McDougall 7th Science Unit C Chapter 1 The Cell
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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| unicellular | A term used to describe an organism that is made up of a single cell.
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| multicellular | A term used to describe an organism that is made up of many cells.
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| microscope | An instrument that uses glass lenses to magnify an object.
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| bacteria | A large group of one-celled organisms that sometimes cause disease. Bacteria is a plural word; the singular is bacterium.
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| cell membrane | The outer boundary of the cytoplasm, a layer that controls what enters or leaves the cell; a protective covering enclosing an entire cell.
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| cytoplasm | A thick, gelatin-like material contained within the cell membrane. Most of the work of the cell is carried out in the cytoplasm.
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| nucleus | The structure in a eukaryotic cell that contains the genetic material a cell needs to reproduce and function.
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| eukaryotic cell | A cell in which the genetic material is enclosed within a nucleus, surrounded by its own membrane.
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| prokaryotic cell | A cell that lacks a nucleus and other organelles, with DNA that is not organized into chromosomes.
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| organelle | A structure in a cell that is enclosed by a membrane and that performs a particular function.
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| cell wall | A protective outer covering that lies just outside the cell membrane of plant cells.
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| chloroplast | An organelle in a plant cell that contains chlorophyll, a chemical that uses the energy from sunlight to make sugar.
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| mitochondria | Organelles that release energy by using oxygen to break down sugars.
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| specialization | The specific organization of a cell and its structure that allows it to perform a specific function.
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| tissue | A group of similar cells that are organized to do a specific job.
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| organ | A structure in a plant or animal that is made up of different tissues working together to perform a particular function.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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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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