Date sis TUL SHORT ONSWER QUESTIONS. wolt | What is a prokaryotic cell? Differentiaite prokaryotic cell from cele from a eukaryote cell? Such organisms whose cells lack a nuclear membrane are called prokaryotic The prokaryotic cell contain asingle molecule of DNA white in Eukaryotic cell, there are two og naore DNA molecule 910 =>who discovered cells and how?
Answers
Answer:
Prokaryotic cells and eukaryotic cells are the two types of cells that exist on Earth. There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.
WHAT ARE PROKARYOTIC AND EUKARYOTIC CELLS?
All living things can be divided into three basic domains: Bacteria, Archaea and Eukarya. The primarily single-celled organisms found in the Bacteria and Archaea domains are known as prokaryotes. These organisms are made of prokaryotic cells — the smallest, simplest and most ancient cells.
Organisms in the Eukarya domain are made of the more complex eukaryotic cells. These organisms, called eukaryotes, can be unicellular or multicellular and include animals, plants, fungi and protists. Many people are unclear on whether yeasts or fungi are prokaryotes or eukaryotes. Both are eukaryotes and share similar cell structure to all other eukaryotes.
Eukaryotes developed at least 2.7 billion years ago, following 1 to 1.5 billion years of prokaryotic evolution, according to the National Institutes of Health (NIH). Scientists hypothesize that the nucleus and other eukaryotic features may have first formed after a prokaryotic organism swallowed up another, according to the University of Texas. According to this theory, the engulfed organism would have then contributed to the functioning of its host.
WHAT DO PROKARYOTES AND EUKARYOTES HAVE IN COMMON?
Although prokaryotic and eukaryotic cells have many differences, they share some common features, including the following:
DNA: Genetic coding that determines all the characteristics of living things.
Cell (or plasma) membrane: Outer layer that separates the cell from the surrounding environment and acts as a selective barrier for incoming and outgoing materials.
Cytoplasm: Jelly-like fluid within a cell that is composed primarily of water, salts and proteins.
Ribosomes: Organelles that make proteins.
Answer:
Prokaryote, also spelled procaryote, any organism that lacks a distinct nucleus and other organelles due to the absence of internal membranes. Bacteria are among the best-known prokaryotic organisms. ... The prokaryotic cell membrane is made up of phospholipids and constitutes the cell's primary osmotic barrier.
In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus. The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure.
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.