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| What is the ratio of hydrogen to oxygen molecules in a carbohydrate? |
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Using the information below, what is the correct order for the steps of scientific inquiry?
• 1. Theory
• 2. Conclusion
• 3. Hypothesis
• 4. Experimentation |
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Hypothesis
Experimentation
Conclusion
Theory |
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| A characteristic of unsaturated fats is that they |
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have double bonds in their carbon chains
as a result they are usually liquid at room temperature |
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| A substance that prevents large changes in the pH of a solution is |
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| If the pH of a solution changes from 2 to 5, then the solution has |
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| lost hydrogen ions and become less acidic. |
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| What is made up of a long chain of glucose molecules? |
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| starch and cellulose, which differ in the bond between the glucose molecules |
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| Compared to saturated fats, unsaturated fats contain less |
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| What are components of a phospholipid? |
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| fatty acids, phosphate group, glycerol |
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| One of the functions of DNA is to |
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A group of people was used to test the effectiveness of a new toothpaste compared to their regular toothpaste. Which of the following procedures represents a controlled test?
a) Have everyone in the group brush with the new toothpaste.
b) Have half the group brush with the new toothpaste and the other half not brush their teeth.
c) Have half the group brush with the new toothpaste and the other half with their regular tooth-paste.
d) Have everyone brush with both their regular toothpaste and the new toothpaste. |
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c) Have half the group brush with the new toothpaste and the other half with their regular tooth-paste.
is the only example that is a controlled test |
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| The growth rate in most plants increases when water supply is plentiful. A possible explanation would be that water is a reactant in photosynthesis. This explanation is an example of |
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| Glucose in cells is used primarily |
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| What are composed of nucleotides? |
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| The bonding of a glucose molecule and a maltose molecule would result in a |
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| During protein synthesis, peptide bonds are formed at the |
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| Give an example of negative feedback. |
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| The thermostat shuts off the furnace as the room temperature reaches 20° C |
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Term
| A water molecule joins with an adjacent water molecule by forming a(n) |
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| A radioactive element is sometimes used to trace the pathway of chemical reactions in the cell. If newly synthesized proteins are radioactive, the radioactive element used could be |
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| The level of protein structure represented by the alpha-helix shape is |
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| The fluid-mosaic membrane model describes the membrane as having |
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| The maintenance of the body's constant internal environment is termed |
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| An unsaturated fat could be changed into a saturated fat if |
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| hydrogen atoms were added. |
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The hydrolysis of which of the following substances will produce the greatest number of glucose molecules?
a) a disaccharide
b) sucrose
c) a polysaccharide
d) maltose |
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| Basics_____hydrogen ions where acids_____hydrogen ions. |
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| Basics gain hydrogen ions and acids lose hydrogen ions. |
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