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The differences between animal and plant cell
The differences between animal and plant cell
Functions of cells, essay in biology
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Cells
Cells are the basic unit of all life. Even though they are the smallest unit of life they are highly complex. Each cell has enough parts to it to practically survive on its own. There are two types of cells; the plant cell and the animal cell. These two cells do not vary intensely, but there are some major factors that separate them completely.
Animal cells are highly organized. The many parts that make up the cell work in synch with each other. These parts are called organelles. The most important organelle in the cell is the nucleus. The nucleus holds all of the blueprint information for the cell. The DNA of a cell is found in the nucleus along with RNA. The nucleus is surrounded by two membranes due to the need to be highly selective with materials that enter the cell's nucleus. The cell itself is surrounded by a membrane. In between the membrane of the nucleus and the cell membrane is cytoplasm. It is in the cytoplasm where all of the other organelles are stored. There are six main organelles in the cytoplasm. First, the mitochondria, which provides energy to the cell through ATP and respiration.
Then there is the endoplasmic reticulum which separates parts of the cell. Then there is the Golgi apparatus which is used for sorting, storing, and secretion for the cell. Next are lysosomes, which hydrolyze macromolecules. Then there are centrioles that play a major role in cell division. And lastly there are vacuoles which have a variety of storage functions.
The plant cell is similar in most ways. The only really big differences between the plant cell and the animal cell are as follows. The first is the
Cytoplasm is a jelly-like fluid inside the cell in which the organelles are suspended. All life activities except reproduction happen here. In a basketball stadium the fans are like cytoplasm in a plant cell. The fans are like cytoplasm because they are all over the stadium like cytoplasm is all over the plant cell. This is how cytoplasm is like the fans because they both are all around the
In The Immortal Life of Henrietta Lacks, multiple cell research studies involving Henrietta’s cells are described. Author Rebecca Skloot writes about Henrietta Lacks’ journey through her cervical cancer and how her cells changed the lives of millions long after her death. Skloot relates the history of cell research, including those studies which were successful and those that were not so successful. It is necessary for the author to include the achievements and disturbing practices of scientists throughout this history to inform readers and focus on the way Henrietta’s cells were used. Truth always matters to readers and Henrietta’s family deserves the truth.
parts, and each part has its own job. The nucleus of a cell is very similar
The inner membrane and outer membrane effectively divide the mitochondria into two internal compartments. The space located between the outer and inner mitochondrial membrane is called the intermembrane space. The space enclosed by th...
This organelle is the site of photosynthesis in plants and other organisms. In the structure, the chloroplasts has a double membrane, the outer membrane has a continuous boundary. This organelle can be found in a vast group of organelles called the plastid, chloroplasts are usually found in many plant cells but never in animal cells. Chloroplasts organelles are large; they are 4-10um long and 2-3um wide. They are very important to plants because chloroplasts are what plants use to create food from sunlight. Chloroplasts are not found in humans.
Plant and animal cells are similar in cell biology in that that they both are Eukaryotic cells. Eukaryotic cells contain plasma membranes, DNA, and ribosomes (What Is a Eukaryotic Cell). However, the difference between animals and plants is that animals lack organelles that plants contain. Plants have vacuoles which store material such as water and waste (Vacuole (plants)). Chloroplasts are another key difference between the two. Chloroplasts are organelles that are referred to as plastids. Plastids contribute to storing important
Eukaryotic cells have their chromosomes contained in a nucleus. Unicellular orgasisms such as amoebas and yeast, or multi-cellular organisms such as plants and animals consist of eukaryotic cells. Human being consist of approximately 1 billion cells per gram tissue. DNA located in 23 pairs of chromosomes is contained in each cell nucleus. Schleiden in 1838 and Schwann in 1839 made very important discoveries that we consist of cells, and Remark discovered that cells prolifarate through division in 1850. Three decades ago, the molecular mechanisms that regulate the cell cycle and thus cell division was able to be identified. It has been known that these vital mechanisms are conserved through evolution and function in the same way in eukaryotic organisms.
The nucleus of a cell keeps the cell going as a result of its the mainframe of a cell therefore it controls what happens inside a cell,what the cell will do and the way the cell is going to be used. Found inside of the nucleoplasm, the nucleolus is a consolidated district of chromatin where ribosome manufacturing happens.
Cells are able to grow and reproduce. Cells reproduce by splitting and passing on their genes (hereditary information) to Daughter cells. The nucleus always divides before the rest of the cell divides. Therefore each daughter cell contains their own nucleus. The nucleus controls the cells activities through the genetic material DNA. The cells in a body are all the same except the gametes they were all made from one cell, the Zygote. This is the cell that was formed when two gametes from your parents fused.
The strong cells wall prevents bursting. The cell is turgid. If plant cells lose water the cells become limp and flaccid. Water is essential for support in plants.
Bacteria exist everywhere in the environment and have continuous access to the body through the mouth, nose and pores of skin. Further more, many cells age and die daily and their remains must be removed, this is where the white blood cell plays its role.
The Animal Cell is a little bit different than the Plant Cell for only a couple of reasons. One is how the Plant Cell has a cell wall and the Animal Cell doesn’t. The cell wall protects and gives structure to the cell. Then there is the Nucleus, which serves as a control center for the cell. Inside the Nucleus there are one or more Nucleoli. They are dense, granular bodies that disappear at the beginning of cell division and reappear at the end. Then you have the Cytoplasm. This is the watery material lying within the cell between the cell membrane and the nucleus. The Cytoplasm also contains organelles, which have specific functions in the cell metabolism. Then there are the Golgi Bodies, which serve as processing, packaging, and storage for the cell. These organelles package and ship things out. Another parts of the cell, a very important one in fact, are the Lysosomes. These organelles are used to break things down and contain enzymes.
Cells are living things that requires substances to be imported into the cell for growth and repair just as a human, or animal, needs to eat for growth and repair. Unlike the human or animal that has arms, jaws, or external tools to collect and consume food, the basic cell does not have any external appendages to readily obtain the substances it needs. This does not leave the cell without any way to obtain the required substances, obviously otherwise they would all be very short lived, and the ways they obtain substances differ in the required energy and the substance being obtained. Regardless of the way or type of substance, everything need to pass the cell membrane to enter or leave the cell.
Nucleus: It is a double-membraned organelle present in Eukaryotic cells. The nucleus makes most of the cells DNA. It is made up of seven parts, they are the outer membrane, the inner membrane, the nucleoplasm, the nucleolus, the chromatin, the nuclear envelope and the nuclear pore. Some of the main functions of the nucleus are
In America most people have no idea what you might be talking about if a person talks about taking a gap year. Gap year is the custom of taking a year off before heading to college. In the UK and elsewhere there is an increasing trend for young people whom, after leaving high school, delay their college education and instead choose to explore the world. They seek adventure, a chance to live independently in a world far different than they have ever known. They are drawn to this path fora number of reasons, but most feel that there is something lacking in their lives. They choose to take an international gap year, spending a year exploring the world and learning more about themselves. The rise of the gap year phenomenon, particularly the increasingly popular international travel gap year, has been of growing interest to colleges and researchers and with good reason: these gap years occurs at crucial points in a young people’s lives. But despite its cultural prominence, the international volunteering gap year has been the subject of little research. Gap years are a good chance for you...