Studied by 2 people
functions of the different organelles in the cell
cell membrane
protective barrier, lipid bilayer
cell wall
provides strength and protection, only in plant cells
cytoplasm
fills cell and surrounds organelles
nucleus
control system of cell, protection for DNA
instructions to make protein (cromosones make up chromatin, chromatin makes up DNA)
chromosone/chormatin/DNA
nucleolus
contains RNA to make riboomes, found inside nucleus
made of protein and makes protein
ribosomes
Rough Endoplasmic Reticulum
makes protein
Smooth endoplasmic reticulum
produces fats, folds and prepares protein
golgi body
recieves proteins, transports!!!!
mitochondria
supplies energy (ATP)
Lysosomes
where digestion takes place, breaking down bacteria and damaged cell organelles
vacuoles
stores nutrients, waste, and substances used by the cell
centrioles
FACILITATES CELL DIVISION!!!
cytoskeleton
maintains cell shape and provides structure
Chloroplast
where photosynthesis takes place in a plant cell; only in plant cells
what is interphase?
the process a cell undergoes in preperation for mitosis
describe the processes happening in G1
cell growth, replication of organelles, protein synthesis
describe the processes happening during synthesis or “s”
DNA duplication
describe the processes happening during G2
preparation for cell divison, reorganisation of organelles
name the first phase of mitosis
prophase
name the second phase of mitosis
metaphase
name the third phase of mitosis
anaphase
name the last phase of mitosis
telophase
what is the name and product of the phase after mitosis
cytokenisis; two daughter cells
what happens during prophase?
nucleus dissolves, centrioles migrate to poles, chromosones condense
what happens during metaphase?
chromozones line up, spindle fibres attach to centromeres
what happens during anaphase?
seperation of bivalent chromosones, chromatids go to each pole of the cell
what happens during telophase?
formation of two nuclei, divot between the future daughter cells begins
Note
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