cell structure Flashcards
Cell
basic unit of life
Eukaryotic cell
cell that have nucleus and membrane-bound organelles
Prokaryotic cell
cell that does not have nucleus nor membrane-bound organelles
Function of cell wall
covers the cell membrane and offers rigidity to the cell
Function of cell membrane
covering of the cell, plays a vital role in getting nutrients into the cells and sending waste products out.
Function of nucleus
control and direct cell’s activities, where the chromosomes are located
Function of cytoplasm
cell fluid that surrounds other organelles, and cell particular
Function of mitochondria
where cellular respiration occurs by using glucose to produce energy ATP
Function of RER
where ribosomes are assembled or synthesized by using amino acids.
Function of SER
make fatty acids and steroids
Function of ribosome
use for peptide molecule synthesis
Function of golgi body
sorting and packing center for peptide molecules to form protein in vesicle
Function of chloroplast
contains chlorophyll to capture sunlight energy for photosynthesis
Function of vacuole
enclosed membrane compartments which are filled with water, food, waste, and other materials
Function of lysosome
vesicle filled with digestive enzymes to break down or destroy things
Function of centriole
give mitotic spindle fibers for attachment to chromatin during nucleus cell division
Levels of organization
cells, tissues, organs, organ systems, organisms
Chloroplasts
large green structure floating in the cytoplasm that only exist in plant cells
Chromatin
substance within a chromosome consisting of DNA and protein
Chromosome
long DNA molecule with part or all of the genetic materials of an organism
components of nucleus
nuclear membrane, chromatin, nucleolus, nucleoplasm
Function of nuclear membrane
protects and allows materials to enter and leave the nucleus
Function of chromatin
contains genetic materials that direct the functions of the cells
Function of nucleolus
makes ribosomes
Function of nucleoplasm
acts as an suspension substance for the organelles in the nucleus