HURRY 80 POINTS!!
Enzymes
In this activity, you will follow Demetri, a fellow biology studen...
Biology, 30.11.2021 23:30 87haymaker
HURRY 80 POINTS!!
Enzymes
In this activity, you will follow Demetri, a fellow biology student, as he tests the effects of the lactase enzyme in different conditions and on different solutions.
To begin the experiment, Demetri gathered these materials:
Materials
6 test tubes
safety goggles
3 400-mL beakers
1 microwaveable container
100-mL graduated cylinder
oven mitts
10-mL graduated cylinder
3 tablespoons sugar
a stirrer
75 mL milk
glucose test strips
250 mL water
2 lactase pills
masking tape
a pen
test tube rack
Demetri will use the materials to create the following six solutions:
milk (lactose) in water
milk (lactose) and lactase enzyme in water
milk (lactose) and lactase enzyme in water, heated to boiling
sugar (sucrose) in water
sugar (sucrose) and lactase enzyme in water
sugar (sucrose) and lactase enzyme in water, heated to boiling
Each solution will be made in a test tube. Demetri will insert a glucose test strip into each solution to test for the presence of glucose. The test strip will change color if glucose is present in the solution, as indicated by the following scale.
Part A: Hypothesis and Data Collection
Question 1
Look at these molecular structures. ( Look at images provided below )
Use the molecular structures to predict which of the six solutions will test positive for glucose. Write your prediction in the answer space. Provide the reasoning behind your prediction.
Answers: 1
Biology, 21.06.2019 22:00
What is thought to have caused the mass extinction at the end of the cretaceous period?
Answers: 1
Biology, 22.06.2019 00:10
Asap what occurs after cytokinesis is completed at the end of meiosis 1?
Answers: 1
Biology, 22.06.2019 02:00
Which units ate used to measure both velocity and speed? check all that apply
Answers: 1
Biology, 22.06.2019 09:30
Did the vinegar diffuse all the way to the center of any of the cubes? if so, which ones? what does this tell you about surface area-to-volume ratio and the diffusion rate?
Answers: 1
Mathematics, 29.01.2021 23:40
English, 29.01.2021 23:40
English, 29.01.2021 23:40
Mathematics, 29.01.2021 23:40
Mathematics, 29.01.2021 23:40
Mathematics, 29.01.2021 23:40
Mathematics, 29.01.2021 23:40
Mathematics, 29.01.2021 23:40
English, 29.01.2021 23:40
Social Studies, 29.01.2021 23:40
English, 29.01.2021 23:40