1. The Diversity of Cells
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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| cells | the smallest functional and structural unit of all living organisms.
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| parts of cells | Nucleus, cytoplasm and a membrane.
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| true | All living things are made of cells.
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| Robert Hooke | First scientist to study cells with a microscope.
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| Anton Van Leeuwenhoek | Studied cells also and was first to study bacteria under a microscope. Studied animals
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| Cell Theory | all organisms are made of one or more cells, the cell is the basic unit of life, and all cells come from existing cells.
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| False | Cells can be seen with the naked eye.
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| Small cell size | The area of a cell's surface limits the cell size
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| Cell membrane | A phospholipid layer that covers a cell's surface; it acts as a barrier between the inside of a cell and the cell's environment. Separates cell from environment.
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| cytoplasm | liquid portion of the inside of a cell
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| organelle | one of the small bodies in a cell's cytoplasm that are specialized to perform a specific function.
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| DNA | the genetic material
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| nucleus | in a eukaryotic cell, a membrane bound organelle that contains the cell's gentic material called DNA and that has a role in processes such as growth metabolism, and reproduction.
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| Two types of cells | Prokaryotes and Eukaryotes
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| Prokaryotes | single celled organisms that do not have a nucleus or membrane bound organelles.
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| Eukaryotes | cells that have a nucleus.
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| bacteria | The most common type of prokaryote and are the smallest cells known to man.
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| Characteristics of Bacteria | No nucleus, they do have DNA, and contain ribosomes.
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| ribosomes | tiny round organelles made of protein and other material.
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| Types of Prokaryotes | Bacteria and Archae
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| Three types of Archea prokaryotic cells | heat loving, salt loving and methane making.
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| Methane | kind of gas found in a swamp
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| extremophiles | live in places of extreme conditions
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| True | Eukaryotic cells are larger than prokaryotic cells.
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| Characteristics of Eukaryotic cells | have a nucleus, membrane bound organelles, and some are multicellular.
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