Amino Acids and Protein Tests

Amino Acids and Protein Tests

Assessment

Interactive Video

Biology

10th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers qualitative tests for proteins, starting with an introduction to proteins and amino acids. It explains the classification of amino acids into essential and non-essential categories. The video also discusses the representation of protein structures using letter codes. Various tests for detecting proteins and amino acids are detailed, including the Biuret, Ninhydrin, Xanthoproteic, Millon's, Sakaguchi, Hopkins-Cole, and Sulfur Reaction tests. Each test's purpose, procedure, and expected results are explained, providing a comprehensive understanding of protein analysis.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the building blocks of proteins?

Monosaccharides

Nucleotides

Amino acids

Fatty acids

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an essential amino acid?

Alanine

Arginine

Histidine

Glycine

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why were one-letter codes for amino acids developed?

To simplify chemical reactions

To improve protein synthesis

To enhance dietary absorption

To reduce file sizes in early computers

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is formed when two amino acids undergo a condensation reaction?

Tripeptide

Dipeptide

Monopeptide

Polypeptide

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color change indicates the presence of proteins in the Biuret test?

Blue to yellow

Blue to red

Blue to violet

Blue to green

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which test is used to detect free amino acids in proteins?

Biuret test

Ninhydrin test

Millon's test

Xanthoproteic test

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a yellow color in the Xanthoproteic test indicate?

Presence of cysteine

Presence of arginine

Presence of tyrosine and tryptophan

Presence of sulfur

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