Name: ______Class: ______Date: ______
Unit 2 Review Sheet (10/03 – 10/24)
- What are the 3 particles that make up an atom? What are their charges (positive, negative, neutral)?
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- Define (in terms of # of protons, neutrons, and/or electrons): Atomic Number and Atomic Weight.
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- Use the following information about Carbon to determine the number of protons, neutrons and electrons in a neutral atom of Carbon: Atomic Weight = 12, Atomic Number = 6
# protons: ______
# neutrons: ______
# electrons: ______
- What is the difference between ionic and covalent bonding?
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- What type of bonding (or “attraction”) allowed me to “float” a paperclip on top of water? Why does a water molecule have “partial charges?” What do we call this? Draw a few water molecules to show how this bonding occurs between water molecules.
- According to the pH scale, what values define an acid? A base? Neutral?
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- Complete the table below on Organic Compounds:
Organic Compound / Building Blocks / Important function / Example
Glucose
Amino Acids
n/a / Fat
DNA, RNA
- What two elements BOTH must be found in organic compounds? Give me one example of an organic and inorganic compound.
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- What indicator is used to determine if starch is present in a compound? What does a positive test look like?
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- What indicator is used to determine if glucose is present in a compound? What does a positive test look like?
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- What indicator is used to determine if a solution is acidic or basic? What do the results look like if the solution is acidic? Basic?
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- What does the Cell Theory state (hint: there are three parts)?
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- Define the function of the following cell organelles:
- Nucleus :
- Cell Membrane:
- Ribosome:
- Vacuole:
- Mitochondria:
- Chloroplast:
- Cell Wall:
- Endoplasmic Reticulum (smooth and rough):
- What 2 cell organelles are found in plant cells but NOT animal cells?
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- What is the equation for photosynthesis? What ORGANELLE does photosynthesis take place in?
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- What is the equation for cellular respiration? What ORGANELLE does cellular respiration take place in?
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- Draw a diagram to show the relationship/cycle between cellular respiration and photosynthesis.
- What can ATP be used for?
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- What does paper chromatography allow us to do (hint: use your review book)?
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- What is a catalyst? What do we call a biological catalyst? What type of organic molecule (carbohydrate, lipid, protein or nucleic acid)is the biological catalyst?
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- What do we call the reactants of an enzyme-catalyzed reaction? ______
- Where in an enzyme does the reaction take place? ______
- Why are enzymes like a lock and key? Explain.
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- What two environmental factors affect the function of an enzyme?
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- What is synthesis? ______
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