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| A person who studies life science. |
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| An experimental group is exposed to the same conditions in an experiment as the control group and is also exposed to additional variable to test the effect of the variable on the hypothesis statement. |
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| The factor which is changed and to which the experimental group is exposed to in a controlled experiment. |
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| Scientific Method Process |
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| The processes by which scientists ask and then go about answering questions. |
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| Organisms that are made up of two or more cells. |
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| Specialized structures that allow an organism to sense and respond to its environment. |
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| A group of chemical reactions that cells use to convert the energy contained in the food they make or eat into energy the organism can use. |
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| The process through which plants capture the sun's energy and then convert it into energy the plant can use. |
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| Maintenance of a stable internal environment. |
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The two part name organisms receive as they are classified into more and more specific groups in the seven-level classification system; consists of the genus and species name. |
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| Groups of atoms bonded together. |
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| Molecules that contain carbon (and usually oxygen and hydrogen) and are normally made by living cells. |
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These are made up of many, sometimes thousands, of simple carbohydrate molecules linked together. These are usually made to store excess simple carbohydrates.
Simple carbohydrate: Made up of one, two, or three simple sugars linked together. |
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One of four classes of organic molecules.
Some lipids are used to store excess energy. Others form the boundary of the cell. They are also made from atoms of oxygen, carbon, and hydrogen. These are structurally more complex than carbohydrates. |
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| Lipids that are solid (like lard) at room temperature. |
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All proteins are built by linking together smaller units called amino acids. They can be made up of more than ten thousand amino acids linked together. They contain carbon, oxygen, hydrogen and can also include sulfur and nitrogen.
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| 5 ways data can be obtained for an experiment |
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Data can be obtained thru the 5 senses which are:
smell, taste, touch, sight, and hearing. |
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| Why is DNA called the "blueprint of life"? |
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| It is called the blueprint of life becasue DNA contains the information that determines everything about an organism. |
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| Four types of organic molecules |
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| The four classes are: carbohydrates, lipids, protens and nucleic acids. |
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| Carbohydrate molecules are composed of ______________. |
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| carbon, oxygen and hydrogen atoms. |
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| Difference between matter, mass and weight |
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Matter: Anything that takes up space and has mass.
Mass: The amount of matter that something has.
Weight: This is determined by the pull of gravity. |
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| What is air mainly made up of? |
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| Air is made up of four different gases - nitrogen, oxygen, argon and carbon dioxide. |
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Measured: These calculate length and mass.
Derived: Units such as those for surface area, temperature, volume and velocity are called derived units and are the result of mathematical relationships between two base units, or other derived units. |
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| Sexual vs. Asexual Reproduction |
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Sexual reproduction - requires a male and a female organism to mate, or to combine their genetic materials. DNA from the male and female form a new cell.
Asexual reproduction - the formation of a new cell or organism without the exchange of genetic material. It is accompllished by a singel cell splitting into one or more cells exactly like it. |
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| Aerobic and Anaerobic organism |
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Aerobic organism - Organisms that need oxygen to survive.
Anaerobic organism - Die in the presence of oxygen. This group of organism is typically a type of bacteria. |
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