4.1 and 4.2 Bio
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| cell | in biology, the smallest unit that can perform all life processes; cells are covered by a membrane and contain DNA and cytoplasm
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| cell theory | the theory that states that all living things are made up of cells, that cells are the basic units of organisms, that each cell in a multicellular organism has a specific job, and that cells come only from existing cells
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| plasma membrane | a phospholipid layer that covers the cells surface and acts ass a barrier between the inside of the cell and its wall
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| cytoplasm | the region of the cell within the membrane that includes the fluid, the cytoskeleton, and all of the organelles except the nucleus
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| cytosol | the soluble portion of the cytoplasm, which includes molecules and small particles, such as ribosomes, but not the organelles covered with membranes
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| nucleus | in a eukaryotic cell, a membrane-bound organelle that contains he cell's DNA and that has a role in processes such as growth, metabolism, and reproduction
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| organelle | 1 of the small bodies that are found in e cytoplasm of a cell and that are specialized to perform a specific function
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| prokaryote | a single-celled organism that does not have a nucleus or membrane-bound organelles; examples are archaea and bacteria
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| eukaryote | an organism made up of cells that have a nucleus enclosed by a membrane, multiple chromosomes, and a mitotic cycle; eukaryotes include protists, animals, plants, and fungi but not archaea or bacteria
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| tissue | a group of similar cells that perform a common function
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| organ | a collection of tissues that carry out a specialized function of the body
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| organ system | a group of organs that work together to perform body functions
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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