Peroxisome is one of the membrane organelles of the eukaryotic cell. It is a small (about 0.2 – 1.5 micron) elliptic body bounded by a membrane. The core of the peroxisome is often made of the crystal-like structures. They located in the center of the organelle and are covered by granular matrix. Peroxisomes exist both in plant and animal cells; their amount varies between 70-100 organelles per cell. In humans and mammals the highest concentration of peroxisomes is found in liver and kidneys. Detoxification is one of the main functions of this organelle. It contains the enzyme called catalase that ...
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There are six stages in the life cycle of a mitotic cell which include interphase and cytokinesis. The mitosis stage is divided into four other sub stages. Mr. Interphase performs various functions such as the cellular respiration, photosynthesis and protein synthesis in preparation to undergo the Mitosis stage. Mr. Mitosis has four witnesses, Prophase who helped nuclear membrane disappear into the genetic material. The other witness, Metaphase, makes the alignment of the chromosomes. Anaphase helps in centralizing the chromosomes and changing them from being x-shaped (Rieder, 17). The last witness created the new component of nuclei with their new ...
Barbara McClintock was a one time student at Cornell University under the auspices of one C. B. Hutchison, who was lecturing in genetics during the fall in 1921. Genetics had not become a widely accepted course during the time, and students used to study it as a preamble to becoming plant breeders. Having been born in Hartford Connecticut in 1902, she earned her first degree in 1923, her Masters in 1925 and a Doctorate in Philosophy in 1927. Her steady rise as a geneticist was inspired by C. B. Hutchison. She studied the genetic characteristics of maize concentrating on ...
Cells are the building blocks of many structures in biology. In their most basic classification, there are prokaryote and eukaryote cells. These two cell types differ in their structure. Prokaryotes typically consist of ribosomes, a cell membrane, and nucleic material. On the other hand, eukaryotes contain membrane-bound organelles, such as Golgi apparatus, lysosomes, a nucleus, and endoplasmic reticulum. Both types of cells also have nucleic acid as a form of genetic material. The prokaryote has circular DNA which is not associated with histone proteins; whereas the eukaryote has linear DNA with histone proteins present to help organize and protect ...
DISCUSSION BOARD
DISCUSSION BOARD
Part 1:
There are several analogies between the biological cellular structures evolution and the individual corporation development. A prokaryotic cell is a cell with no internal organelles; all the functions of the cell are distributed randomly inside, similar to a small company where all the members of the enterprise execute the functions of production, administration, and management. There are no specialized duties between the members of the organization similar to the lack of specialization in all the volume of the prokaryotic cell. In a eukaryotic cell (Diffen, 2014). There is a presence of internal organelles that execute specialized functions ...
Introduction
Cellular respiration and photosynthesis are vital reactions in living organisms since without the two; there would be no life on earth. Cellular respiration involves a set of metabolic reactions that take place in cells of living organisms thereby converting nutrients like sugar into adenosine triphosphate (ATP) (Osterhoudt & Barhydt, 2010). On the other hand, photosynthesis involves the conversion of carbon dioxide into organic compounds by the photoautotroph in the presence of sunlight. Most animals attain their energy requirements through cellular respiration while on the other hand; photosynthesis is performed by most plants that can make their food. These two reactions ...
{Author Name [first-name middle-name-initials last-name]} {Institution Affiliation [name of Author’s institute]} A cell is a form of the miniature factory that encloses a distinct chemical system that is involved in structural maintenance, homeostasis, energy generation and reproduction. Every organism is made of these structural living units. The cell divides and produces more cells and assists in the growth of the organism. There are two types of cells, eukaryotic and prokaryotic. Eukaryotic cells are characterised by a membrane-bound nucleus enclosing the genetic material. The Eukaryotic cells can be divided into three main parts, plasma membrane, cytoplasm, and nucleus (Cooper & ...