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

Walther Flemming discovered the mitochondria in the cell.

False

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

True

August Weismann suggested that DNA carries the genetic material.

False

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

<p>False</p> Signup and view all the answers

Friedrich Miescher first isolated RNA, which he called nuclein.

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

Cell division supports the idea of spontaneous cell generation.

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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

<p>True</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

The Calvin cycle was elucidated using mass spectrometry.

<p>False</p> Signup and view all the answers

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