Question

which protein type helps cells stick together or attach to the extracellular matrix? *
transport protein
adhesion protein
recognition protein
receptor protein
which protein allows your immune system to distinguish \self\ cells from \invader\ cells? *

Explanation:

1. Adhesion proteins are responsible for cell - cell and cell - extracellular matrix adhesion.
2. Recognition proteins, such as major histocompatibility complex (MHC) proteins, help the immune system distinguish self from non - self.

Answer:

1. B. Adhesion protein
2. Recognition protein