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Science grade 8

everything science

the control center of the cell nucleus
contain DNA or genetic material chromosomes
provides the "blue prints" or "construction plans" DNA
contained in the nucleus chromosomes
hold the cell material in place cell membrane
controls the movements of materials like nutrients and wastes in and out of the cell cell membrane
a watery fluid that holds everything inside the cell membrane cytoplasm
cell chemical activity takes place within here cytoplasm
can store waste material cytoplasm
fluid allows materials to pass between different cell structures cytoplasm
appearance like bubble vacuole
acts like a fluid filled storage area. vacuole
used to store water and nutrients like glucose and minerals vacuole
tiny structures in the cell or membrane organelles
cells power source mitochondria
convert glucose into energy by combining it with oxygen to produce carbon dioxide and water. cellular respiration
protein manufacturing ribosomes
material transport endoplasmic reticulum
have more responsibility for moving amino acids "rough" endoplasmic reticulum
have more responsibility for moving fatty acids "smooth" endoplasmic reticulum
protein storage the golgi apparatus
an organelle that stores proteins and releases them to the surface of the cell in packages called vesicles
sent out to clean and patrol the cytoplasm lysomes
chemically change large molecules into smaller molecules enzymes
plants contain green fluids called chlorophyll
captures sunlight to convert water and carbon dioxide into sugar and oxygen process photosynthesis
movement of molecules from an area of high concentration to low concentration diffusion
material that allows some particles to pass through, but keep others out selectively permeable membrane
an example of a selectively permeable membrane lining of the small intestine
an example of a semi-permeable membrane cell membrane
refers to the diffusion of water across a selectively permeable membrane osmosis
outward pressure turgor pressure
5000 different types of this on the Earth bacteria
have no nucleus prokaryotic cells
bacteria that is resistant to antibiotics and can cause extreme illness and death "Superbugs"
eukaryotic unicellular organisms protists
neither animal nor plant protists
a protist that is both plant-like an animal-like euglena
protist that is close to a plant diatom
common animal-like protists amoeba and paramecia
not considered living because they have no cells Viruses
"germs" or disease causing invaders like bacteria and viruses pathogens
your own defense cells white blood cells
chemical agents that help defend the immune system antibodies
chemical signal given off by an invading organism antigens
cells that keep your antibody memory roam freely in the blood B-cells
an injection of blood plasma containing dead or weakened pathogens vaccination
basic of units of all living things cells
composed of one or more cells living things
Created by: poopoohead