Carbohydrates
Sugars and sugar polymers used for quick energy, energy storage, and structural support.
Examples: Glucose, starch, glycogen, cellulose
Main clue: Monosaccharides, polysaccharides, or glucose
What Are the Four Macromolecules in AP Biology?
The four major biological macromolecules in AP Biology are carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates provide energy and structure, lipids support membranes and long-term energy storage, proteins perform jobs such as enzymes and transport, and nucleic acids store and transmit genetic information.
AP tip: Do not memorize the four groups as a flat list. For each macromolecule, know its elements, building blocks, structure, function, examples, and common test clues.
AP Biology macromolecules are the large biological molecules cells use to do life's work. The four major groups are carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates often support energy and structure. Lipids support membranes, long-term energy storage, and signaling. Proteins fold into shapes that allow enzymes, transport proteins, receptors, and structural molecules to work. Nucleic acids store and transmit genetic information. For AP Biology, the goal is not just to memorize the four names. The goal is to connect each macromolecule's structure, building blocks, and chemical properties to its biological function.
If you have not reviewed subunits yet, start with monomers and polymers and dehydration synthesis and hydrolysis, then return here to compare all four classes before the deep dives on carbohydrates, lipids, proteins, and nucleic acids.
Why Do Macromolecules Matter in AP Biology?
AP Biology Unit 1 connects chemistry to living systems. Macromolecules are large biological molecules cells use for energy, structure, enzymes, membranes, and genetic information. Students should not just memorize names—the AP exam tests structure-function relationships. Macromolecules connect earlier pages: elements of life, monomers and polymers, and dehydration synthesis and hydrolysis.
AP Biology Unit 1 is called Chemistry of Life because cells are built from molecules. Macromolecules are the large biological molecules that help cells store energy, build structures, speed up reactions, form membranes, and store genetic information.
In AP Biology, macromolecules matter because they connect chemistry to cell function.
The four major macromolecule groups are carbohydrates, lipids, proteins, and nucleic acids. Each group has a different chemical structure and a different biological role. Carbohydrates are often connected to energy and structure. Lipids are connected to membranes, long-term energy storage, and signaling. Proteins are connected to enzymes, transport, movement, structure, and communication. Nucleic acids are connected to DNA, RNA, and genetic information.
The key is not just memorizing the four names. AP Biology questions often ask why a molecule's structure helps it do its job. That means you should know the elements, building blocks, bonds, examples, and functions of each macromolecule group. Exam questions often trace: elements → monomers → polymer or molecule → structure → function → cell process.
Strong students also connect this topic back to water properties. Water participates in building and breaking polymers, which is one reason aqueous chemistry is central to life.
The Four Macromolecules at a Glance
Use these four cards as a quick mental map before you open the full comparison chart. Each card lists examples and the vocabulary AP stems love to reuse.
Lipids
Mostly hydrophobic molecules used for long-term energy storage, membranes, and signaling.
Examples: Triglycerides, phospholipids, steroids
Main clue: Hydrocarbon chains, nonpolar regions, membranes
Proteins
Amino acid-based molecules that fold into shapes and perform many cell jobs.
Examples: Enzymes, hemoglobin, membrane proteins, collagen
Main clue: Amino acids, polypeptides, folding, enzymes
Nucleic Acids
Nucleotide-based molecules that store and transmit genetic information.
Examples: DNA and RNA
Main clue: Nucleotides, nitrogenous bases, sugar-phosphate backbone
AP Biology Macromolecules Chart
When a question gives you a molecule, ask: What elements are present? What building blocks are involved? What structure is described? What function is being tested?
| Macromolecule | Main Elements | Building Blocks | Polymer / Larger Form | Main Functions | AP Examples | Test Clues |
|---|---|---|---|---|---|---|
| Carbohydrates | C, H, O | Monosaccharides | Disaccharides and polysaccharides | Quick energy, energy storage, structure | Glucose, starch, glycogen, cellulose | Sugar, glucose, polysaccharide, starch, cellulose, glycogen |
| Lipids | C, H, O; sometimes P | Fatty acids and glycerol for many lipids; not true repeating monomers | Triglycerides, phospholipids, steroids | Long-term energy storage, membranes, insulation, signaling | Fats, oils, phospholipids, steroid hormones | Hydrophobic, nonpolar, hydrocarbon chain, membrane, bilayer, hormone |
| Proteins | C, H, O, N; sometimes S | Amino acids | Polypeptides and folded proteins | Enzymes, transport, structure, movement, signaling, receptors | Amylase, hemoglobin, collagen, membrane channels | Amino acid, peptide bond, folding, enzyme, active site, denaturation |
| Nucleic Acids | C, H, O, N, P | Nucleotides | DNA and RNA | Store and transmit genetic information | DNA, RNA | Nucleotide, nitrogenous base, sugar-phosphate backbone, genetic code |
This chart is one of the most important AP Biology Unit 1 study tools. When a question gives you a molecule, ask: What elements are present? What building blocks are involved? What structure is described? What function is being tested?
How Are Carbohydrates Explained for AP Biology?
Carbohydrates are made mainly of carbon, hydrogen, and oxygen. Many carbohydrates are built from monosaccharides. Monosaccharides include glucose. Larger carbohydrates include disaccharides and polysaccharides. Carbohydrates are used for quick energy, storage, and structure. Starch and glycogen store energy. Cellulose provides structural support in plant cell walls.
Carbohydrates are often the easiest macromolecule group to recognize because they are built around sugars. A monosaccharide is a simple sugar. Glucose is one of the most important examples. Cells can use glucose for energy, and glucose units can be joined into larger carbohydrates through dehydration synthesis.
Polysaccharides are carbohydrate polymers made of many monosaccharides. Starch stores energy in plants. Glycogen stores energy in animals. Cellulose provides structural support in plant cell walls. A common AP Biology theme is that structure affects function. Starch, glycogen, and cellulose can all involve glucose, but they do not all do the same job. Their bonding and arrangement affect how cells use them.
AP tip: If a question mentions glucose, starch, glycogen, cellulose, or polysaccharides, think carbohydrates.
Continue to the carbohydrates deep dive for glycosidic bonds, branching patterns, and more AP-style examples.
How Are Lipids Explained for AP Biology?
Lipids are mostly hydrophobic. They are rich in carbon and hydrogen. Lipids are not usually true polymers. Common examples include triglycerides, phospholipids, and steroids. Triglycerides store long-term energy. Phospholipids form cell membranes. Steroids can act as hormones. Phospholipids are amphipathic: hydrophilic head and hydrophobic tails.
Lipids are the macromolecule group that causes the most confusion because they do not follow the monomer-polymer pattern as neatly as carbohydrates, proteins, and nucleic acids. Lipids are grouped mainly because they are mostly hydrophobic. They tend to contain many carbon-hydrogen bonds and do not mix well with water.
The most important AP Biology lipid example is the phospholipid. A phospholipid has a hydrophilic head and hydrophobic tails. This structure helps explain why phospholipids form bilayers in water—a perfect structure-function example that connects Unit 1 to Unit 2 membranes.
AP tip: If a question mentions hydrophobic, nonpolar, phospholipid bilayer, fatty acid tails, or steroid hormones, think lipids.
Open the lipids guide for triglyceride formation, saturation, and membrane diagrams.
How Are Proteins Explained for AP Biology?
Proteins are built from amino acids. Amino acids form polypeptides. Polypeptides fold into functional proteins. Protein shape determines function. Proteins can be enzymes, transport proteins, receptors, structural proteins, and signaling molecules. Denaturation can disrupt protein function. Primary, secondary, tertiary, and quaternary structure matter for folding. Sulfur can help stabilize some protein structures through disulfide bonds.
Proteins are among the most important macromolecules in AP Biology because they do so many cell jobs. Amino acids join to form polypeptides, and polypeptides fold into specific shapes. An enzyme's shape allows it to bind a substrate. A transport protein's shape affects what can cross a membrane. When a protein loses its shape, it can lose its function—this is called denaturation.
AP Biology often tests proteins through structure-function reasoning. Do not just say proteins are important. Explain that amino acid sequence affects folding, folding affects shape, and shape affects function.
AP tip: If a question mentions amino acids, peptide bonds, folding, active sites, enzymes, denaturation, or shape-specific function, think proteins.
Study sequence and folding in the proteins deep dive.
How Are Nucleic Acids Explained for AP Biology?
Nucleic acids are built from nucleotides. Nucleotides contain a sugar, phosphate group, and nitrogenous base. DNA and RNA are nucleic acids. DNA stores genetic information. RNA helps use genetic information to make proteins. Nucleic acids contain C, H, O, N, and P. Phosphodiester bonds connect nucleotides in the sugar-phosphate backbone.
Nucleic acids store and transmit genetic information. Both DNA and RNA are made from nucleotide monomers. DNA stores genetic information. RNA helps use that information, especially when cells build proteins. This topic becomes much deeper in AP Biology Unit 6, but Unit 1 introduces the chemical structure.
Nucleic acids are strong examples of structure-function. The sequence of bases stores information. The sugar-phosphate backbone provides structure. The molecule's organization allows genetic information to be copied, stored, and used.
AP tip: If a question mentions nucleotides, nitrogenous bases, sugar-phosphate backbone, DNA, RNA, or genetic information, think nucleic acids.
Continue to the nucleic acids guide for base pairing and replication previews.
Monomers, Polymers, and the Lipid Exception
Carbohydrates, proteins, and nucleic acids clearly follow monomer-polymer logic. Carbohydrates: monosaccharides → polysaccharides. Proteins: amino acids → polypeptides/proteins. Nucleic acids: nucleotides → DNA/RNA. Lipids are the major exception—large biological molecules but not always true repeating polymers. This is a frequent AP Biology trap.
| Macromolecule | Monomer or Building Block | True Polymer? | Why It Matters |
|---|---|---|---|
| Carbohydrates | Monosaccharides | Often yes | Polysaccharides are sugar polymers. |
| Proteins | Amino acids | Yes | Amino acid sequence affects folding and function. |
| Nucleic Acids | Nucleotides | Yes | Nucleotide sequence stores genetic information. |
| Lipids | Fatty acids, glycerol, other components | Not usually | Lipids are grouped by hydrophobic properties, not a repeating monomer chain. |
AP warning: Do not write that all macromolecules are true polymers. Lipids are the big exception.
Review monomers and polymers if you need the subunit vocabulary before exam day.
What Structure-Function Patterns Does AP Biology Test?
AP Biology rewards answers that connect molecular structure to biological role. Use these patterns when you write FRQs or eliminate MCQ distractors.
| Pattern | Molecule Type | Structure | Function |
|---|---|---|---|
| Glucose polymer branching | Carbohydrate | Branched chains | Energy storage |
| Hydrocarbon chains | Lipid | Nonpolar C-H rich tails | Hydrophobic behavior and energy storage |
| Phospholipid head and tails | Lipid | Hydrophilic head, hydrophobic tails | Membrane bilayer formation |
| Amino acid sequence | Protein | Specific order of amino acids | Folding and function |
| Active site shape | Protein | Specific 3D shape | Enzyme-substrate binding |
| Nucleotide sequence | Nucleic acid | Order of bases | Genetic information |
When you see denaturation, bilayer formation, or base sequence in a prompt, name the macromolecule class first, then explain how structure enables the function.
How Do You Identify Macromolecules in AP Questions?
Look for molecule names, elements, building blocks, function clues, and structural terms. Watch out for the lipid exception. If the question says enzyme, think protein. If it says DNA/RNA, think nucleic acid. If it says bilayer or hydrophobic, think lipid. If it says glucose, starch, glycogen, or cellulose, think carbohydrate.
- Sugar, glucose, starch, glycogen, cellulose → Carbohydrate
- Hydrophobic, fatty acid, phospholipid, steroid, bilayer → Lipid
- Amino acid, peptide bond, enzyme, active site, denaturation → Protein
- Nucleotide, DNA, RNA, nitrogenous base, sugar-phosphate backbone → Nucleic acid
Practice this checklist with the MCQs below—choices shuffle so you cannot memorize letter positions.
What Are Common AP Biology Mistakes About Macromolecules?
Memorizing names without structure-function
Fix: Know how structure helps each molecule do its job—not just the four labels.
Saying all macromolecules are polymers
Fix: Lipids are large biological molecules but not usually true polymers.
Confusing protein and nucleic acid building blocks
Fix: Amino acids build proteins; nucleotides build DNA and RNA.
Forgetting phosphorus in nucleic acids and phospholipids
Fix: Phosphate groups are key in DNA, RNA, ATP, and phospholipids.
Thinking carbs only give quick energy
Fix: Some carbohydrates store energy; others provide structure (cellulose).
Forgetting protein shape
Fix: Protein function depends heavily on folding and 3D shape.
Confusing phospholipids with carbohydrates
Fix: Phospholipids are lipids with hydrophilic heads and hydrophobic tails.
Ignoring AP question clues
Fix: Terms like active site, bilayer, nucleotide, and polysaccharide are strong clues.
Choose the Clue: Which Macromolecule Is It?
Open each card to reveal the answer and why the clue fits. Use these before the macro explorer below.
Clue: Glucose, starch, glycogen, cellulose
Answer: Carbohydrate
These are sugars or sugar polymers.
Clue: Hydrophobic, fatty acid tails, phospholipid bilayer
Answer: Lipid
Lipids are mostly nonpolar and help build membranes.
Clue: Amino acids, peptide bonds, folding
Answer: Protein
Proteins are built from amino acids and fold into functional shapes.
Clue: Nucleotides, DNA, RNA, nitrogenous bases
Answer: Nucleic Acid
Nucleic acids store and transmit genetic information.
Clue: Active site and substrate
Answer: Protein
Enzymes are proteins with specific active sites.
Clue: Long-term energy storage and insulation
Answer: Lipid
Fats store long-term energy.
Clue: Plant cell wall support
Answer: Carbohydrate
Cellulose is a structural polysaccharide.
Clue: Sugar-phosphate backbone
Answer: Nucleic Acid
DNA and RNA have sugar-phosphate backbones.
Explore the Four Macromolecule Types
Tap each type once to open details. Explore all four to enable the finish button sooner.
Carbohydrates
Monosaccharides · polysaccharides · quick energy and structure
Monomer: Monosaccharides (glucose)
Examples: Starch, glycogen, cellulose
AP clue: Sugar, glucose, polysaccharide
Lipids
Hydrophobic · membranes · long-term energy
Building blocks: Fatty acids, glycerol (not true repeating polymers)
Examples: Triglycerides, phospholipids, steroids
AP clue: Bilayer, hydrophobic tails
Proteins
Amino acids · folding · enzymes and structure
Monomer: Amino acids → polypeptides
Examples: Amylase, hemoglobin, collagen
AP clue: Peptide bond, active site, denaturation
Nucleic Acids
Nucleotides · DNA/RNA · genetic information
Monomer: Nucleotides
Examples: DNA, RNA
AP clue: Sugar-phosphate backbone, bases
0 of 4 macromolecule types explored · tap each card once
What Is the Unit 1 Learning Path for Chemistry of Life?
Follow these steps in order. You are on step 5.
Step 1Water PropertiesPolarity and hydrogen bonding
Step 2Elements of LifeCHNOPS and carbon
Step 3Monomers & PolymersBuilding blocks combine
Step 4Dehydration & HydrolysisBuild and break polymers
Step 5MacromoleculesCompare all four classes (you are here)
Step 6CarbohydratesSugars for energy and structure
Step 7LipidsMembranes and energy storage
Step 8ProteinsSequence, folding, function
Step 9Nucleic AcidsDNA and RNA information
Step 10AP Biology Unit 1 ReviewChemistry of Life study guide
Step 11Unit 1 Practice QuestionsFull MCQs and FRQs
Review Based on What Confused You
Missed sugars or polysaccharides?
Continue to the carbohydrates deep dive.
Missed hydrophobic molecules or membranes?
Review lipids for bilayers and energy storage.
Missed amino acids, enzymes, or folding?
Study proteins for sequence and shape.
Missed DNA, RNA, or nucleotides?
Open the nucleic acids guide.
Missed building blocks?
Review monomer-polymer pairs.
Missed build/break reactions?
Review dehydration synthesis and hydrolysis.
Missed CHNOPS?
Review elements of life.
Missed water and polarity?
Review water properties.
What Vocabulary Should You Know for Macromolecules?
MacromoleculeA large biological molecule used by cells.
CarbohydrateA sugar or sugar-based molecule used for energy, storage, or structure.
LipidA mostly hydrophobic molecule used for energy storage, membranes, and signaling.
ProteinA folded molecule made from amino acids that performs many cell functions.
Nucleic acidA molecule such as DNA or RNA that stores or transmits genetic information.
MonomerA small molecular building block.
PolymerA larger molecule made of many linked monomers.
MonosaccharideA simple sugar and carbohydrate building block.
PolysaccharideA carbohydrate polymer made of many monosaccharides.
Amino acidThe building block of proteins.
PolypeptideA chain of amino acids.
NucleotideThe building block of nucleic acids.
PhospholipidA lipid with a hydrophilic head and hydrophobic tails, important in membranes.
TriglycerideA lipid used for long-term energy storage.
SteroidA lipid with a ring structure that can function in signaling.
EnzymeA protein that speeds up a chemical reaction.
DenaturationA change in protein shape that can reduce or destroy function.
HydrophobicWater-fearing or not mixing well with water.
HydrophilicWater-loving or interacting well with water.
Structure-function relationshipThe idea that a molecule's shape and chemical structure affect what it does.
Sugar-phosphate backboneThe structural backbone of DNA and RNA.
Nitrogenous baseA nucleotide component that helps encode genetic information.
Peptide bondA bond that links amino acids.
Glycosidic bondA bond that links sugar units.
Phosphodiester bondA bond that links nucleotides in nucleic acids.
24 Macromolecules Flashcards
Every 5th card shows an ad placeholder with a short countdown. Flip the card to read the definition, then use the arrow for the next card.
Card 1 of 24Tap card to flip
18 AP-Style MCQs on Macromolecules
Choices shuffle at display time. Tap an answer, read the explanation, then use Next question.
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Question 1 of 18Overview
Want more Unit 1 drills? Try daily AP Biology practice or practice by topic.
Mini FRQ Practice on Macromolecules
Click a question to open the full prompt. Write your answer on paper first, then reveal the rubric and a strong sample response.
FRQ 1 · 3 points
Carbohydrates vs lipids as energy molecules
Prompt
- A student compares carbohydrates and lipids as energy-related molecules in a plant and an animal cell.
- Carbohydrates include glucose and starch; lipids include triglycerides stored in adipose tissue.
- Describe one structural difference between carbohydrates and lipids and explain how that difference relates to function.
Scoring rubric
- 1 pt — Identifies a structural difference (sugar units vs nonpolar hydrocarbon regions).
- 1 pt — Connects carbohydrate structure to quick energy or storage function.
- 1 pt — Connects lipid structure to long-term energy storage or hydrophobic behavior.
Sample answer
Carbohydrates are often built from sugar units such as glucose and can be used for quick energy or storage in polysaccharides like starch. Lipids contain many nonpolar hydrocarbon regions in fatty acid tails, which do not mix well with water.
The nonpolar C-H rich structure of lipids allows them to store a large amount of energy per gram and to form hydrophobic regions in membranes. Carbohydrates are more water-friendly and easier to break down quickly for immediate ATP production—different structures, different energy strategies.
Before you submit
Compare sugar polymers to hydrocarbon-rich lipids—not just 'both store energy.'
FRQ 2 · 3 points
Why protein shape matters
Prompt
- An enzyme in the small intestine loses activity after extreme heat even though its amino acid sequence is unchanged.
- The student concludes that only the sequence matters for protein function.
- Explain why protein shape is important for protein function using this scenario.
Scoring rubric
- 1 pt — Identifies amino acids as protein building blocks.
- 1 pt — Connects sequence/folding to three-dimensional shape.
- 1 pt — Explains how shape affects function (active site, binding, or denaturation).
Sample answer
Proteins are built from amino acids, and the amino acid sequence affects how the chain folds into a specific three-dimensional shape. That folded shape determines how the protein functions.
An enzyme works because its active site has a complementary shape for its substrate. Heat can cause denaturation, changing the shape without changing the sequence. Once shape is lost, binding and catalysis stop—so AP Biology rewards structure-function reasoning, not sequence alone.
Before you submit
Heat denatures shape—sequence unchanged but function lost.
FRQ 3 · 3 points
Identifying a nucleic acid polymer
Prompt
- A lab sample contains nucleotides joined into a long chain with a sugar-phosphate backbone.
- Each subunit includes adenine, guanine, cytosine, or thymine attached to deoxyribose.
- Identify the macromolecule group and describe one function of that group.
Scoring rubric
- 1 pt — Identifies nucleic acid (DNA acceptable).
- 1 pt — Identifies nucleotides as building blocks.
- 1 pt — Describes genetic information storage or transmission.
Sample answer
The molecule is a nucleic acid, most likely DNA. It is built from nucleotide monomers linked by phosphodiester bonds in a sugar-phosphate backbone.
Nucleic acids such as DNA and RNA store or transmit genetic information. The sequence of nitrogenous bases encodes instructions cells use to build proteins and regulate metabolism—structure stores information, function follows sequence.
Before you submit
Sugar-phosphate backbone + bases → nucleic acid, not protein.
FRQ 4 · 3 points
Are all macromolecules true polymers?
Prompt
- A review sheet states that all four biological macromolecules are true polymers of repeating identical monomers.
- A classmate agrees because carbohydrates, proteins, and nucleic acids clearly follow monomer-polymer logic.
- Explain why this statement is inaccurate and name the major exception.
Scoring rubric
- 1 pt — States that many macromolecules are polymers (proteins, nucleic acids, many carbohydrates).
- 1 pt — Identifies lipids as the exception.
- 1 pt — Explains why lipids are not usually true polymers (no repeating monomer chain; hydrophobic grouping).
Sample answer
Many macromolecules are polymers: proteins from amino acids, nucleic acids from nucleotides, and many carbohydrates from monosaccharides. These classes form long chains of linked subunits with covalent bonds.
Lipids are the major exception. A triglyceride is glycerol plus three fatty acids—not a long repeating chain of identical monomers. Lipids are grouped as macromolecules because they are large and biologically important, but they are classified mainly by hydrophobic properties, not classic polymer chemistry.
Before you submit
Lipids are macromolecules—but not usually true polymers.
Frequently Asked Questions About Macromolecules
What are the four macromolecules in AP Biology?
The four major macromolecules in AP Biology are carbohydrates, lipids, proteins, and nucleic acids. Each group has different building blocks, structures, and biological roles that AP questions expect you to compare.
What are carbohydrates used for in AP Biology?
Carbohydrates are used for quick energy, energy storage, and structural support. Glucose fuels respiration, starch and glycogen store energy, and cellulose strengthens plant cell walls.
What are lipids used for in AP Biology?
Lipids are used for long-term energy storage, membranes, insulation, and signaling. Triglycerides store energy, phospholipids form membranes, and steroids can act as hormones.
What are proteins used for in AP Biology?
Proteins perform many cell functions, including enzymes, transport, structure, movement, signaling, and receptors. Their amino acid sequence and folded shape determine which job each protein can do.
What are nucleic acids used for in AP Biology?
Nucleic acids store and transmit genetic information. DNA and RNA are the major examples, and their nucleotide sequences encode instructions cells use to build and regulate proteins.
What are the monomers of carbohydrates?
The monomers of carbohydrates are monosaccharides, such as glucose. Monosaccharides can join into disaccharides and polysaccharides through dehydration synthesis.
What are the monomers of proteins?
The monomers of proteins are amino acids. Amino acids link by peptide bonds to form polypeptides that fold into functional proteins.
What are the monomers of nucleic acids?
The monomers of nucleic acids are nucleotides. Each nucleotide has a sugar, phosphate group, and nitrogenous base.
Are lipids polymers?
Lipids are not usually true polymers because they are not made of long repeating monomer chains like proteins or nucleic acids. They are grouped as macromolecules mainly because they are large and mostly hydrophobic.
How do I identify macromolecules on AP Biology questions?
Look for clues such as glucose or starch for carbohydrates, hydrophobic tails or bilayers for lipids, amino acids or enzymes for proteins, and nucleotides or DNA/RNA for nucleic acids. Match the clue to building blocks and function before you pick an answer.
Which macromolecule has enzymes?
Enzymes are usually proteins. An enzyme's active site shape allows it to bind a specific substrate and speed up a chemical reaction.
Which macromolecule forms cell membranes?
Phospholipids, a type of lipid, form the main structure of cell membranes. Their hydrophilic heads and hydrophobic tails explain bilayer formation in water.
Which macromolecule stores genetic information?
Nucleic acids store genetic information, especially DNA. RNA helps cells use that information during processes such as protein synthesis.
What should I know about macromolecules for AP Biology FRQs?
Be ready to connect each macromolecule's structure, building blocks, and chemical properties to its biological function. Strong FRQ paragraphs name the macromolecule, describe relevant structure, and explain why that structure supports a specific cell process.
Final Review Checklist for Macromolecules
Check each skill when you can explain it without looking at the page.
0 of 14 skills ready
You finished Macromolecules
Nice work—you explored all four macromolecule types and checked off the review skills. Continue to carbohydrates for your first deep dive, or open lipids, proteins, and nucleic acids from the links below.
Where to Go Next in Unit 1
You just compared the four major macromolecule groups. Next, go deeper into each molecule type, starting with carbohydrates.