Essential Amino Acids and Their Functions

Essential Amino Acids and Their Functions

Assessment

Interactive Video

Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

This video tutorial explains essential amino acids, which cannot be synthesized by the body and must be obtained through diet. It lists and describes each essential amino acid, including phenylalanine, valine, tryptophan, threonine, isoleucine, methionine, histidine, arginine, leucine, and lysine. A mnemonic device, 'private Tim Hall,' is introduced to aid memorization. The video also discusses conditionally essential amino acids like cysteine and tyrosine, which become essential under certain conditions. Additionally, it highlights amino acids that are often deficient in plant-based diets, providing important information for vegetarians and vegans.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary reason essential amino acids must be obtained through diet?

They are not found in any food sources.

They are only needed in small amounts.

They cannot be synthesized de novo in the body.

They are synthesized in the body.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which amino acid is characterized by a benzene ring attached to an alanine backbone?

Leucine

Tryptophan

Phenylalanine

Valine

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which amino acid is known for having a branched chain side chain in the form of a 'V'?

Histidine

Methionine

Isoleucine

Valine

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mnemonic device is suggested for remembering essential amino acids?

Protein Power

Amino Chain

Essential Amino List

Private Tim Hall

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Under what condition does arginine become essential?

During childhood

During adulthood

When consuming plant-based diets

When on a high-protein diet

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cysteine becomes essential when there is a lack of which amino acid?

Tryptophan

Lysine

Methionine

Phenylalanine

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tyrosine becomes essential when there is a deficiency of which amino acid?

Leucine

Phenylalanine

Histidine

Valine

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