In a pre-lab for nutrient food testing , I was assigned to answer these questions, but I have no idea what they are talking about. And no, we have not discusses the answers in class. Here are the questions: Answer the following questions:
1. What is a positive standard?
2. What is an indicator?
3. What are the standards for this lab?
4. What are the indicators for this lab?
5. For part one how many tests will we run?
6. What is the negative standard for each test?
7. Why do we have a negative standard?
8. Students will have to heat one test to get the result. Which nutrient test will that be?
I have already emailed 5 of my classmates and my teacher, but no one has answered me back.
If you don't know the answers, can you just give me a link to somewhere I could find them?
Thank you so much!
Have you checked your text?
It has nothing to do with my textbook- it is just a lab my teacher is doing with us. Don't worry, I wouldn't ask the questions if I hadn't already checked my book. I am very sorry- I just don't know what to do- no one is answering my emails!
Again, thank you so much!
I understand that you're looking for answers to your pre-lab questions, and it's great that you've reached out to your classmates and teacher. Since you haven't received a response yet, I'll help explain how you can find the answers on your own.
1. What is a positive standard?
A positive standard is a known substance or sample that contains the target nutrient or component being tested. It serves as a reference point, typically showing a positive reaction in the test.
To find the answer, you can try searching for "positive standard definition in nutrient food testing."
2. What is an indicator?
An indicator is a substance or compound that changes color or produces a detectable signal when certain conditions or substances are present. In nutrient food testing, indicators are used to identify the presence or absence of specific nutrients or components.
A search for "indicator definition in nutrient food testing" should provide you with more information.
3. What are the standards for this lab?
The standards for the lab usually refer to the specific criteria, guidelines, or reference values used to determine the presence or concentration of nutrients or components in food samples. These standards can vary depending on the specific testing method or regulations being followed.
To find the standards for your lab, try searching for "standards in nutrient food testing lab" along with any specific keywords related to your lab.
4. What are the indicators for this lab?
The indicators used in the lab will depend on the specific nutrients or components being tested for. Different nutrients may require different indicators to detect their presence or absence.
To find the indicators used in your lab, you can search for "indicators in nutrient food testing lab" along with any relevant keywords.
5. For part one, how many tests will we run?
The number of tests conducted in part one of the lab will depend on the specific instructions provided. It is important to refer to the lab instructions or any other materials given by your teacher for this information.
6. What is the negative standard for each test?
The negative standard in each test refers to a known substance or sample that should not show a positive reaction or contain the nutrient or component being tested. It acts as a control to confirm the specificity of the test.
To find the negative standard for each test in your lab, refer to the lab instructions or any provided materials.
7. Why do we have a negative standard?
The negative standard is used to rule out false positive results and ensure that the test is detecting the targeted nutrient or component accurately. It allows for comparison and validation of positive reactions in other samples.
To understand more about the importance of negative standards, you can search for "importance of negative control in nutrient food testing."
8. Which nutrient test requires heating to get the result?
The nutrient test that requires heating would depend on the specific instructions given in your lab. The lab procedure or any provided materials should mention which test requires heating as part of the process.
If you're unable to find the information you need using the suggested search terms, you can try different variations or refer to textbooks, online resources, or scientific journals related to nutrient food testing.
I hope these suggestions help you find the answers to your questions!