science seif
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 | basic units of structure and function in living things.
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| microscope | instrument that make small objects look larger.
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| cell theory | explanation of the relationship between cells and living things.
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| cell wall | is a rigid layer that surrounds the cells of plants and some other organsims
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| cell membrane | controls which substances pass into and and out of the cell
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| nucleus | a large oval structure acts as the cell's control center
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| ribosomes | small grain-shaped organelles that produce protein
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| cyytoplasm | fluid fills the area between the cell membrane and the nucleus
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| mitochondria | organelle converts energy stored in food to energy a cell can use to live and function
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| endoplasmic reticulum | organelle which has a network of membranes that produce many substances
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| Golgi apparatus | organelle that receive protein and other materials from the ER and package them, and distributes them to other parts of the cell or outside of the cell.
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| vacuoles | a type of sac which stores water, food pr other materials needed by the cell
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| lysosomes | organelle that break down large food particles into smaller ones
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| chloroplast | green structures that capture energy from sunlight and changes it to form of energy the cell can use.
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| multicellular | have many cells
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| unicellular | have one cell
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| tissue | a group of similar cells that work together to perform a specific function
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| organ | a group of different kinds of tissues that function together
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| organ system | a group of organs that work together to perform major function
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| element | any substance that cannot be broken down into simpler substance
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| compound | form when two or more elements combine chemically
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| carbohydrates | energy rich organic compounds made of the elements carbon, hydrogen, and oxygen
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| lipids | compounds that are made mostly of carbon, hydrogen and oxygen
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| proteins | large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and in some cases sulfur
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| nucleic acid | very long organic molecules consists of carbon, hydrogen, oxygen, nitrogen and phosphorus
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| DNA | genetic material that carries information about an organism and is passed from parents to offspring
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| double helix | the shape of the DNA molecule
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| selectively permeable | some substances can pass across the cell membrane while others cannot.
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| passive transport | movement of dissolved materials across a cell membrane without using the cell energy
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| active transport | movement of materials across a cell membrane using the cell energy
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| diffusion | process by which molecules move from area of higher concentration to an area of lower concentration
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| osmosis | diffusion of water molecules across a selectively permeable membrane
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| endocytosis | the cell membrane changes shape and engulfs particles
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| exocytosis | the cell membrane allows large particles to leave a cell
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| photosynthesis | process by which a cell capture energy in the sunlight and uses it to make food
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| autotroph | organism the can make its own food
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| heterotroph | organism that cannot make its own food
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| chlorophyll | green pigment inside the chloroplast that absorbs light
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| cellular respiration | process by which cells obtain energy from glucose
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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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Created by:
mohamedelhussien
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