Bio

Hey! I am doing a biology lab in which we take liver and sand and place it in a test tube, to see it if it will react with hydrogen peroxide. One of the test tubes just has sand in it, and no reaction occurs. This is because the sand acts as a control and is inorganic meaning it won't react with the enzymes in the liver. My question, what exactly does it mean that the sand is a control? Thanks

This is my answer: the control means that it controls enzyme activity (but I am not sure)

Thanks !

Also, how does one tell if a catalyst is inorganic or organic

  1. 👍
  2. 👎
  3. 👁
  1. The purpose of your experiment is to show that certain reactions are speeded up by using a catalyst (in this case H2O2). These catalysts only work when they act on certain materials.

    That's why you are using sand to show that the hydrogen peroxide doesn't just react with anything it touches, it's material specific.

    Catalysts use a so called key-lock mechanism. Molecules with a specific shape can fit on these catalysts and use the catalyst as a "base of operations" on which they can interact more easily with other molecules.

    A control is just a material to show that a certain material only reacts with specific materials.

    To answer your second question:
    Organic materials contain Carbon(C) and mostly have a chainlike structure, so if your catalyst contains carbon, it is most likely an organic catalyst

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. ART Check

    How would a visual effects designer working on an animated movie with human characters best use knowledge of biology? Knowledge of biology can help the designer to create accurate human features.**** Knowledge of biology can help

  2. Biology

    Is 9th grade biology hard? Is it interesting...?? I love life science but I just wondering if 9th grade biology hard??? I'm taking biology next year.

  3. science

    A truck whose bed is 2.5m long, 1.5m wide,and 1m high delivering sand fro a sand-sculpture competition. How many trips must the truck make to deliver 7 cubic meters of sand?

  4. science

    A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to separate out the sand and salt? distillation to collect the sand and filtration to collect the salt

  1. Math

    A trough contains a certain amount of sand. After Jamie used it to fill a 2.4-kilogram bag, a 650-gram bowl, and a 3-kilogram,125-gram pail, she realized that she had a kilogram of sand left in the trough. How much sand was in the

  2. Calculus 1

    sand is being poured onto the ground forming a conical pile whose height equals 1/4 of the diameter of the base. The sand is falling at a rate of 20cm^3/sec. How fast is the height of the sand pile increasing when it is 3cm high?

  3. Biology

    Among humans, increased interest in food intake normally occurs _____. only after the production of glucose in the liver can no longer meet metabolic needs when fewer calories are taken in than are expended, but only after the

  4. Statistics

    In your biology class, your final grade is based on several things: a lab score, score on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 25% of

  1. Statistics

    In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 15% of

  2. PLEASE RESPOND!!

    Question: hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the website :(,

  3. chemistry

    a student tried to separate a mixture of sand and red-colored water using a suction filtration apparatus. From a mixture of 10.0g of sand and 90.0g of water, the student recovered 9.5g of sand. what was the percent recovery of

  4. Science

    A truck whose bed is 2.5m long 1.5 m wide and 1.0 m high is delivering sand for a sand sculpture competition. About how many trips must the truck make to deliver 7 m3 if sand

You can view more similar questions or ask a new question.