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Cell nucleus - Wikipedia


In cell biology, the nucleus is a membrane-enclosed organelle found in eukaryotic cells. .... The nuclear lamina is composed mostly of lamin proteins. Like all ...

What is a nucleus made of? | Reference.com


The nucleus of a plant or animal cell is made of chromatin and nucleoli. Chromatin is made of DNA and protein, and nucleoli are small bodies that hold protein ...

Biology4Kids.com: Cell Structure: Cell Nucleus


If it happens in a cell, chances are the nucleus knows about it. The nucleus is not ... in the nucleus. Chromatin is made of DNA, RNA, and nuclear proteins.

Cell Nucleus and Nuclear Envelope - HyperPhysics


The nucleus of a eukaryotic cell contains the DNA, the genetic material of the cell. ... The nucleolus is the central portion of the cell nucleus and is composed of ...

What are the fundamental particles that make up a nucleus?


Atoms, which are considered to be the building blocks of "ordinary" matter, are made up of electrons, a lot of "empty space", and nuclei. We still believe electrons  ...

The Nucleus and Ribosomes - Boundless


Chromatin describes the material that makes up chromosomes, which are structures within the nucleus that are made up of DNA, the hereditary material.

What's in the heart of a comet? :: NASA Space Place


A comet's nucleus is like a dirty snowball made of ice. As the comet gets closer to the Sun, some of the ice starts to melt and boil off, along with particles of dust.

BBC - GCSE Bitesize: Structure of the atom


An atom is made from a nucleus surrounded by electrons. The nucleus contains protons and neutrons. Isotopes are atoms that have the same number of protons  ...

Nuclear Physics 101: What Holds the Nucleus Together ...


Jun 27, 2013 ... Stuff at the atomic level gets pretty weird. particle collision.png. What Are Protons and Neutrons Made Of? Every atom's nucleus is made up of a ...

What is a nucleus - UCSB Science Line - University of California ...


You and I are made out of so many cells that you couldn't count them. Cells are so small that you need a microscope to see them. The nucleus is usually the big ...

What Is the Nucleus Made Of?
The nucleus can be made of a number of different things depending on its purpose. The atomic structure of elements contain nuclei, as do each cell within living things.... More »
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The Nucleus


The atomic nucleus consists of nucleons—protons and neutrons. Protons and neutrons are made of quarks and held together by the strong force generated by  ...

Why is the nucleus of an atom made of protons and neutrons? - Quora


protons and electrons are two entirely different types of particles. Protons, and neutrons, are hadrons. They consist of 3 quarks, and are held together by the ...

Questions and Answers - What is an atom? What are atoms made of?


The protons and neutrons cluster together in the central part of the atom, called the nucleus, and the electrons 'orbit' the nucleus. A particular atom will have the ...