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Unit 3 Ch 7 Cells

Cell structures and fluid movement

QuestionAnswer
Active type of transport that requires energy
Hypotonic when a solution has less concentration of solutes
Passive type of transport that does not require energy
Endo prefix meaning “inside”
Diffusion movement of molecules from high to low concentration
Water a molecule composed of two hydrogen and one oxygen
Isotonic a solution that has equal amount of solutes
Permeable membranes that let some things through, called selectively _____
Homeostasis the maintaining of internal balance
Gradient a difference in concentration creates a concentration _____
DynamicEquilibrium condition achieved when molecules are evenly spaced in an area and still moving
Hypertonic when a solution has a greater concentration of solutes
Endocytosis engulfing of large particles into the cell
Exo prefix meaning “outside”
Osmosis diffusion of water
ChannelProtein helps move things across the membrane
Contractile organelle that helps remove excess water; _____ vacuole
Membrane outer boundary of a cell
Facilitated a form of passive transport where a channel lets a molecule flow down its concentration gradient through a membrane; _____ diffusion
RoughER A highly folded membrane that is the site of protein and lipid synthesis
CellMembrane lipid bilayer surrounding cell, regulating what enters and exits the cell
Cytoskeleton A framework for the cell within the cytoplasm to help the cell and its internal parts move
Mitochondria Membrane-bound organelle that makes energy available to the rest of the cell
Flagella Long projection from cell surface which aids in locomotion and feeding; usually 1 or 2
Cilia Short projection from cell surface that aid in locomotion and feeding.
Golgi Flattened stack of tubular membranes that modify, sort and package proteins and other substances into vesicles for distribution.
Nucleus Control center of the cell that contains coded directions for the production of proteins and cell division
Chloroplast Double membraned organelle which converts sunlight, water and carbon dioxide into glucose
Prokaryotes Single-celled organisms without membrane bound organelles or nucleus
Centrioles Paired organelles that are important for cell division; located near nucleus
Ribosome synthesize proteins
Lysosome Vesicle that contains digestive enzymes for the breakdown of excess or worn-out cellular substances
CellWall Inflexible barrier providing protection and structure in plants
Eukaryotes cells containing membrane bound organelles
Nucleolus site in nucleus of ribosome production
Respiration burning of sugar with oxygen to yield carbon dioxide and water
Photosynthesis conversion of sunlight, water and carbon dioxide into sugar
Phospholipidbilayer double layer separating inside from outside
Cell smallest unit of life known to science
Vesicle sac for transporting proteins and chemicals both within and to the cell membrane for release by the cell
SmoothER Lipid and Carbohydrate synthesis as well as detoxification in Liver
LargeCentralVacuole large central storage place found in plants only; helps plants stand tall
Created by: mrbstp