Eukaryote

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    PROKARYOTIC AND EUKARYOTIC CELLS https://www.google.co.uk/search?q=images+of+prokaryotic+and+eukaryotic+cell&safe=active COMPARISON OF THE STRUCTURE OF EUKARYOTIC AND PROKARYOTIC CELLS STRUCTURE EUKARYOTIC CELL PROKARYOTIC CELL Nucleus Present Absent Cytoplasm Present Present Mitochondria Present Absent Chloroplasts Present Absent Endoplasmic Reticulum Present Absent Ribosomes Relatively large Small Cytoskeleton Present Absent Chromosomes DNA arranged in several DNA arranged in…

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    We are began as a single cell, but by the time that we are an adult, we have trillion of cells in our body. This happen because our cells are constantly dividing and when they divide they make new cells. A group of cells form a tissue, a tissue form the organ, an organ compound the system of organ and then the individual. We all have this question, why our cells are dividing constantly? Cells divide to replace old or damaged cells, and also living organism can grow and reproduce. There are two…

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    Mitosis

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    Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, and each set ends up in its own nucleus. Mitosis is composed of several different components: Interphase, Prophase, Metaphase, Anaphase, and Telophase. Interphase is the stage that happens right before mitosis, this is where a typical cell spends most of its life. In the prophase stage of mitosis, the first stage of cell division, the chromosomes become visible as…

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    Metaphase I (MI) (Assembly of meiotic apparatus) During Metaphase I, Chromosomes move together along the metaphase plate. DNA replication, repair spindle function, and chromosome segregation are controlled by regulatory mechanisms of spindle assembly checkpoints (Elledge, 1996). The cellular spindle apparatus includes the spindle microtubules, associated proteins, and any centrosomes or asters present at the spindle poles. The dynamic lengthening and shortening of spindle microtubules (Mitchison…

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    Nucleus Mitochondria

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    Every cell in the body has a nucleus. The nucleus is the largest organelle and is contained within a membrane. The nucleus contains the body’s genetic material, which directs the activities, like the brain of the cell. This is built from DNA and proteins called histones coiled together forming a fine network of threads called chromatin. When under the microscope the most prominent part of the cell is the nucleus. The most visible structure within the nucleus is the nucleolus, which is where…

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    Plant Growth Lab

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    Plant Growth Lab The world is full of variety of species that help make the Earth a unique place to live in. Many of the species that live on Earth are plants. Plants can be Bryophytes or Tracheophytes. Bryophytes are non vascular and lack roots, stems and leaves. Tracheophytes can be spore producing or seed producing. Seed producing Tracheophytes can be Gymnosperms or Angiosperms. Gymnosperms have seeds that are enclosed in a cone and would include Pines and Coniferous trees. Angiosperms…

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    Cell biology 1. A cell is eukaryotic because  Is generally larger and much more sophisticated than prokaryotic cells due to the presence of a complex series of membranes that divide a typical eukaryotic cell into compartment.  Eukaryotic cell has an organized nucleus with a nuclear envelop.  Has membrane bound organelles  Contain linear DNA molecule that are larger than the (circular) DNA molecules in prokaryotic cells and, in association with proteins, form structures called chromosomes.…

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    Meiosis Cell Cycle

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    Genes are what parent passes on to their off spring. The reason that the off spring don’t look identical to the parent is due to a process called crossing over during meiosis.. Meiosis creates new cells that contain different data than that of the parent due to the genes getting shuffled around by cross linking. The chromatids which are parts of the chromosome cross over bits of data making the new cell unique from the parental chromosome. Dividing this way will ensure that the genes will be…

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    Essay On Coelomates

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    A coelomate has a fluid filled body cavity, which is completely lined by the mesoderm. The organs of a coelomate are suspended within the fluid filled body cavity. This provides protection from any shock put on the organs. This fluid also provides shape to animals without a hard skeleton. Animals like Arthropoda and Echinodermata are examples of coelomates. Acoelomates lack internal cavities and fluid altogether. Their organs are located within the mesoderm which means less protected from shock…

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    Mitosis & Meiosis are the two major cell division processes. We know that mitosis is used for fulfilling a body’s cell division requirements. However, meiosis is use solely used for one purpose in a human body. It is used for the production of gametes cells, also known as the sex cells. Mitosis and meiosis are quite similar in processes with very few differences. One of the differences is that mitosis has one division whereas there are two divisions in meiosis. This is the reason meiosis is also…

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