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1 day ago · Can you ID the steps/phases/stages of the cell cycle when viewed under the microscope? Learn with flashcards, games, and more — for free.
3 days ago · BIO 104 - Introductory Biology w/lab. Introduction to basic concepts in biology. Topics include the scientific method, cell structure and function, genetic inheritance, evolution, diversity of life at the organismal level, ecology and ecosystems. Biology as an experimental science and biotechnology will be explored through laboratory experiences.
5 days ago · cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell is often a complete organism in itself, such as a bacterium or yeast. Other cells acquire specialized functions as they mature. These cells cooperate with other specialized cells and become ...
3 days ago · Mitochondrion. Two mitochondria from mammalian lung tissue displaying their matrix and membranes as shown by electron microscopy. A mitochondrion ( / ˌmaɪtəˈkɒndriən /; [1] pl.: mitochondria) is an organelle found in the cells of most eukaryotes, such as animals, plants and fungi.
1 day ago · The cells of plants, algae, fungi and most chromalveolates, but not animals, are surrounded by a cell wall. This is a layer outside the cell membrane, providing the cell with structural support, protection, and a filtering mechanism. The cell wall also prevents over-expansion when water enters the cell.
2 days ago · The treatment of HMC-1 cells with PAA concentrations up to 50 μM for 24 h had no effect on cell viability (Fig. 4A). HMC-1 cells were stimulated with compound 48/80 in the presence or absence of ...
1 day ago · The cell wall of bacteria is also distinct from that of achaea, which do not contain peptidoglycan. The cell wall is essential to the survival of many bacteria, and the antibiotic penicillin (produced by a fungus called Penicillium) is able to kill bacteria by inhibiting a step in the synthesis of peptidoglycan.
