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Basile [38]
3 years ago
8

Describe the following types of cell signaling:

Biology
1 answer:
ANTONII [103]3 years ago
3 0

Answer:

Autocrine =  Autocrine signaling is a form of cell signaling in which a cell secretes a hormone or chemical messenger (called the autocrine agent) that binds to autocrine receptors on that same cell, leading to changes in the cell.This can be contrasted with paracrine signaling, intracrine signaling, or classical endocrine signaling.

Juxtacrine =  Juxtacrine signalling (or contact-dependent signalling) is a type of cell–cell or cell–extracellular matrix signalling in multicellular organisms that requires close contact.

Endocrine = Endocrine signaling occurs when endocrine cells release hormones that act on distant target cells in the body. Endocrine signaling can be distinguished from two other types of signaling: neural signaling and paracrine signaling. ... Neurons are connected to their target cells via synapses.

Paracrine = Paracrine signaling is a form of cell signaling or cell-to-cell communication in which a cell produces a signal to induce changes in nearby cells, altering the behaviour of those cells.

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that is why anyone should always bring oxygen tanks when climbing a high mountain
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The main difference between a prokaryotes and <br> eukaryotes
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Answer:

eukaryote cells have a membrane -bound nucleus and prokaryote cells do not. the nucleus is where eukaryote ls store their genetic information and prokaryotes have no membrane bound organelles.

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HELP i need to create a story about cells and their functions the organelles are Cell membrane
Katen [24]

Answer:

More than 8.7 million species are living on the planet. Every single species is composed of a cell and it includes both single-celled and multicellular organisms.

The cells provide shape, structure and carries out different types of functions to keep the entire system active. The cell contains different functional structures which are collectively called Organelles, and they are involved in various cellular functions.

Also Read: Difference between organ and organelle

Let us learn more in detail about the different types and functions of Cell Organelles.

Table of Contents

What are Cell Organelles?

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Plasma Membrane

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Endoplasmic Reticulum

Mitochondria

Plastids

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Nicotine from cigarette smoke acts as a ligand and associates with the acetylcholine receptor on specific cells in the nervous s
Vitek1552 [10]

Answer:

The correct order of events is:

C) Nicotine binds to the transmembrane protein that normally binds the neurotransmitter acetylcholine.

A) The acetylcholine receptor is an ion channel, and when a ligand binds, the ion channel opens.

B) An influx of ions carries the signal to the reward areas of the brain.

D) The signal causes release of dopamine in the brain, which causes good feelings.

E) Nicotine is quickly eliminated from the body (causing cravings for more cigarettes to produce good feelings).

Explanation:

Nicotine acts on acetyl cholinergic receptors that are located in membranes of the midbrain neurons. Nicotine can activate those receptors or block them more efficiently than acetylcholine.   Stimulation of nicotinic receptors leads to an increase in ions flow that reaches the brain and causes dopamine release in the nucleus accumbens through axonal prolongations of the dopaminergic pathway. This response is responsible for the smoker´s recompense sensation.

The dopaminergic pathway is the most important way in the process of nicotine dependence and addiction to the drug.  

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