Facts
Who was the first person to study cells?
Robert Hooke
define Cell Membrane
a thin layer covering the entire cell; controls what enters and exits the cell
If you see that the cell has a cell wall, is it a human's cell or an plant's cell?
An plant's cell.
define Chlorophyll
a green pigment plants use to make their own food
All organisms are made of cells
True or False:
Cells are about 1cm.
False: Cells are microscopic.
define Cell Wall
a stiff outer layer that protects the cell and gives it shape
If a cell was more circular shaped, who or what does it belong to?
A human or animal.
define Vacuole
organelle that stores food, water, and waste
What was the 2nd cell theory?
All cells come from preexisting cells
Monastery
define Cytoplasm
jelly like substance found in cells that supports the organelles
define Nucleus
the control center of the cell; it directs all the cell’s activities
What was the 3rd cell theory?
The cell is the basic unit of life
define Mitochondria
organelles that provide energy to the cell
define DNA
genetic material in the nucleus that directs the life activities of the cell
define Chloroplast
organelle that traps sunlight and converts it into sugars
define Chromosome
a structure that contains the info necessary to determine the characteristics of the organism