1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antiseptic1488 [7]
3 years ago
12

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
Over a period of time, the beetles once again reached carrying capacity and sustained it for many years. However, pollution from
Nookie1986 [14]

Answer:

As the beetles have a uniform distribution, at a carrying capacity of 14,600 beetles, there are about 128 beetles per hectare. Because 55 hectares are now unlivable, the carrying capacity would decrease by about 7,040 individuals (55 × 128).

Therefore, the carrying capacity of the ecosystem will be (old carrying capacity – decrease in carrying capacity) = (14,600 – 7,040) = 7,560 beetles.

Explanation:

answer from Plato

4 0
3 years ago
Read 2 more answers
Double helix describes the structure of a molecule of
MissTica
Double Helix describes the structure molecule of
E) DNA
7 0
3 years ago
Understanding cell division :<br><br><br><br> In the interphase 'S' means synthesis or _______?
kherson [118]
I believe the answer is <span>replication of DNA</span>
6 0
3 years ago
What is antibiotic resistance? How does it come about? What
Butoxors [25]

Answer:

Antimicrobial resistance occurs when microbes evolve mechanisms that protect them from the effects of antimicrobials. It's mainly caused by the overuse of antimicrobials. This leads to microbes either evolving a defense against drugs used to treat them, or certain strains of microbes that have a natural resistance to antimicrobials becoming much more prevalent than the ones that are easily defeated with medication.

The best ways to prevent antibiotic resistance are:

  • For every infection, it is recommended to order cultures and antibiograms before starting the therapy
  • Making sure that indication, dose and duration of treatment are respected according to the guidelines
8 0
3 years ago
What is. . .
Gwar [14]

Answer:

chemical reaction/ chemical change

Explanation:

8 0
3 years ago
Other questions:
  • A _____ is a tiny space between the axon of one neuron and the dendrites or cell body of another neuron. glial cell reticular fo
    7·1 answer
  • Which ratio is equivalent to 18/24 ?<br> a. B.<br> c. D.
    15·1 answer
  • Your physical traits are linked to your what?
    14·2 answers
  • Plz Help!
    7·2 answers
  • DNA located in the cell during Interphase is in the form of _____ (A. Chromatin (B. Chromosomes
    13·2 answers
  • Hello can you help me please thanks!
    9·2 answers
  • In module 1 you learned about homeostasis. what are four ways the skin helps an individual maintain thermoregulation? make sure
    15·2 answers
  • HELP PLSSSSS PLS PLS PLS
    6·1 answer
  • Which of the following is a way humans use trees? a. paper b. food c. wood d. all of the above
    7·2 answers
  • Which of the following is a function of the cell membrane?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!