Cells 2 Flashcards
In 1665, this scientist observed a thin slice of cork and noted that it looked like “little boxes,” which he called cells.
Robert Hooke
The word “cells” in Latin means this.
“Little rooms”
This scientist concluded that all plant parts are made of cells.
Matthias Schleiden
This scientist concluded that all animal parts are made of cells.
Theodor Schwann
This scientist proposed that all cells arise from pre-existing cells, contributing to the cell theory.
Rudolf Virchow
The three principles of the Cell Theory are:
- All organisms are made of cells.
- The cell is the basic unit of life.
- All cells come from existing cells.
These cells do not have a true nucleus or membrane-bound organelles.
Prokaryotic Cells
These cells have a true nucleus enclosed by a membrane and contain membrane-bound organelles.
Eukaryotic Cells
The study of living things too small to be seen without magnification.
Microbiology
Microscopic organisms, commonly called “germs,” “viruses,” or “agents.”
Microorganisms (Microbes)
Microorganisms found in diverse environments, including extreme conditions.
Bacteria
Microorganisms that have cell walls; some, like molds, can cause respiratory problems when inhaled.
Fungi
Not independently living organisms; require a host cell to replicate.
Viruses
In animals, sexual reproduction involves specialized sex cells called these.
Gametes (sperm and egg)
The union of male and female gametes results in the formation of this, which develops into a new individual.
Zygote
The male reproductive part of a flower that produces pollen.
Stamen
The female reproductive part of a flower that contains the ovules (eggs).
Carpels (Pistil)
The transfer of pollen from the anther to the stigma, leading to fertilization.
Pollination
