IB Biology Topic B1.2.6 Chemical Diversity in the R-groups of Amino Acids Revision Notes (HL)

IB Biology Topic B1.2.6 Chemical Diversity in the R-groups of Amino Acids Revision Notes (HL) | RevisionDojo

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R-Groups: The Source of Chemical Diversity in Amino Acids

All 20 amino acids share the same backbone: a central carbon bonded to an amino group, a carboxyl group, and a hydrogen atom.
The fourth bond attaches to the R-group (side chain), which is different for each amino acid.
The R-group sets the amino acid's chemical properties, so it decides how the amino acid behaves in a protein.

Non-Polar R-Groups: Hydrophobic and Water-Repelling

Some R-groups are made mainly of carbon and hydrogen, making them non-polar and hydrophobic.
1. They do not form hydrogen bonds with water.
2. Examples include valine, leucine, and isoleucine.

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R-Groups: The Source of Chemical Diversity in Amino Acids

All 20 amino acids share the same backbone: a central carbon bonded to an amino group, a carboxyl group, and a hydrogen atom.
The fourth bond attaches to the R-group (side chain), which is different for each amino acid.
The R-group sets the amino acid's chemical properties, so it decides how the amino acid behaves in a protein.

Non-Polar R-Groups: Hydrophobic and Water-Repelling

Some R-groups are made mainly of carbon and hydrogen, making them non-polar and hydrophobic.
1. They do not form hydrogen bonds with water.
2. Examples include valine, leucine, and isoleucine.

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A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

IB Biology Topic B1.2.6: Chemical Diversity in the R-groups of Amino Acids Notes

R-Groups: The Source of Chemical Diversity in Amino Acids

Non-Polar R-Groups: Hydrophobic and Water-Repelling

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R-Groups: The Source of Chemical Diversity in Amino Acids

Non-Polar R-Groups: Hydrophobic and Water-Repelling

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

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A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics