Chapter 1: Preview of the Cell - Microscopy and Early Cell Biologists

Walther Flemming discovered the mitochondria in the cell.

Beadle & Tatum formulated the one gene-one enzyme concept.

August Weismann suggested that DNA carries the genetic material.

Morgan, Bridges, & Sturtevant connected specific traits to specific chromosomes in humans.

Friedrich Miescher first isolated RNA, which he called nuclein.

Matthias Schleiden and Theodor Schwann were the first to invent the microscope.

The observations made by the early microscope were limited by high magnification power.

Cell biology in its early stages focused more on explanation rather than observation.

Spirulina platensis is a rare non-edible bacteria with a spiral shape.

Cell division supports the idea of spontaneous cell generation.

Wohler's experiment demonstrated that living things operate beyond the laws of chemistry and physics.

Electrophoresis is a technique that separates molecules from a solution based on color.

Mass spectrometry helps identify the composition of bioactive plant components by converting them into ions.

Lane 1 in electrophoresis typically contains DNA fragments of unknown sizes.

Gregor Mendel's experiments with peas focused on understanding the chemistry of plant components.

Centrifugation is a technique used to trace the metabolic fate of specific atoms and molecules.

The Calvin cycle was elucidated using mass spectrometry.