Articles related to "Cells Alive"

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Some living things reproduce by cloning; producing offspring that are genetically identical to the parent. Organisms that procreate sexually create genetic novelty.

The amount and location of peptidoglycan in the prokaryotic cell wall is what determines whether a bacterium is Gram-positive or Gram-negative.

This collection of articles provides basic information about prokaryotic and eukaryotic cells, their structure, function, differences and similarities.

Find out why dopamine-producing cells die in patients with PD, and how preventing this from happening is the current focus of therapy targets

All living things are composed of one or more cells. Unlike cells, viruses, viroids and prions are acellular, nonliving parasites that require a living host to reproduce.

Infectious disease can result of cellular organisms, such as bacteria (prokaryotes), from eukaryotes (cells like ours) or from nonliving infectious agents.

Animals and plants are eukaryotes, composed of cells that have a nucleus, and membrane-bound organelles. But animal cells have a few different features than plant cells.

Gram + bacteria stain purple due to the chemistry and structure of their peptidoglycan cell wall. Here's how Gram staining identifies Gram-positive organisms.

It all begins with the fusion of a haploid sperm cell provided by the father and the haploid ovum of the mother. Gametes unite when the nuclei of sperm and egg merge.

An investigation in which students conduct three mini-experiments to discover how water passes through a plant's roots, stems, and exits through a plant's leaves.

Organelles allow for many of the different required functions of the eukaryotic cell to be performed in specialized subcellular structures.

This article series provides information of how mitotic and meiotic cell division differ and how these processes are integral to the human life cycle.

Plants are eukaryotes, composed of cells that have a nucleus, and membrane-bound organelles. But plants have a few different features than animal cells. Here's a summary.

There are only two basic types of cells, primitive prokaryotes and the more complex eukaryotes. Here are the main features that distinguish these cell types.

What specifically are the similarities between prokaryotic and eukaryotic cells? Here is a side by side comparison to simplify mastery of the basics of cell structure.

Parkinson disease causes a loss of purposeful movement control and the emergence of tremors and other symptoms. What is known about this disorder and how is it treated?

We hear the word used all the time, read diet books on how to boost ours and lament its slowing as we age. But what exactly is metabolism?

Glycolysis, synthesis of acetyl-CoA, Kreb's Cycle and electron transport are the complex series of reactions that turn the food we eat into energy.

What specifically are the main differences between prokaryotic and eukaryotic cells? Here is a side by side comparison to simplify mastering the basics of cell structure.

Meiosis, a type of cell division, results in production of gametes (eggs & sperm). Genetically unique sex cells combine at fertilization to form one-of-a-kind offspring.

What are deoxyribonucleic and ribonucleic acid made of, and how are these big molecules of genetic information built? This article explains the basics.

Nucleic acids, such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the vital genetic blueprints, messengers and builders of the cellular world.

Prokaryotes are evolutionarily ancient, for billions of years the only form of life. Here's a summary of the basic "parts & pieces" of these primitive cells.

Although they appear to behave as living things, viruses, viroids and prions are nonliving particles. Read on and discover more about these 'smart' parasites.

Viruses are not living cells, but efficient parasites that commandeer living cells and turn them into virus factories. Learn how these nonliving particles act so smart.