Cell Signaling: Paracrine, Autocrine, and Hormonal Transmission, Quizzes of Biology

Definitions and explanations of various types of cell signaling, including paracrine, autocrine, and hormonal signaling. It covers the concepts of local regulators, reception, transduction, and response, as well as the three main types of membrane receptors. Understanding these concepts is essential for students of biology and related fields.

Typology: Quizzes

Pre 2010

Uploaded on 05/05/2010

lesleeissofly
lesleeissofly 🇺🇸

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TERM 1
paracrine
DEFINITION 1
Paracrine signaling is a form of cell signaling in which the
target cell is near ("para" = near) the signal-releasing cell.
TERM 2
autocrine
DEFINITION 2
Autocrine signaling is a form of signaling in which a cell
secretes a hormone or chemical messenger (called the
autocrine agent) that binds to autocrine receptors on the
same cell, leading to changes in the cells.
TERM 3
hormonal signaling
DEFINITION 3
signals secreted into blood and transmitted throughout body
TERM 4
Local regulators
DEFINITION 4
>growth factors stimulate neighboring cells to continue to
grow >nerve cells release neurotransmitters
TERM 5
reception
DEFINITION 5
Signaling molecule(s) outside cell interact with receptor
proteins in the cell membrane
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TERM 1

paracrine

DEFINITION 1 Paracrine signaling is a form of cell signaling in which the target cell is near ("para" = near) the signal-releasing cell. TERM 2

autocrine

DEFINITION 2 Autocrine signaling is a form of signaling in which a cell secretes a hormone or chemical messenger (called the autocrine agent) that binds to autocrine receptors on the same cell, leading to changes in the cells. TERM 3

hormonal signaling

DEFINITION 3 signals secreted into blood and transmitted throughout body TERM 4

Local regulators

DEFINITION 4

growth factors stimulate neighboring cells to continue to grow >nerve cells release neurotransmitters TERM 5

reception

DEFINITION 5 Signaling molecule(s) outside cell interact with receptor proteins in the cell membrane

TERM 6

three main types of membrane receptors + 1

DEFINITION 6 G-protein-linked receptor Tyrosine-kinase receptor Ion- channel receptors - also intracellular receptors TERM 7

Reception

DEFINITION 7 Signaling molecule(s) outside cell interact with receptor proteins in the cell membrane. TERM 8

Transduction

DEFINITION 8 Signals are transduced to the inside of the cell via relay molecules in a signal transduction pathway. TERM 9

response

DEFINITION 9 Ultimately, the result of the signal transduction pathway is to elicit the specific activation of a cellular responses.