CIENCIASMEDICASNEWS: Cell Day 2014 - Science Education - National Institute of General Medical Sciences

sábado, 2 de noviembre de 2013

Cell Day 2014 - Science Education - National Institute of General Medical Sciences

Due to the recent federal government shutdown, the NIGMS Cell Day Web chat has been postponed. It will now be held on Friday, February 28, 2014 from 10:00 a.m. to 3:00 p.m. ET.

As part of its commitment to encouraging future generations of scientists, NIGMS will host an interactive Web chatroom about the cell and careers in research for middle and high school students. Register now. For more information about Cell Day, please see our FAQs page or send an e-mail to nigmscellday@nigms.nih.gov
To learn more about different parts of the cell, click on the labels in the image below.
Nucleus
The easiest organelle to spot in most cells, the nucleus is the storehouse for most of your DNA. Mitochondria
Mitochondria are often called the cell's power plants. They manufacture the main energy source in your body—a small molecule called ATP. Unlike other organelles, mitochondria have their own DNA. Golgi
The Golgi puts the finishing touches—sugars or other molecules—onto newly made proteins and lipids. Some of these additions act as shipping labels that send the newborn molecules to their proper destinations, whether it is another organelle, a cell membrane or outside the cell. Lysosomes
Powerful enzymes inside lysosomes chop up cellular materials into their component parts, which the cell reuses as nutrients or building blocks. Lysosomes haul away unusable waste and dump it outside the cell.Smooth ER
The ER (endoplasmic reticulum) is a collection of enormous, interconnected sacs located close to the cell's nucleus. It comes in two types: smooth and rough.

The smooth ER manufactures lipids and contains enzymes that break down harmful substances. Most cell types have very little smooth ER. Rough ER
The ER (endoplasmic reticulum) is a collection of enormous, interconnected sacs located close to the cell's nucleus. It comes in two types: smooth and rough.

Under a high-powered microscope, the rough ER appears covered with black dots. Those dots are ribosomes, sophisticated molecular machines that build proteins.