Gap junctions in animal cells permit: Adjacent cells to adhere strongly to each other Adjacent cells to communicate. Adjacent cells to form a water-tight (occlusive) barrier between their membranes. Second messengers produced in one cell to rapidly diffuse into and stimulate events in surrounding cells. The rapid exchange of proteins such as histones between adjacent cells

Gap junctions in animal cells permit: Adjacent cells to adhere strongly to each other Adjacent cells to communicate. Adjacent cells to form a water-tight (occlusive) barrier between their membranes. Second messengers produced in one cell to rapidly diffuse into and stimulate events in surrounding cells. The rapid exchange of proteins such as histones between adjacent cells

Essentials Of Human Development

1st Edition

ISBN:9781285647357

Author:Kail

Publisher:Kail

Chapter3: Tools For Exploring The World: Physical, Perceptual, And Motor Development

Section3.2: Physical Development

Problem 4TY

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Which of these is NOT a response that occurs when an intercellular chemical signal binds to a membrane-bound receptor? 1. Enzymes at the inner surface of the cell are directly activated. 2. Ion channels open or close. 3. Enzymes add phosphate groups to certain proteins in the cell. 4. The chemical signal and receptor bind to DNA in the nucleus. 5. Activated G proteins activate enzymes that produce intracellular messengers.
We study neurons as an example of cell signaling because neurons do not typically have genetic responses due to cell signaling. they give very obvious responses without need of molecular mechanisms. they are quite complex and give us the full range of cell responses. no other cell gives very obvious responses.
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What type of protein opens when the membrane depolarizes, such as when an action potential moves along the membrane? ligand-gated channels voltage-gated channels
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