Essential Biology Note Jun 2026

The powerhouse where ATP (energy) is produced via cellular respiration. Ribosomes: The sites of protein synthesis.

: Use flashcards for terminology and frequent self-testing to gauge your comprehension rather than just re-reading. Rhodes College 3. Note-Taking Layouts

Mitochondria and chloroplasts have their own DNA and ribosomes (70S), supporting the Endosymbiotic Theory —that they were once free-living prokaryotes engulfed by larger cells. essential biology note

Crossing over occurs in Prophase I of Meiosis. This is when homologous chromosomes swap segments, creating unique genetic combinations—the reason siblings aren't identical (unless they are identical twins).

These two processes are a cycle. The oxygen you breathe out (plants) is the oxygen you inhale (animals). The CO₂ you exhale is what plants breathe in. The powerhouse where ATP (energy) is produced via

Prokaryotes (bacteria) lack a nucleus; Eukaryotes (plants/animals) have a membrane-bound nucleus and organelles. 2. Genetics and Inheritance How traits are passed from parents to offspring.

Before diving into organisms, we must understand the molecular building blocks that make life possible. Rhodes College 3

Let’s be honest. Biology is the study of life , but sometimes it feels like the study of an endless list of confusing Latin words.

Biology is visual and conceptual; your notes should reflect that: Rhodes College Prioritize Diagrams