Zusammenfassung der Ressource
Cells
- Cell Theory
- All cells come from pre
existing cells
- Cells multiply through division.
Meiosis generates haploid
gametes (sex cells
- Unicellular organism: are single-celled and
can carry out all of the functions of life
independently.
- Multicellular organisms have
specialized cells to carry out
specific functions.
- They are the smallest
units of life
- Specialized structures within
cells (organelles) carry out
different functions. Organelles
cannot survive alone
- Plants
- Eucayotes
- Life with a nucleus
- 10-100 μm
- Double Helix
- Structure of the DNA
- Has nuclear membrane
- Membrane bound
- 80s (big)
- Many Different Organelles
- Nucleus: The “brains” of the cell, the
nucleus directs cell activities and
contains genetic material called
chromosomes made of DNA.
- Mitochondria: Make energy
out of food
- Ribosomes: Make protein
- Golgi Apparatus: Make, process and
package proteins
- Lysosome: Contains digestive enzymes
to help break food down
- Endoplasmic Reticulum:
transporting all sorts of items
around the cell.
- Vacuole: Used for storage,
vacuoles usually contain water
or food
- Chloroplast (only for plants) : Uses
sunlight to create energy
- Cell Wall (only for
plant): Serves as supports
- Animals
- Bacteria
- Procayotes