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12 Cards in this Set
- Front
- Back
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atom |
the smallest chemical unit of matter |
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molecule |
two or more atoms linked together to make a substance with unique properties |
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photosynthesis |
the process by which green plants and some other organisms use the energy of sunlight and simple simple chemicals to produce their own food |
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metabolism |
the sum total of all processes in an organism that convert energy and matter from outside sources and use that energy and matter to sustain the organisms life function |
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receptors |
special structures that allow living organisms to sense the conditions of their internal or external environment |
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precocial |
a term used to describe offspring that are born able to hear, see, move about, regulate body temperature, and eliminate waste without a parent's help |
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altricial |
a term used to describe offspring that are born without at least one of the following abilities: hear, see, move about, regulate body temperature, or eliminate waste |
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cell |
the smallest unit of life in creation |
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What are the 4 criteria for life? |
1. All life forms contain DNA 2. All life forms have a method by which they extract energy from the surroundings and convert it into energy that sustains them. 3. All life forms can sense changes in their surroundings and respond to those changes. 4. All life forms reproduce. |
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What does DNA provide to a living organism? |
DNA provides the information necessary to take a bunch of lifeless chemicals and turn them into a living system. |
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Compared to other molecules, is DNA small or large? |
DNA is LARGE compared to other MOLECULES, but it is remarkably small when you consider all the information it stores |
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Does DNA store its information more efficiently or less efficiently than a computer? |
a DNA molecule represents THE MOST EFFICIENT MEANS OF STORING DATE IN ALL CREATION. The best computer disk made today cannot even come close to storing information as efficiently as does DNA! |
