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Course Activity: Aerobic and Anaerobic Respiration
10 prepare for the experiment, follow these steps:
1. Put one or two ice cubes in 1 cup of water. Chill the cup of water in the refrigerator for 1 to 2 hours. Remove
any remaining ice when you take the water out of the refrigerator. This cup holds the ice-cold water.
2. Heat up three cups of water in the microwave for 15 to 20 seconds until they reach 100°F on the
thermometer. If you heat the water too much, wait until the temperature drops to 100°F. These cups hold
the lukewarm water.
3. Heat the last cup of water in the microwave until it reaches 212°F. This cup holds the boiling water.
Now line up the five glasses and label them A, B, C, D, and E. Then put the following contents in each glass:
t For
re
ments
Glass
A
B
Contents
1 cup lukewarm water
1 cup lukewarm water and 1 tablespoon sugar
1 cup boiling water and 1 tablespoon sugar
1 cup ice-cold water and 1 tablespoon sugar
1 cup lukewarm water and 1 tablespoon sugar (this one will be covered with plastic wrap)
C С
D
E
Use the spoon to stir the contents in glasses B, C, D, and E until the sugar dissolves. Then immediately add a
packet of yeast to each glass. Wash the spoon and stir in the yeast. Cover the top of glass E tightly with plastic
wrap.
Wait 15 minutes. Then measure the foam level in each glass in centimeters, as shown in the image.
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Biology, 22.06.2019 01:00, nikoidurrant
Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.
Answers: 1
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Course Activity: Aerobic and Anaerobic Respiration
10 prepare for the experiment, follow these step...
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