Biology Exam Study Guide: Origins of Life, Molecular Biology, and Cellular Evolution

Vocabulary flashcards covering origin-of-life theories, endosymbiosis, molecular genetics, and major evolutionary events outlined in the study guide.

Theory of Abiogenesis

A theory regarding the origin of life on Earth that is evaluated alongside specific scientific experiments and evidence, differing from Spontaneous Generation and Biogenesis.

Theory of Spontaneous Generation

A historical theory concerning the origin of life on Earth that is contrasted with Biogenesis and Abiogenesis and supported or refuted by specific experiments discussed in class.

Theory of Biogenesis

A theory regarding the origin of life on Earth based on evidence and experimental demonstrations showing that living organisms arise from other living organisms.

Serial Endosymbiotic Theory

A theory that attempts to explain how complex cellular structures and specific organelles evolved through symbiotic processes between organisms.

The Great Oxygenation Event

A transformative historical event involving the rise of prokaryotic autotrophs that drove critical physical, geological, and biological changes across the Earth.

Prokaryotic Autotrophs

Early organisms whose emergence and metabolic activity changed the world, resulting in significant physical, geological, and biological consequences.

Protein Structure

The molecular configuration of proteins consisting of specific subunits organized into $4$ distinct levels of structural organization.

Symbiosis

Close relationships and interactions between different organisms, serving as a basis for understanding events like serial endosymbiosis.

First Life on Earth

The earliest ancestral living entities that arose on Earth, studied through theories of life's origin and the emergence of early prokaryotes.

DNA and RNA

The nucleic acid molecules that carry genetic information, characterized by key structural similarities as well as differences in composition and function.

Three Types of RNA

The three specialized functional classes of ribonucleic acid discussed in class that participate in the expression and translation of genetic code.

Phylogenic Trees

Branching diagrams used to represent evolutionary relationships between organisms, which require specific methods and orientation to interpret.

DNA Replication

The biological process of copying a DNA molecule, defined by a distinct sequence of enzymatic steps and specific enzymes.

Transcription

The step-by-step enzymatic process of generating an RNA transcript from a complementary DNA template.

Translation

The cellular process carried out by specific enzymes and steps where an RNA sequence is read to assemble a corresponding chain of amino acids.