Chapter 2 - Questions and Answers
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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| Why is an atom in its natural and usually unstable state, electrically neutral? | The # of Protons = the # of Electrons.
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| How do you make a positive ion? | 1 Atom loses an electron.
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| How do you make a negative ion? | 1 Atom gains an electron.
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| How does an ionic bond form? | Opposite molecules attract, forming a bond. Give up or receive an electron.
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| What in your body is made up of ionic compunds? | Bones and teeth.
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| What is the difference between non-polar covalent bonds and polar covalent bonds? | Non polar covalent bonds equally share electrons and polar covalent bonds unequally share electrons.
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| How do Hydrogen Bonds form? | A slightly positive hydrogen atom is attractrd to a slightly negative oxygen or nitrogen atom forming a weak bond.
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| Which bonds are used to form new molecules? | Ionic Bonds and Covalent bonds.
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| Which bonds are used to hold molecules together? | Hydrogen Bonds
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| What characteristics define inorganic molecules? | Simple in structure ; ionic or covalent bonds / flexible.
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| What characteristics define organic molecules? | Complex is structure ; always have Ca and H ; only use covalent bonds.
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| What are carbohydrate's functions in the body? | Primary source of energy.
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| What si the monomer of the carbohydrates? | (blank)
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| Whay is glucose an important monosaccharide? | Primary energry source for cells.
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| What are three common types of Disaccharides? | (blank)
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| What are the three major polysaccharides? | (blank)
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| What are the basic functions of Triglycerides? | Long term energy storage; Insulation; Protective cushion; Waterproofing.
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| What are the basic functions of Phospholipids? | Make up membrane surrounding every cell; Polar head; Non-Polar tails ; only lipid that can interact with water.
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| What are the basic functions of Steroids? | Cholesterol, testosterone, biles salts.
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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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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.
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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