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THE VISUAL LEARNING STUDIO
See the idea. Understand the connection.
35 visual explanations across 29 chapters, with topic maps throughout the library.
The chapter index will grow as additional notes are prepared. Chapters shown here are a learning collection, not a claim that the entire exam syllabus is complete.
SEE IT. CONNECT IT. EXPLAIN IT.
Understand the chapter visually
1 visual explanation · Study the connections, then test yourself.
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COMPARE & CONNECT
From building blocks to biological polymers
1
Proteins
Amino acids join through peptide bonds; folding helps determine function.
2
Nucleic acids
Nucleotides form DNA and RNA.
3
Polysaccharides
Monosaccharides join through glycosidic linkages.
4
Lipids
A diverse group; they are not generally repeating-monomer polymers in the same way.
The connection Structure and bonding explain biological function.
Exam trap Not every biological macromolecule is a polymer built from a repeating monomer.
What bond joins amino acids in a polypeptide?
A peptide bond joins the amino and carboxyl groups of successive amino acids.
Study the expanded notes and the credited detailed textbook lessons. The current chapter index covers core topics; it is not a claim of exhaustive coverage of every examination syllabus. Check the official syllabus and primary references.
Biomolecules — lesson overview
Molecular classes
Biological systems contain water, ions and diverse organic molecules, including carbohydrates, proteins, lipids and nucleic acids.
A molecule’s structure influences its function; classifying something as organic alone does not explain its biological role.
Large biological structures can be assembled through different interactions; lipids should not be indiscriminately described as one uniform kind of long-chain polymer.
Proteins and enzymes
Proteins are built from amino-acid residues linked by peptide bonds and folded into functional structures.
Enzymes increase reaction rates by lowering the activation barrier; they do not alter the overall equilibrium constant of a reaction.
Temperature, pH, substrate availability and inhibitors can affect activity. Denaturation changes functional structure and is distinct from changing an organism’s DNA sequence.
Information molecules
DNA and RNA are nucleic acids made of nucleotide units. A nucleotide contains a sugar, phosphate and nitrogenous base.
Sequence carries information, while replication and gene expression involve molecular machinery and regulation.
A protein’s amino-acid sequence and folding are connected but not identical levels of description; environment and cellular conditions also matter.
