Biology Handbook: Pro

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Biology Handbook is an offline reference for school and first-year university biology: 164 articles in 16 topics, each with a key scheme, a worked example, the boundaries of the rule and the mistakes that cost marks. EVERY TOPIC IN ONE PLACE The cell, the chemistry of life, metabolism and energy, cell division, molecular biology, genetics, population genetics and breeding, reproduction and development, evolution, taxonomy and diversity, botany, zoology, the human body, regulation and defence, ecology, and the methods of biology. A SCHEME, NOT A WALL OF TEXT Each article opens with the record that carries its meaning: 6CO2 + 6H2O → C6H12O6 + 6O2, DNA → mRNA → protein, 2n2c → 2n4c, Aa × Aa → 3 : 1. Schemes are typeset by the app, not drawn as pictures, and there are 318 additional records across the book. CALCULATE WHERE BIOLOGY CALCULATES 52 articles include a calculator with 202 solvers: allele frequencies under Hardy–Weinberg, nucleotides to amino acids to protein mass, the length and mass of a DNA fragment, ATP yield, osmotic pressure, cardiac and respiratory minute volume, microscope magnification, PCR copies, population density and mark–recapture, the ten per cent rule. Nothing is invented: an article without a genuine formula has no calculator. LEARN FROM WORKED EXAMPLES All 164 articles contain a complete worked example — a calculation or a reasoned biological question: the given facts, the reasoning step by step, and the answer. KNOW THE LIMITS 471 “when it applies” notes and 485 common mistakes: Mendel's third law fails for linked genes, Hardy–Weinberg needs a large population, the cell theory does not cover viruses, plasmolysis is reversible. THE TABLES YOU KEEP NEEDING 15 summary tables with 211 rows: the genetic code with all 64 codons, taxonomic ranks, cell organelles, plant, animal, fungal and bacterial cells side by side, mitosis against meiosis, DNA against RNA, human tissues and organ systems, digestive enzymes, vitamins, hormones, blood groups, plant divisions and animal phyla. Plus 34 reference values and 22 units with prefixes. FIND IT FAST Search by article name, term, symbol or unit. Filter by topic, by favourites, or show only articles that have a calculator. Star what matters and the cheat sheet screen turns your favourites into a revision list. SEVEN LANGUAGES English, Spanish, Arabic, French, Hindi, Thai and Russian — the articles, the tables and the words inside the schemes. Arabic reads right to left while schemes keep their standard direction. COMFORTABLE TO USE Light and dark themes, phones and tablets, portrait and landscape. No account, no ads, no in-app purchases. The reference text, translations and fonts are installed with the app, so every feature works offline. Your favourites, language and theme stay on your device. Written as a study aid and a quick reference, following standard school and introductory university treatments. It is not medical advice: reference ranges are given for study, not for diagnosis.Read more

Biology Handbook is an offline reference for school and first-year university biology: 164 articles in 16 topics, each with a key scheme, a worked example, the boundaries of the rule and the mistakes that cost marks. EVERY TOPIC IN ONE PLACE The cell, the chemistry of life, metabolism and energy, cell division, molecular biology, genetics, population genetics and breeding, reproduction and development, evolution, taxonomy and diversity, botany, zoology, the human body, regulation and defence, ecology, and the methods of biology. A SCHEME, NOT A WALL OF TEXT Each article opens with the record that carries its meaning: 6CO2 + 6H2O → C6H12O6 + 6O2, DNA → mRNA → protein, 2n2c → 2n4c, Aa × Aa → 3 : 1. Schemes are typeset by the app, not drawn as pictures, and there are 318 additional records across the book. CALCULATE WHERE BIOLOGY CALCULATES 52 articles include a calculator with 202 solvers: allele frequencies under Hardy–Weinberg, nucleotides to amino acids to protein mass, the length and mass of a DNA fragment, ATP yield, osmotic pressure, cardiac and respiratory minute volume, microscope magnification, PCR copies, population density and mark–recapture, the ten per cent rule. Nothing is invented: an article without a genuine formula has no calculator. LEARN FROM WORKED EXAMPLES All 164 articles contain a complete worked example — a calculation or a reasoned biological question: the given facts, the reasoning step by step, and the answer. KNOW THE LIMITS 471 “when it applies” notes and 485 common mistakes: Mendel's third law fails for linked genes, Hardy–Weinberg needs a large population, the cell theory does not cover viruses, plasmolysis is reversible. THE TABLES YOU KEEP NEEDING 15 summary tables with 211 rows: the genetic code with all 64 codons, taxonomic ranks, cell organelles, plant, animal, fungal and bacterial cells side by side, mitosis against meiosis, DNA against RNA, human tissues and organ systems, digestive enzymes, vitamins, hormones, blood groups, plant divisions and animal phyla. Plus 34 reference values and 22 units with prefixes. FIND IT FAST Search by article name, term, symbol or unit. Filter by topic, by favourites, or show only articles that have a calculator. Star what matters and the cheat sheet screen turns your favourites into a revision list. SEVEN LANGUAGES English, Spanish, Arabic, French, Hindi, Thai and Russian — the articles, the tables and the words inside the schemes. Arabic reads right to left while schemes keep their standard direction. COMFORTABLE TO USE Light and dark themes, phones and tablets, portrait and landscape. No account, no ads, no in-app purchases. The reference text, translations and fonts are installed with the app, so every feature works offline. Your favourites, language and theme stay on your device. Written as a study aid and a quick reference, following standard school and introductory university treatments. It is not medical advice: reference ranges are given for study, not for diagnosis.