Fibronectin binds to integrin through an RGD motif.

TLS Online TPP Program

#Id: 1450

#Unit 4. Cell Communication and Cell Signaling

Ions, low-MW precursors of cellular macromolecules, products of intermediary metabolism, & small intracellular signaling molecules can pass from cell to cell through gap junctions.

TLS Online TPP Program

#Id: 5711

#Unit 7. System Physiology – Animal

Somatotropes—human growth hormone

promotes growth of the entire body by affecting protein formation, cell multiplication, and cell differentiation.

TLS Online TPP Program

#Id: 9006

#Unit 6. System Physiology – Plant

The signals flow from the chloroplast to the nucleus is retrograde:

plastidial ferrochelatase I catalyzes the synthesis of heme, which in turn regulates the expression of nuclear encoded, chloroplast‐targeted proteins in greening leaves.

TLS Online TPP Program

#Id: 8322

#Unit 2. Cellular Organization

Steady-state phase

G-actin monomers exchange with subunits at the filament ends, but there is no net change in the total length of filaments.

TLS Online TPP Program

#Id: 6951

#Unit 8. Inheritance Biology

This suppression of recombination allows alleles adapted to a specific environment to remain together, unshuffled by recombinationsomes cannot produce viable progeny.