Question

Gelatin is a protein found in bones and skin of animals. To investigate the ability of enzymes to digest gelatin, students used camera film, which contains gelatin, and appears black but turns clear when gelatin is broken down. They incubated film in tubes of trypsin, lipase, and amylase. and recorded the time it took for enzymes to digest the gelatin, turning the film from black to clear.
Which of the following would be the most appropriate control for this experiment?
a. A test tube containing no camera film
b. A test tube containing only a piece of exposed camera film
c. A test tube containing a piece of exposed camera film submerged in water
d. A test tube containing a piece of exposed camera film and all three enzyme solutions

Answer 1

The following which would be the most appropriate control for this experiment which involves investigation of the ability of enzymes to digest gelatin using camera film is a test tube containing only a piece of exposed camera film and is therefore denoted as option B.

What is a Control group?

This is referred to as the standard to which comparisons are made in an experiment and it is used to establish causality by isolating the effect of an independent variable.

The group in this scenario who do not receive the experimental treatment is the test tube containing containing only a piece of exposed camera film without the presence of the enzymes which is different and usually separated from the rest and is therefore the reason why it was chosen as the correct choice.

Read more about Control group here https://brainly.com/question/10971433

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