Only accepting $1 bids only !!!
If I get a good grade ill give you a good tip :)
Worksheet 5
Respiration and Photosynthesis (25 points)
Photosynthesis and Cellular Respiration Lab Report
You should be sure to do your own work and type your answers using complete sentences.
Please use the lab manual graph paper when indicated.
Activity 1: Measuring CO2 Production in Yeast
- What is your hypothesis for this experiment?
- Table sugar is composed of which monosaccharides? What is the concentration of
each type of monosaccharide in table sugar? - Lactose is composed of which monosaccharides? What is the concentration of each
type of monosaccharide in lactose? - In this experiment, what is the independent variable?
- In this experiment, what is the dependent variable?
- In this experiment, what is the control treatment?
- Please use the graph paper provided to plot the results of your experiment (i.e.,
balloon circumference over time for the four treatments). Do not forget to provide a
figure title as well as axis labels.
Activity 2: Measuring CO2 Use by Elodea - Which set of photosynthesis reactions was being directly measured in this
experiment? - What other molecules are necessary in that set of reactions?
- Given what you know about the reactions of photosynthesis, why would the color of
the dye not change from yellow to red in the dark? - In order for the Elodea leaves to photosynthesize, they need light and both
__________ and ________ .
Activity 3: Oxygen Production in Elodea - Write the complete photosynthesis equation being careful to obey the first law of
thermodynamics. - Which set of photosynthesis reactions was being directly measured in this
experiment? - What other molecules are necessary in that set of reactions?
- Why was sodium bicarbonate used in this experiment?
Conclusions - Which main groups of organis