Atomic nucleus

cells have a cell wall whereas eukaryotic cells don’t. The cell wall is what provides shape and protects the cell components. Nucleus- Nucleus is only found in eukaryotic cells. The structure of a cell’s nucleus is membrane bound and contains chromosomes which consist of DNA. The nucleus maintains the integrity of genes and controls the activities of the cell. The nucleus is referred to as the control centre. Mitochondria- Prokaryotic cells do not have mitochondria whereas eukaryotic cells do.…

Gene expression within a eukaryotic cell is directly impacted by the spatial organization of the nucleus [1]. Cellular organization is carried out at the chromosome-level [1], through means of chromosome folding, gene kissing, looping, nuclear lamina associations and protein-nucleic acid interactions within nuclear bodies. Observation of the nucleolus using Raman microspectroscopy may provide more insight into macromolecule density and distribution, as well as provide answers to the still…

In Metaphor and Thought, Hugh Petrie and Rebecca Oshlag argue that “metaphor is one of the central ways of leaping the epistemological chasm between old knowledge and radically new knowledge” (Petrie and Oshlag 583). Scientists compare cognitive domains in order to apply widely “idealized cognitive models” to previously unexplained natural phenomena (Kövecses 173). In absorbing “truly new forms of knowledge and understanding,” learners construct, reject, and accept metaphorical comparisons of…

Observation of mitosis in Onion root tips Answer the following question to its full explanation: 1. What is Cytokinesis? Compare and contrast cytokinesis between plant and animal cells. Cytokinesis is the last step in cell division, where the cytoplasm divide and the two daughter cells appear. In Animals, the cytokinesis processes occurs through cleavage. Firstly, in the old metaphase plate position, a cleavage furrow is formed. On each sides of the furrow, a contractile ring formed of actin…

mainly composed of the same things. Each organelle is significant to its cell, which are the building blocks of life. At the center of almost every cell is a dense organelle called the Nucleus. It contains the cell's genetic material and usually has a double membrane. The double membrane that protects the nucleus is similar to the thin single membrane made up of proteins and lipids. The membrane controls the passing of substances entering…

Pax6 is vital for proper eye development Eyes are essential organs for processing and interpreting sensory information in the environment, making them crucial features for many organisms to survive. The eye serves many functions, most of which are associated with a specific structure of this organ. For example, the lens, cornea, and iris are necessary for the optic capabilities of the eye. Light sensing is performed by photoreceptors located in the retinal pigmented epithelium. Transmission by…

CELLS VS. PLANT CELLS A plant cell is a eukaryotic cell, which is basically a membrane-bound nucleus. The DNA is located in a plant cell which is contained in the nucleus. Along with having a nucleus, plant cells have membrane-bound organelles. These organelles are accountable for constructing hormones and enzymes that deliver energy for a plant cell. An animal cell is as well a eukaryotic cell that has a nucleus and organelles. Animal and plant cells are very similar, but they are also very…

There are three samples of observation. The first one is called Mitotic stages, the second one is called As 114d, and the third one is called Lily meiosis. Mitosis stages is animal cell. This sample is brown. It combined with two big parts of the cell. There are many small bubbles in first part. The sizes of bubbles inside the big bubble are random. They separate randomly. Some of them are stick together, and some of them are alone. The second part of the sample is white and brown. The second…

In a cell, all of the organelles are a necessary part of the whole. The nucleus is the brains of the cell. The nucleus is also where the DNA is located. DNA are the proteins that hold the genetic code necessary for the cell to replicate. The DNA replication takes place in the ribosomes, where the proteins are translated in order to be replicated. The plasma membrane covers the entire cell and oversees the flow of chemicals that come both in and out of the cell. The plasma membrane creates a…

et Assignment 1.2 DNA or deoxyribonucleic acid is a molecule which carry genetic instruction used in the functioning ,development ,reproduction and growth of all living organism including viruses. DNA are composed of simpler monomer units called nucleotide. They are termed polynucleotide as DNA have two strands. Nucleotides is composed of four nitrogenous base, they are ADENINE(A), THYMINE (T),CYTOSINE(C), and GUANINE (G).””(DNA) DNA bases pair up with each other, A:T and C:G, to form…