chapter 2 2 (cells)
TRANSCRIPT
All You Need To Know About Cells
The basic unit of in living things is a . All living things are made up of one or more cells.
structure
cell
Cell Theory
Matthias Schleiden
German
Year:
Stated:
Botanist
1838
All plants are made up of cells
Theodor Schwann
German
Year:
Stated:
Zoologist
1839
The cell is the basic unit of structure in animals
Rudolph Virchow
German
Year:
Stated:
Doctor
1855
New cells come from cells that already exist. Cells divide to create new cells.
Cell Theory
The Cell Theory states:
All living things are made up of one or more
Cells are the basic unit of structure in living things, and cells carry on all
Cells come only from
cells
life processes
0ther living cells
Main Parts of the Cell
Cell Membrane
Cytoplasm
Nucleus
Most cells have three main parts:
1.
Thin structure that surrounds the cell.
The cell membrane has 3 important jobs:
- the inside of the cell
- Supports and gives a cell its
- movement of material into and out of cell
Cell Membrane
Protects
shape
Controls
2.
Gel-like substance that is constantly moving
3.
The of the cell
- Controls all life processes and reproduction
- Contains DNA for how the cell is supposed to function
Cytoplasm
Nucleus
Control Center
Other Parts of the Cell
Vacuole
Mitochondria
Ribosomes
Golgi Bodies
Lysosomes
Endoplasmic Reticulum
Organelles are small structures that are suspended in the
. Each organelle has a special job to do and keep the cell working properly.
Mitochondria
Release that the cell can use. Known as the “powerhouses” of the cell.
Endoplasmic Reticulum
Small, network of inside the cell. Substances move along these tubes from one organelle to another.
Ribosomes
Small rounded structures that make . These proteins are needed for growth and are involved in the cell processes.
cytoplasm
energy
tubes
proteins
Golgi Bodies
The golgi bodies package and distribute to other parts of the cell. Golgi bodies also send materials to the outside of the cell.
Vacuoles
Small storage spaces in the cells cytoplasm. The vacuoles store Plant cells have one large vacuole and animal cells have many small vacuoles.
Lysosomes
Contains powerful that digest nutrient molecules in the cell.
materials
food and water.
chemicals