Chapter 3 - Plant Cells Flashcards
It is a theory that the cell is the basic unit of life, of which all living things are composed, and that all cells are derived from preexisting cells.
Cell Theory
A cell that posses a nucleus and other membrane-bound organelles.
Eukaryotic Cell
A cell that lacks nuclei and other membrane-bound organelles.
Prokaryotic Cell
It is the living surface membrane of a cell, and acts as a selective barrier to passage of materials into and out of the cell.
Plasma Membrane
A cellular organelle that contains DNA and serves as control center of the cell.
Nucleus
A group of membrane-bound organelles occurring in photosynthetic eukaryotic cells.
Plastid
It is the site of photosynthesis.
Chloroplast
An intracellular organelle associated with cellular respiration.
Mitochondrion
A cellular organelle; site of protein synthesis.
Ribosome
An organelle composed of an interconnected network of internal membranes within eukaryotic cells.
Endoplasmic Reticulum
Type of ER that is associated with ribosomes.
Rough ER
Type of ER that lacks ribosomes.
Smooth ER
An organelle composed of a stack of flattened membranous sacs.
Golgi Body
An organelle that modifies, packages, and sorts proteins that will be secreted or sent to the plasma membrane or other organelles.
Golgi Body
A large, fluid-filled. membrane-bound sac within the cytoplasm that contains a solution of salts, ions, pigments, and waste materials.
Vacuole
It is composed of microtubules and microfilaments; it maintains the cell’s shape; involved in cellular movement.
Cytoskeleton
It is comparatively rigid supporting exterior to the plasma membrane in plants, fungi, prokaryotes, certain protist.
Cell Wall
These are specialized channels that is responsible for communication between plant cells.
Plasmodesmata
Organelles found in plant cells, but not found in animal cells?
Plastids, Cell walls, Large Vacuoles
Organelles found in animal cells, but not found in plant cells?
Centrioles, Lysosomes
The current model for the structure of the plasma membrane.
Fluid Mosaic Model
Nonpolar, _____ fatty acid chains of phospholipids project into interior of the double-layered membrane.
Hydrophobic
Polar, _____ located on two surfaces of the double-layered membrane.
Hydrophilic heads
It is a net movement of particles along a concentration gradient from an area of higher concentration to an area of lower concentration.
Diffusion
It is the net movement of water by diffusion through a selectively permeable membrane.
Osmosis
It is where a carrier protein helps move a material across a membrane in the direction of the concentration gradient, from high to low concentration.
Facilitated Diffusion
It is when energy is expended to move a material against the concentration gradient, from low to high concentration.
Active Transport
