Cell nucleus

Animal Cell Mitosis Mitosis is defined as the division of the nucleus. In animal cells, consists of 5 major phases – prophase, prometaphase, metaphase, anaphase and telophase. Cytokinesis occurs immediately following telophase, the last phase of mitosis and is the division of the cytoplasm. Mitosis and cytokinesis are phases when the cell is actively dividing and these stages last for a very short time compared to interphase. For most of a cell’s life, it is in interphase, which is a phase…

make up the cell cycle? Explain what happens during each phase. (4 marks) The cell cycle consists of many stages, which are separated into two phases: interphase and mitosis. During interphase, the cell grows larger and makes a copy of its own DNA. Interphase occurs for about 90% of the cell cycle and consists of the following stages: G1 phase, during which the cell grows larger and produces more of its organelles, proteins, and ribosomes. This phase ensures the division of the cell will…

cytokinesis . I modeled the steps by cutting the styrofoam balls in half, painted them and I put the clay models of organelles inside the styrofoam cell i made. I made skin cells as the type of cells i am using for my model, by making the color of the cells the color of skin.. Mitosis is an important process because it reproduces cells, and increases cell growth. It grows the tissue of the organism stronger and larger, and thus making the organism grow bigger and better. All…

Mitochondria are filamentous organelles of all aerobic cells of higher animals and plants and also certain microorganism like protozoa. Studies show that that mitochondria are the direct descendants of a bacterial endosymbiont that became established at an early stage in a nucleus-containing host cell (Gray et al., 1999). Mitochondria are surrounded by a double-membrane system, consisting of inner and outer mitochondrial membranes separated by an intermembrane space. (Cooper, 2000). It has the…

purine or primidine in both DNA and RNA substrates. Jia et al. for the first time demonstrated that human FTO could also demethylate m6A on nuclear RNAs in vitro, and increase and decrease in m6A was manifested in FTO-depleted and overexpressed-HeLa cell, respectively. FTO function has shown to link to the regulation of body fat homeostasis in human. Consistent with the notion, a study reported that FTO regulates alternative splicing of RUNX1T1, an adipogenic factor, by removing m6As, which are…

The results in this lab for Interphase had twenty cells, Prophase had ten cells, Metaphase had three cells, Anaphase has two and last Telophase, which had only one cell. The results shows that Interphase took the longest for completion and Prophase was the second longest for completion. Telophase took the shortest time for completion. The percentages for each mitosis stage and Interphase was fifty-six percent for Interphase, twenty-eight percent for Prophase, eight percent for Metaphase, six…

An example would be radiotherapy which works on radiation’s ability to kill living cells. When radiation, such as beta radiation enter a living cell it donates energy to nearby atoms and molecules which allows electrons other than those on the outer orbit to be released. This makes the atoms very unstable (Radicals) and are so reactive they last only milliseconds.…

untreated HepG2 cells. Well “B” contained camptothecin, which is used as a control for killing the HepG2 cells instead of the use of plumbagin. Well “C” contained the compound Epigallocatechin Gallate. Well “D” remained empty, because a vehicle treatment is not needed for this experiment. Each well contained 1 ml of HepG2 cells. A negative and positive control where both set up in the 12-well tissue culture plate. The positive control was set to be Well “B”, where the HepG2 cells where treated…

into a beaker of water. The observation was made for the next 5 minutes. Replacing the water in room temperature to warm water did the same procedure. The following observation was made. Diffusion, Dialysis, and Osmosis Effects of Osmosis on Potato Cells: Experiment1 In this portion…

made up by the building blocks of life named “cells”. They are the foundation of life and contain microscopic components called organelles which carry out complex tasks to provide the “basic structural, functional, and biological unit of all known living organisms” (Wikipedia, Cell(Biology), viewed 19th March 2016, Cells can be classified into two major groups- Prokaryotic and Eukaryotic cells. Prokaryotes are organisms that do not contain a cell nucleus and have no membrane bound organelles.…