9/14/26, 11:22 AM NU 545-Unit 1 Flashcards | Quizlet
Lipids and Proteins the major chemical components of the cell membrane
Platelet-derived growth factor Stimulates the production of connective tissue cells and neuroglial cells
Cell Communication maintains homeostasis and regulates growth, division, developments and
organization into tissues. Also coordinates functions. It occurs in 3 ways
Chemical Signaling Communication at a distance
Paracrine signaling secrete mediators that are absorbed or destroyed
Autocrine signaling produce signals that they themselves respond to
Hormonal signaling endocrine cells secrete hormones to produce response in another set of cells
Neurohormonal signaling hormones released by neurosecretory neurons
Active Transport Movement of substance across a membrane by carrier protein that requires
expenditure of energy for activation. Only occurs across living membranes.
Receptors must recognize and bind with the substance to be transported
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Lipids and Proteins the major chemical components of the cell membrane
Platelet-derived growth factor Stimulates the production of connective tissue cells and neuroglial cells
Cell Communication maintains homeostasis and regulates growth, division, developments and
organization into tissues. Also coordinates functions. It occurs in 3 ways
Chemical Signaling Communication at a distance
Paracrine signaling secrete mediators that are absorbed or destroyed
Autocrine signaling produce signals that they themselves respond to
Hormonal signaling endocrine cells secrete hormones to produce response in another set of cells
Neurohormonal signaling hormones released by neurosecretory neurons
Active Transport Movement of substance across a membrane by carrier protein that requires
expenditure of energy for activation. Only occurs across living membranes.
Receptors must recognize and bind with the substance to be transported
https://quizlet.com/1193223245/nu-545-unit-1-flash-cards/ 4/6
