input to predict the probabilities ofū,d ands in the nucleon, Λ, Σ and Ξ baryons, due to the intrinsic five-quark components in the baryons wave functions.