To test for protein, you added Biuret solution and

Biology

2 answers:

BartSMP [9]3 years ago

8 0

Answer:

The water should not be pink/purple because water should test negative for protein.

The water should actually have turned blue, because Biuret solution is blue.

Someone may have mislabeled the test tube with water.

The water may have been contaminated with a protein.

Explanation:

OLEGan [10]3 years ago

7 0

Answer:

Water sample showing pink/purple color is an error.

Explanation:

Biuret is a blue color reagent that changes its color to pink/purple whenever it detects protein in a sample. Water don't contain proteins so it should not show pink/purple color instead it should maintain the blue color. Food items generally contain proteins so it show pink/purple color but it showed blue color.

Error might have caused by wrong marking of the samples, test tube marked with Water might contain a mystery food while Mystery food tube might contain water.

You might be interested in

In Activity A, you explored photosynthesis in a pond. The dissolved oxygen in a pond is

Anon25 [30]

Answer:

Photons

Explanation:

Photons are the only source of energy for photosynthesis. Photons are absorbed by chlorophyll molecules within Photosystems I and II (and antennae complexes), generating higher-energy ‘excited’ states of the photosystems which can carry out energetically costly chemical reactions.

5 0

3 years ago

Read 2 more answers

Question

vlabodo [156]

1 2 4 5 6 3

In this order because I said so and I have done it before and 20 words

7 0

3 years ago

Which symptoms are common to both lymphoma

rusak2 [61]

The answer is C & E
Fatigue as well as Enlarged lymph nodes

5 0