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29 Cards in this Set
- Front
- Back
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What is a dependent variable?
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The variable that you measure and is affected.
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What is an independent variable?
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The variable changed by you.
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What is a controlled variable? |
The variable that is constant and unchanged.
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What is a hypothesis?
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A hypothesis is an assumption or guess.
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Name the 7 Characteristics of life... |
1.) Growth and Development 2.) Reproduction 3.) Genetic Code 4.) Uses materials and energy 5.) Change Overtime 6.) Responds to Environment 7.) Stable Internal Environment |
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What is a stimulus? |
A thing or event that evokes a specific reaction
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What is a response?
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A reaction to something.
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Name the 4 macromolecules...
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1.) Lipids 2.) Carbohydrates 3.) Proteins 4.) Nucleic Acids |
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What are the elements in Lipids? |
C,H
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What are the elements in Carbohydrates?
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C,H,O
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What are the elements in Proteins?
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C,H,O,N
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What are the elements in Nucleic Acids?
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C,H,O,N,P
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What are the subunits in Lipids?
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Fatty Acids Glycerol |
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What are the subunits in Carbohydrates?
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Monosaccharide Glucose Galactose Fructose |
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What are the subunits in Proteins?
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Amino Acids
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What are the subunits in Nucleic Acids?
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Nucleotides
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How do lipids function in the human body?
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Stores Energy Insulation Controls Reproduction Supports Protects |
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How do carbohydrates function in the human body? |
Primary Energy Source
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How do proteins function in the human body?
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Builds muscle tissue Fights infections Carries oxygen to cells Repairs Controls Reactions |
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How do nucleic acids function in the human body?
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DNA stores and transfers genetic info RNA contains instructions for building proteins |
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Give 3 examples of lipids...
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1.) Wax 2.) Oil 3.) Cell membrane cover |
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Give 3 examples of carbohydrates...
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1.) Starch (bread, pasta, etc.) 2.) Cellulose 3.) Glycogen |
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Give 3 examples of proteins...
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1.) Fish 2.) Hemoglobin 3.) Enzymes |
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Give 2 examples of nucleic acids...
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1.) DNA 2.) RNA |
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What is a subunit?
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A subdivision of a larger unit.
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What are enzymes?
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A substance produced by a living thing that acts as a catalyst to bring about a specific biochemical reaction.
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What do enzymes do in our body?
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Proteins that control the speed of chemical reactions.
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What is a catalyst?
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A substance that speeds up a rate of a chemical reaction.
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What is a substrate?
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A substance or layer that underlies something, or in which some process occurs, in particular.
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