Easy
This characteristic of living things is demonstrated when you feel warm next to a bonfire
Sensitivity
This process of increasing in size and/or number of cells is a key characteristic of life.
Growth
This characteristic of life involves maintaining the species over time.
Reproduction
These tiny dots make proteins. They can be "free" in the cytoplasm or "attached" to another organelle.
Ribosomes
This scientist was the first to observe and name "cells" while looking at cork under a microscope.
Robert Hooke
This Dutch scientist made his own powerful lenses and was the first to observe living single-celled organisms in pond water.
Anton van Leeuwenhoek
This German physician concluded that all cells come from pre-existing cells, completing the modern cell theory.
Rudolf Virchow
This organelle is like the cell's "post office," packaging and shipping proteins.
Golgi apparatus
This jelly-like substance inside the cell membrane is where most of the cell's activities occur.
Cytoplasm
The second statement of the cell theory.
Cells are the basic unit of structure and function in all living organisms.
This scientist's work with plant tissues led him to conclude that all plants are made of cells, contributing to the first tenet of cell theory.
Matthias Schleiden
Plant cells have this large, water-filled sac that provides support; it's much smaller in animal cells.
Vacuole
This is the basic structural and functional unit of all living organisms.
The cell
This organelle, found in plant cells, uses energy from sunlight to create food (sugar).
Chloroplast
This organelle is a network of membranes responsible for the synthesis of proteins and lipids; it can be "rough" or "smooth."
Endoplasmic Reticulum
Nicknamed the "suicide sac," this organelle contains enzymes to break down a cell that is old or damaged.
This organelle, known as the "control center," contains the cell's DNA.
Nucleus
This rigid outer layer provides support and protection for plant cells.
Cell Wall
This is the "powerhouse" of the cell because it converts chemical energy in food into a usable form (ATP)
Mitochondrion
These hair-like structures help a cell move. In humans, they are found in our respiratory tract.
Cilia