{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

Please don't start this until we discuss it in class.

Be sure to carefully read the whole lab before answering these pre-lab questions. The lab is posted on GoogleClassroom. This will be graded on correctness as a homework grade.

1

What is an indicator (choose the best answer)?

Something that indicates whether there is a substance present

Something that indicates whether there is a substance present by changing color

Something that indicates if your answer is correct

Something that indicates if your answer is wrong

1.5

Which of the following are the indicators in this lab and what do they show (select all that apply)?

The paper bag becomes translucent in the presence of lipids

The glucose test strips turn yellow in the presence of glucose

The glucose test strips turn green in the presence of glucose

The KI turns brown in the presence of starch

The KI turns dark purple in the presence of starch

The Biuret reagent turns blue/purple in the presence of proteins.

1.5

Which of the following is a test in this lab that doesn't involve an indicator (select all that apply)?

The paper bag becomes translucent in the presence of lipids

The glucose test strips turn yellow in the presence of glucose

The glucose test strips turn green in the presence of glucose

The KI turns brown in the presence of starch

The KI turns dark purple in the presence of starch

1.5

What is the purpose of using distilled water (a solution that doesn't have any of the biomolecules from this lab) as one of your test substances?

1.5

How will you know what droppers to use each for each beaker? Why is it important that you follow this system and don’t use the wrong droppers for a certain solution?

0.5

This picture is of a (if you need to Google this feel free!) ...

Beaker

Dropper

Test tube

0.5

This picture is of a ...

Beaker

Dropper

Test tube

0.5

How many droppers full of the known and unknown solutions are you adding to each cup (not including the mayo)?

1

Every group is completing parts A and B.

Nokorɛ

Ɛnyɛ ampa

1

Every group is completing parts C and D.

Nokorɛ

Ɛnyɛ ampa

0.5

If you are completing the starch test, how much KI are you adding to each cup?

3-4 droppers ful

3-4 drops

The lab doesn't say

1

Biomolecules Pre-Lab

Biomolecules Pre-Lab

What is an indicator (choose the best answer)?

Which of the following are the indicators in this lab and what do they show (select all that apply)?

Which of the following is a test in this lab that doesn't involve an indicator (select all that apply)?

What is the purpose of using distilled water (a solution that doesn't have any of the biomolecules from this lab) as one of your test substances?

How will you know what droppers to use each for each beaker? Why is it important that you follow this system and don’t use the wrong droppers for a certain solution?

This picture is of a (if you need to Google this feel free!) ...

This picture is of a ...

How many droppers full of the known and unknown solutions are you adding to each cup (not including the mayo)?

Every group is completing parts A and B.

Every group is completing parts C and D.

If you are completing the starch test, how much KI are you adding to each cup?

What are some things you need to do to clean up at the end of the lab (select all that apply)?

What is an indicator (choose the best answer)?

Which of the following are the indicators in this lab and what do they show (select all that apply)?

Which of the following is a test in this lab that doesn't involve an indicator (select all that apply)?

What is the purpose of using distilled water (a solution that doesn't have any of the biomolecules from this lab) as one of your test substances?

How will you know what droppers to use each for each beaker? Why is it important that you follow this system and don’t use the wrong droppers for a certain solution?

This picture is of a (if you need to Google this feel free!) ...

This picture is of a ...

How many droppers full of the known and unknown solutions are you adding to each cup (not including the mayo)?

Every group is completing parts A and B.

Every group is completing parts C and D.

If you are completing the starch test, how much KI are you adding to each cup?

What are some things you need to do to clean up at the end of the lab (select all that apply)?