Biology

Biology — Grade 10

American Curriculum · Ages 15-16

Tenth grade Biology appears where a district runs a Physical Science or Physics-first sequence in ninth grade, so students meet biology with a year of quantitative science already behind them. The syllabus is the standard or honors biology course — cells, energy, genetics, evolution and ecology — but taught at a faster pace and with more mathematical treatment.

The step up from ninth grade shows in genetics and ecology, where students handle dihybrid crosses, chi-square goodness-of-fit, Hardy-Weinberg calculations and quantitative population models. Honors sections often serve as the direct feeder into AP Biology, so grades here influence course placement for the following two years.

Key topics covered

• Cells & Membrane Transport — Cell theory, organelle function and quantitative transport problems.
• Enzymes & Metabolism — Enzyme kinetics, inhibition, and the energetics of respiration and photosynthesis.
• Molecular Genetics — Gene expression, regulation, biotechnology and gel electrophoresis.
• Advanced Inheritance — Dihybrid crosses, linkage, chi-square analysis and non-Mendelian patterns.
• Evolution & Population Genetics — Hardy-Weinberg equilibrium, drift, selection and phylogenetics.
• Ecology & Modelling — Population growth models, carrying capacity and human impact.
• Laboratory Investigation — Controlled design, error analysis and formal lab reporting.