I will need this by tomorrow at the end of the day, Sunday 9/26.  Good explanations for each one to make sure I understand each piece.  Thanks.2015_Problem Set 2 copy.pdf 

Skill Check Exercise 1: Introduction to Scientific Inquiry. NAME:______________Lab Section__________ Activity 1: Observing a Birthday Candle Observations of unlighted candle (use data sheet photo to make observations 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Observations of Lighted Candle (use video link on data sheet to open and watch video_ 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Question 1-1: How did your observations compare with those of others in the class. Do you believe that the observations of others in the class are more or less valid than yours? Why or why not? Write three questions that you would like to have answered based on your candle observations of the burning candle. 1. 2. 3. Activity 2: What you see is what you get…or is it? Question 2-1: How much sugar is found in each serving of the soft drink? Question 2-2: What is the total amount of sugar that would be found in the entire bottle? (Hint: multiply the amount of sugar in one serving by the number of servings the bottle contains). Question 2-3: Can you see the sugar that is in the soft drink while it is in the bottle?Why or why not? Question 2-4: If you cannot see the sugar in the soft drink, how could you go about proving that it is there? Activity 3: Chemistry and a Burning Candle Observations (use data from the data sheet to answer these questions) Results with cold beaker held over candle for 10 seconds Results with cobalt chloride test paper Results with beaker held over candle for 30 seconds Results with bromothymol blue indicator in funnel Results with 250 ml beaker covering the candle For step 11 in the procedure, What happens to the candle? Why do you think this occurs? What might be present in the air that the candle would need to continue burning? Activity 4: The Candle-Human Connection: Observations Results of plastic bag covering hand and arm. Results of blowing into bromothymol blue in beaker Thinking Critically: Analysis of Data Table 1: Analysis of Results of Activities 2, 3 & 4 Test Performed Results of Experiment OR Was a reactant consumed? Was a product produced? Identity of reactant or product Cold beaker/cobalt chloride test paper Beaker held over candle 30 seconds Bromothymol blue in funnel Beaker covering candle Plastic bag covering arm Blowing into bromothymol blue Preparation of Summary Statements and Chemical Equations Summary Statement 1: The three products produced by the burning candle are ___________________, ____________________ and _____________________. Summary Statement 2: The products produced by the human are ______________ and _______________. Summary Statement 3: One reactant required for the candle to burn is _____________. The equation for combustion of a candle WAX + ____________ → _____________ + ______________ + _______________ The equation for cellular respiration in a human FOOD + ____________ → _____________ + ______________ + Energy Activity 5: Communicating the Conclusions ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Pre-Lab Report SheetLab Section: . Modeling DNA Structure, Replication, & Protein Synthesis Exercise Name: . Before coming to labs carefully read the previous pages on DNA Structure, DNA Replication, DNA Transcription, and RNA Translation then answer these pre-lab questions.Be prepared to hand in your responses to the pre-lab questions at the start of lab. Explain how it is possible for you to have so many different kinds of cells in your body (e.g. Explain in your own words your understanding of the central dogma of biology.Answer each of the following questions.What is the primary structure of a protein?Of what importance is the primary structure of a protein?What ultimately determines the primary structure of a protein?What is a mutation?During what process are mutations most likely to occur?Why do mutations affect the primary structure of a protein?Describe in your own words the structure of DNA.Describe in your own words how DNA makes copies of itself. (I.e. Describe DNA Protein synthesis involves two processes, transcription and translation. Describe in your TranscriptionTranslation muscle cells, skin cells, liver cells, etc.) when nearly all of the cells contain the same 46 molecules of DNA (chromosomes). replication.). own words how each process occurs.