Section 2 Flashcards
prokayutes
which include only bacteria, and
Cyanobacteria They lack membrane bound nuelei and mist of the organelles found in other cells.
Eukaryotes
Which include the protists, tungi, Pants and animals, These are cells specialized to perform particular functions
Cell wall
Present in eukaryotic Plant cells and bacteria prokaryles Main tuneron is to Suppet and Protect Channels in the cell wall
Connect neighbor calls(rigid membrane, found in plants and some bacteria)
Ribosomes
Small dark dots found in the cytoplasm at the cen. responsible for protein Synthesis.(protein synthesis.)
Endoplastic reticulum (ER)
forms a system
a tubular Channels
that brances thrughot
the Cytoplasm.(transport nutrients within the cell)
mitochondria
sites of cellular respiration ,use glucose
to produce energy in form of ATP(breaks down glucose into ATP energy)
Chloroplasts
found and in plants cells only site of photosynthesis in eukaryote plants(glucose and oxygen from carbon dioxide and water) gives plants to green colour
vacuole
A large membrane enclosed Sac that
transport materials
thought the cell(storage)
vesicle
Small vocuole, transport material
around the cell
golgi Apparatus
stacks of membranes. functions in modifying packaging, String and distributing Preteins plodued by the ER Creates Small membrane Contained Sacs Called Vesicles(package proteins made you exocytosis)
LySosomes
in animal celles ony, hold digestive enzymes, break down large molecules and old cell parts within the cytoplasm.(breaks down the nutrients and waste)
Cell membrane
flexible Structure that Surrounds the cell, holding it togeter. regulates the passage at materials into and out of the cell Composed of a phodhoipid bilayer arranged with their hydrophobic fatty tails(flexible membrane around the eukaryotic)
Passive Transport
movement of high to low Concentrations (down Conc gradient) which requiem the energy usage since molecules energy drives the movement
Facilitated Diffusion
Specialized structres in the membrare allow larger water-solute molecules to diffuse. This is driven by the concentration gradient
Osmosis
Diffusion of water across a semi permeable membrane
Active transport
Movement of a substance from a area of low concentration area of high concentration
function of proteins
Transport channels, enzyme, receptors, identification, communication
lipids tails are…..
hydrophobic
recognition proteins
-are embedded in the membrane but stick out into Surroundings So that cells Can recognize each other
ex-egg and Sperm cells link, , white blood cells recognizns and  attaching to bacteria, viruses
Semi permeable membrane
A type of membrane which allows certain particles to pass through while others are excluded, can natural or synthetically  produce
Hypotonic solution(osmosis)
describe the solution that has lower solute concentration than other  solution
hypertonic solution (osmosis)
describe a solution that has a higher solute concentration to another solution
isotonic solution(osmosis)
Describes a solution that has the same salute concentration as an another solution
centrosome
Has a role in mitosis to separate chromosomes
nucleus
contains DNA that genetic materials and directs all cellular activity(contains DNA)
cytoplasm
Joe likes something that holds organelles contains nutrients for life process, found outside the nucleus and inside the membrane.
nucleolus
located within the nucleus, responsible for creating ribosomes(humans only have in their cells)
