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
nikklg [1K]
3 years ago
7

The molecule pictured below produced a blue color when tested with Benedict’s reagent, a yellow color when tested with IKI, and

a violet color when tested with Biuret reagent. Based on the structure shown below and these chemical results, what kind of biomolecule is this? the molecule a blue color with benedicts reagent.no color change that given molecule is not a simple carbohydrate
Biology
1 answer:
True [87]3 years ago
8 0

Answer:

The molecule is a protein

Explanation:

When the molecule was tested with benedict's solution and a blue color was formed, that actually meant there was no colour change because the colour of benedict's solution is blue. Benedict's solution is used to test for the presence of reducing sugar, which changes it's colour to green, orange, yellow or even red; <u>the fact that there was no colour change shows the molecule is not a reducing sugar</u>.

Yellow colour when tested with IKI (Iodine-potassium iodide) also shows no colour change. IKI reagent is used to determine the presence of starch, which gives off a dark-blue colour if starch is present. Hence, <u>absence of this dark-blue colour or observation of a yellow/orange colour shows the molecules is not starch</u>.

Biuret reagent is used to test for peptide bonds in a molecule. In the presence of a peptide bond, the biuret reagent changes colour from blue to violet. The amino acids in proteins are held together by peptide bond, hence the biuret colour change shows that the biomolecule is a protein.

You might be interested in
Someone please help me, I’ve done this like 10 times.
vivado [14]
The 2nd goes to first 1st goes to second 3rd goes last 5th goes 3rd
7 0
3 years ago
Read 2 more answers
Why does the transfer of carbon and oxygen take place
jok3333 [9.3K]
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelope them.
3 0
3 years ago
Read 2 more answers
All the following statements about destruction of cyclins are true EXCEPT: ubiquitin targets Cdks. destruction is carried out by
ZanzabumX [31]

Answer:

ubiquitin targets CDKs

Explanation:

Cyclins are named such because they undergo a constant cycle of synthesis and degradation during cell division. When cyclins are synthesized, they act as an activating protein and bind to Cdks forming a cyclin-Cdk complex. This complex then acts as a signal to the cell to pass to the next cell cycle phase.

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

6 0
2 years ago
Read 2 more answers
Which conclusion is best supported by Daniels observations and discoveries
Pani-rosa [81]
Since there are no choices, it will be difficult to answer your question.
Let's say these are the choices:

A. The liquid is a pure substance because it is colorless.
B. The liquid is a mixture because its temperature rises.
C. The liquid is a pure substance because it remains liquid when cold.
D. The liquid is a mixture because it has a gas dissolved in a liquid. 

your answer is D. The liquid is a mixture because it has a gas dissolved in a liquid. 
3 0
2 years ago
Read 2 more answers
An animals genetic makeup can influence its behavior true or false
lisov135 [29]
Yes it can. So yes an animals gebetic makeup can affect its behavior
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is an advantage and disadvantage to using lithium, ion batteries
    12·1 answer
  • Galaxies whose shape seems to follow no set pattern are classified as
    11·2 answers
  • Photosynthesis and cellular respiration review
    7·1 answer
  • Các enzyme xúc tác phản ứng thường có cấu trúc bậc mấy? Tại sao?
    14·1 answer
  • When these clouds break apart, they let out buckets of rain or snow
    12·2 answers
  • In a dihybrid cross, if the genotypes of one the parents is BbTT, what genes would you put on the outside of the Punnett square?
    8·2 answers
  • Doubtnut User Invited you to their study group Doubtnut buddy group. Accept the invite to study together. https://doubtnut.app.l
    15·1 answer
  • Active transport is different from simple diffusion because active transport
    15·1 answer
  • What function do chloroplasts perform?
    10·1 answer
  • Sulfa drugs work on select one: a. nucleic acid biosynthesis. b. ribosome biosynthesis. c. peptidoglycan biosynthesis. d. folic
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!