Which reagent is used to test for protein?

Answers

Answer 1
Answer:

Answer:

Biuret reagent is the correct answer.

Explanation:

Biuret reagent is used to test the presence of the protein in a solution.

The biuret solution contains

  • Potassium hydroxide solution.
  • Hydrated Copper sulfate.
  • Potassium sodium tartrate.

Biuret reagent is a solution that is blue in color and when it reacts with protein the color gets a change to pink-purple due presence of several peptide bonds and when there is no protein present in the solution the color remains blue.

The biuret reaction takes place when the copper II ions placed in the solution as a cupric sulfate gets reduce to copper I ions due to the presence of peptide bonds and the color change is observed from blue to violet.

Answer 2
Answer:

The biuret reagent is used to test for proteins. A biuret test, also known as a peptide bond test, is a chemical test used to measure the number of peptide bonds present in an analyte.

Biuret reagent consists of NaOH (sodium hydroxide) and hydrochlorofluorocarbons (sulfate) and potassium sodium tartrate. The tartrate is added to the chelate to stabilize the cupric ions.

When pure, the reagent is a pale blue color. However, when the reagent is mixed with protein, the reaction results in a light purple color. The deep blue/purple color is caused by a copper ion complex with a protein amide group.

To learn more about the biuret reagent, refer to the link:

brainly.com/question/4596250

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Information about traits is stored in the cell nucleus in a molecule called ______.

Answers

Answer:

Information about trait is stored in the DNA

Explanation:

What is DNA?

The acronym DNA stands for (Deoxy Ribonucleic Acid) . The genetic code which determines the behavioral pattern of an organism . Each nucleotide contains a sugar and a phosphate molecule, which make up the 'backbone' of DNA.

DNA because it is passed from a parent to a child during reproduction. it is made up of genes

A motor neuron and all of the skeletal muscle cells it stimulates is called a

Answers

The basic function of the nervous system is to send the signal from one organ to other organs with the help of neurons.

In this system, It includes:-

  • Sensory organ
  • Sensory neuron
  • CNS
  • Motor neuron
  • Target organ

All these unit help to transfer the singal from sensory organ to target organ. To perform an action, stimulus is required.

The unit in which Motor neuron and all of the skeletal muscle cells recives the stimulates is called a motar unit.

For more information, refer to the link:-

brainly.com/question/17776540

A motor neuron and all of the skeletal muscle fibers it stimulates is called a motor unit.

A type of cell division that results in two daughter cells that are exactly the same as the original cell is _____? Cell regeneration?
Diffusion?
Osmosis?
Or Mitosis?

Answers

Answer:

Mitosis

Explanation:

Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells

The model below shows the mRNA sequenceAUG GGG UUU ACA UAG
Use the genetic code table to predict what amino
acids will be in the protein when this mRNA is
translated.

Answers

Answer:

AUG is MET (starting point)

GGG is GLY

UUU is PHE

ACA is THR

and lastly

UAG is stop (there's no code for this one so you stop)

Explanation:

I hope this the right answers for you.

The school has 800 students with 20 students on the gymnastic team and 10 students on the chess team (including 3 students who are on both teams). How many students in the school are not members of either the gymnastic team or the chess team?

Answers

so first you add both gym and chess members then you minus to tht total amount of students: chess+gym=10+20=30   total students= 800 since the question asks how many people did not participate in either gym or chess so u minus: 800- 30 = 770 
so the answer will be 770 did not participate in both gym and chess
this question seems like its too easy so i might have got it wrong.. but would't you just subtract 20 and 10 from 800 to get 770?

The aorta carries blood _____.to the lungs
to the body
to the heart
from the body

Answers

to the body it is an artery

Answer:

Aorta carries blood to the body

Explanation:

Aorta is an artery!