Science Chapter 3 Test
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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| Element | Any substance that cannot be broken down into simpler substances. An element is made up of one kind of atom.
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| Compound | Two or more elements that are chemically combined. The smallest unit of any compound is called a molecule.
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| Carbohydrate | An energy-rich organic compound made of the elements carbon, hydrogen, and oxygen.
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| Lipid | Energy-rich organic compound, such as fat, oil, or wax, that is made of carbon, hydrogen, and oxygen.
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| Protein | Large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfer. Foods high in protein are meat, eggs, fish, nuts and beans.
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| Amino Acid | A small module that is linked chemically to other amino acids to form proteins.
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| Enzyme | A type of protein that speeds up a chemical reaction in a living thing.
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| Nucleic Acid | Very long organic molecules made up of carbon, hydrogen, nitrogen, and phosphorus, that contain the instructions cells need to carry out all of the functions of life.
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| DNA - What is it's function? - Where is it found? - Write the long term. | One of the two types of nucleic acids. Genetic material that carries information about the organism and it is passed from parent to offspring. The information in DNA directs all the cell's functions. Found in chromatin in nucleus.DEOXYRIBO NUCLEIC ACID
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| RNA - What is the function? - Where is it found? - Write out the long word. | Plays an important role in the production of proteins. It is found in the cytoplasm and the nucleus. It is one of the two kinds of nucleic acids (DNA is the other kind). RIBO NUCLEIC ACID
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| Selectively Permeable Membrane | A property of cell membranes that allows some substances to pass through, while others cannot.
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| Diffusion | The process by which molecules move from an area of higher concentration to an area of lower concentration.
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| Osmosis | The diffusion of water molecules through a selectively permeable membrane.
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| Passive Transport | The movement of materials through a cell membrane without using the cells energy.
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| Active Transport | The movement of materials through a cell membrane using energy.
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| Respiration - C6H1206 + 602 - 6C02 + 6H20 + ENERGY sugar + oxygen - carbon dioxide + water + energy | The process cells use to break down simple food molecules such as sugar and release the energy they contain.
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| Fermentation | The process by which cells break down molecules to release energy without using oxygen.
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| Cell Cycle | The regular sequence of growth and division that cells undergo.
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| Interphase | The stage of the cell cycle that takes place before cell division occurs.
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| Mitosis | The stage of the cycle during which the cells nucleus divide into two nuclei and one copy of the DNA is distributed into each daughter cell.
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| Chromosome | A doubled rod of condensed chromatin.
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| Cytokinesis | The final stage of the cell cycle, in which the cytoplasm divides, distributing the organelles into each of the two new cells.
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| Spindle fibers | Form a bridge between the ends of the cells.
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| Centromere | Each chromosome attaches to a spindle fiber at it's centromere.
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| Centriole | During the Interphase - the cell grows to it's mature size, makes a copy of it's DNA, and prepares to divide into two cells. Two cylindrical structures called centrioles are also copied.
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| Insulin | A chemical produced in the pancreas that enables the body's cell to take in glucose from the blood and use it for energy.
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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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