Title

Cells secrete substances into the bloodstream that affect distant cells by active transport

Cells secrete substances into the bloodstream that affect nearby cells by diffusion

Cells secrete substances into the extracellular matrix that affect nearby cells by diffusion (correct)

Cells secrete substances into the extracellular matrix that affect distant cells by active transport

Fibroblasts

Endothelial cells (correct)

Adipocytes

Epithelial cells

Paracrine secretion affects distant cells, while endocrine secretion affects nearby cells

Paracrine secretion involves diffusion, while endocrine secretion involves active transport

Paracrine secretion involves active transport, while endocrine secretion involves diffusion

Paracrine secretion affects nearby cells, while endocrine secretion affects distant cells (correct)