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| Name the three parts that make up an atom: |
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| proton, neutron, and electron. |
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| T/F: Neutrons are negatively charged. |
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| 99% of an atom is comprised of: |
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| ... are substances that cannot be broken down by any chemical reaction into a simpler substance. Examples are oxygen, carbon, and hydrogen. |
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| The ... is the smallest, irreducible particle of any substance. |
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| ... are atoms of an element that have a different number of neutrons but the same number of protons andd electrons. |
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| When several different elements are bonded together you have a ... , which is the smallest particle of a substance that retains the chemical and physical properties. |
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| ... are molecules with the same chemical formula but different structures. |
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| ... is anything that occupies space, has weight, and can be perceived by one or more senses |
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| gaining/losing electrons to another atom |
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| bonds that hold amino acids together |
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| How many protons does copper have? |
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| How many electrons are found in an oxygen atom? |
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| What is the chemical symbol for Potassium? |
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| What is the atomic number for Fluorine? |
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| How many electrons are in the outer most shell for Calcium? |
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| Free radicals play important roles in the normal and abnormal functioning of the body. |
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| Microwave ovens give off ionizing radiation. |
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| Name at least three potential harmful effects of food irradiation. |
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- sterile food becomes more susceptible to pathogens
- decreased food nutrients.
- less safe food handling precautions resulting in more fecal matter in food. |
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| Name three sources of acid in the body: |
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-fruit
-cellular activity
- acid ash foods |
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| Draw the pH scale in the space below and include the ideal pH for the urine and saliva |
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| T/F: The pH of the blood is always between 7.35 and 7.45 |
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| If urine smells of ammonia and test alkaline it is called what? |
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| A pH reading of 4.0 is two times more acidic than 6.0. |
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| An isomer with a left-handed spin is called: |
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| Synthetic vitamin E only contains the biologically active isomer. |
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| Digestion is the process of breaking ... down into monomers. |
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| What is the name of the body part that allows only one molecule through the intestinal wall at one time? |
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| Energy cannot be created without the presence of oxygen. |
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| Why does eating too many refined carbs cause you to become tired after a meal? |
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| A whole bunch of glucose releases quickly into the blood causing for a great increase in insulin. Insulin then collects glucose not leaving enough for the blood. Resulting in fatigue, and that fogged over tired feeling. |
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| Name the 3 elements that make up a glucose molecule: |
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| Combining fat along with carbodyrates in a meal slows the release of glucose into the bloodstream. |
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| Dietary cholesterol contributes to a large part of the total amount of cholesterol in the body. |
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| Name three ways trans fatty acids affect the human body when consumed. |
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- contributes to osteoporosis.
- depresses the production of milk fat in nursing mother.
-contributes to breast cancer. |
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| Butter consumption is a major contributing factor in the rise of heart disease and cancer rates over the past fifty years. |
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| Do you feel cooking with a microwave is safe? explain. |
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| Seedless watermelons and broccoflower were created using genetic engineering technology. |
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| Name the top four genetically engineered crops. |
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| Explain why GMO foods may be hazardous to our health. Be sure to cite at least three examples from the manual. |
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