Bank Q & A 2023/2024 Approved
Robert Hooke (1665) correct answers English scientist who observed cork under a microscope. First to
use the word "cell" in reference to biology.
Antoni van Leeuwenhoek (1632-1723) correct answers Dutch pioneer microscopist who was among the
first to observe single-celled organisms, sperm cells, red blood cells, etc. Often called the father of
microbiology.
Robert Brown (1833) correct answers Scottish botanist who was the first to observe nucleus
Matthias Schleiden (1838) correct answers German physiologist and histologist who observed that
embryonic plants came from just one cell. Also helped formulate Cell Theory.
Theodor Schwann (1839) correct answers German physiologist and histologist who formulated Cell
Theory.
Louis Pasteur (1860) correct answers French microbiologist who modified the Cell Theory to include that
cells must come from pre-existing cells.
Cell Theory correct answers All organisms have 1 or more cells; the cell is the basic unit of structure for
all cells; all cells must come from pre-existing cells.
Light Microscope correct answers (Wheat rust)
Fluorescence Microscopy correct answers (Image of a neuron)
SEM (Scanning Electron Microscope) correct answers (Fruit fly)
TEM (Transmission Electron Microscope) correct answers (Section of a nerve)
Prokaryotes correct answers Cells which do not contain a nucleus
Eukaryotes correct answers Cells which contain a nucleus
Average size of cells correct answers 5-20 μm
Minimum resolution by naked eye correct answers 200 μm
Minimum resolvable by light microscope correct answers 200 nm
Minimum resolvable by electron microscope correct answers 0.2 nm
DNA correct answers genetic information store