Eukaryotic Cell

You can identify a eukaryotic cell by its encased nucleus, containing the majority of its DNA and organelles surrounded by a membrane. Plant and Animal cells have double membranes and a housed nucleus therefore they are eukaryotic cells; organisms which do not contain a double membrane and an encased nucleus are known as prokaryotes, e.g. bacteria. The eukaryotic cell is made up of many membrane bound organelles which all have a specific function.

“Eukaryotic cells are complex and include all animal and plant cells. Prokaryotic cells are smaller and simpler, e.g. Bacteria” - (AQA 2008)

Policy options such as boycotting plastic water bottles, recycling all cans, paper, metal, plastic. More options such as, using reusable shopping bags, having rechargeable batteries, purchasing items made from recycled products, and buy items packaged in recycled cartons or with less packaging are all great ideas as well. A study from the California Department of Resources Recycling and Recovery shows, “California generated 74.9 million tons of waste in 2014. This corresponds to an estimated 37.1 million tons of material that was source-reduced, recycled, or composted in California in 2014.”. This is evidence that California and the laws that correspond with recycling are functioning at a high level.

P1 – Describe the microstructure of a typical animal cell and the functions of the main cell components. A typical animal cell is seen as a tiny, three dimensional sac which is in fact made up of many components, each as important as the other. The microstructure of an animal cell was in fact uncovered mainly through the use of both cell fractionation and electron microscopy. Each main component has its own, individual function which helps a cell to function and maintains the cell membrane. The components that I will be describing include the cell membrane, nucleus, cytoplasm, mitochondria, lysosomes, Golgi bodies, centrioles, endoplasmic reticulum (both smooth and rough) and ribosomes.

Eukaryotic organisms have cells that contain a nucleus. Animals, plants, fungi, and protoctista all have eukaryotic cells. The eukaryotic cell has a plasma membrane as its external boundary like all other cells, but it also has a variety of membranes that divide the internal space into discrete compartments, which give them its unique feature, that enable the cell to carry out various chemical reactions or processes in separate parts of the cell, which all form part of the same system. The compartments in the cytoplasm are known as organelles.

Archaea were originally classified as bacteria and were named archaebacteria since most of the archaea are not isolated in the lab, and also archaea and bacteria are roughly the same size and shape. With the great progress of science, scientists can through analysis of nucleic acids in order to determine the cell is archaea or not. Different from prokaryote, eukaryotes are any kind of cell that has cell nuclei and other organelles in the membrane. There are many different types of eukaryotic cells, animals, plants and fungi. According to a biological article in Science magazine, human beings are not really individuals, they are communities of organisms. ( McFall-Ngai, Margaret .J,1991 )[2] All animals consist of millions of eukaryotic cells. There are many different parts of the cell such as nucleus, ribosomes, endoplasmic reticulum, vesicles, Golgi apparatus, mitochondria, cytosol, cytoskeleton, and cell membrane. It contains many different types of special organelles that can perform all functions. Looking more closely at an animal cell and a plant cell, the animal cell does not have cell walls and chloroplasts and has smaller

The United States has tried to solve the garbage problems for a long time. Ted Steinberg says “at first [the garbage wars] may have seemed like a simple problem, nothing that could not be solved by a fleet of tractor-trailers carrying garbage to open spaces further south and west” when New York City has faced the lack of the room for trash in the 1990s in the chapter 14 of his book Down to Earth (225). Unfortunately, the garbage has kept causing problems since around the 1940s, the postwar period. It is uneasy to solve this serious problem because several factors, such as consumerism and some relationships on the Earth, are related to each other and make the issue complicated.

The term ‘eukaryote’ encompasses most of the visible species on the planet. A eukaryotic cell is one who's genetic material and organelles are bound by membranes, as opposed to a prokaryote who’s nucleoid and organelles are not membrane bound and sit within the cell membrane in the protoplasm - this grouping is considered the most fundamental classifications of organisms.

Protista are a eukaryotic organism, which means that it has a nucleus. Protists are so unique because they have enough of 100,000 and are so diverse in their structure and behavior, that originally some scientist actually considered some of them were plants, animals, fungi, and some actually a combination. But scientist later on described protista to serve as those organisms that are eukaryotes, not plants, animals, or fungi. Despite the fact that most are unicellular, a bit of them are multicellular.

The difference between prokaryote and eukaryote is shown in the table below: Prokaryote cell Eukaryote cell Prokaryote are always unicellular (single cell) organisms Eukaryote are usually multicellular (contains multiple cell) Prokaryotic cell has no cytoskeleton Eukaryotic cell always have cytoskeleton Prokaryote cell are without nucleus Eukaryote contains nucleus Prokaryote are smaller in size Eukaryote are larger in size Prokaryote cell are found in Bacteria and Archaea Eukaryote are found in plants and animals Endoplasmic reticulum and mitochondria are not present in prokaryote cell Endoplasmic reticulum and mitochondria are present in eukaryote cell Golgi apparatus and lysosome are not present Golgi apparatus and lysosome are present Reproduction

There are two basic types of cells, eukaryotic cells, and prokaryotic cells. Within both cell types, several differences and similarities exist. The main difference between the cell types is that eukaryotic cells have a nucleus.

Eukaryotic cells contain organelles, which are structures that are enclosed within their own membrane. The nucleus, golgi apparatus, endoplasmic reticulum, mitochondrion, lysosome, peroxisome, chloroplast, and central vacuole are all organelles in eukaryotes. Prokaryotes lack organelles, but like eukaryotes, contain DNA and non-membrane bound structures, such as ribosomes. The nucleus is where most of the cell’s genetic information is, the rest of the genes are found in the mitochondria and chloroplasts in a cell. The nucleus can be viewed using a light microscope, since the nucleus is 5 micrometers in diameter. The nuclear envelope surrounds and encloses the nucleus. The nuclear envelope consists of two lipid bilayer membranes with proteins..

air and land pollution. By recycling, we can lessen the waste materials that are placed into

Have you ever thought where your garbage goes ? The places that contain garbage and huge recycling machines which burn the garbage to benefit out from it.

This will help to deduce landfills, water pollution, air pollution, global warming and climate change. Our Earth will be less polluted. Also the gas that is released when the garbage gets burned down will be minimized. Gases like GHGs, methane and carbon dioxide won 't be released as much as they used to. In fact, there are over 10,000 landfill sites on Canada. Canada losses more than $1.5 million to dispose these garbage every year! So,