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9 Cards in this Set
- Front
- Back
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When does free energy become available to organisms? What is free energy?
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free energy is energy available to do work....ask how it becomes avbl
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Where are fats digested? The single place! Where is cellulose digested?
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fats are digested in the small intestine....cellulose is not digestable by human means
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Entropy—ashes from a fire—compare energy and entropy
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more energy the higher entropy...the level of disorder in a system...ashes have less entropy and more energy than before when were log
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What is an enzyme, catalyst, substrate and activation energy?
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enzyme is a protein that helps to speed up chemical reactions, cataylist is an example (ask about this)
activation energy is energy needed to initate or start a chemical reaction....substrate - Material or substance acted upon by an enzyme. |
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Why is peristalsis imperative to digestion?
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peristaliss is the process of contraction and expansion by which food is moved through your intestines and into your bowels
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What is the difference between a ribosome and a ribozyme?
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ribosome is an organelle consisting of two subunits and functioning as the site of protein synthesis......ribozyme is an enzymatic RNA molecule, RNA that performs a catalytic function
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How do organisms store energy----heat or chemical?
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ASK
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Put the parts of the digestive system in correct order:Stomach, Large intestine Small intestine, Oral cavity, Epiglottis, Anus, Esophagus
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oral cavity --- epligottis, esophagus, stomach, small intestine, large intestine, anus
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Why are chemical reactions important for living cells?
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ASK
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