Cell Theory and Experimental Design

Vocabulary flashcards reviewing key historical figures in microscopy and cell theory, modern biomedical advances, and foundational concepts of scientific experimental design.

Antony van Leeuwenhoele

Inventor of a simple (single-lens) microscope with 200X magnification who published observations of blood, lake water, sperm, and bacteria from tooth scrapings.

matthias Schleiden and Theodor Schuam

Researchers who examined a wide variety of specimens and concluded that 'all organisms were composed of cells', establishing the first tenet of Cell theory.

Scientific method

The process of performing science, including careful observation, logical thinking, and proper analysis of observations and conclusions.

Sample Size

The number of subjects in a study.

Control group

A group in experimental design that resembles the treatment group but does not receive treatment.

Psychosomatic effects

Effects of a subject's state of mind on her or his physiology, tested by giving a placebo to the control group.

Double blind method

A method used to avoid experimenter bias in which neither the subject nor the experimenter knows if the subject is part of the control or treatment group.