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BioChpt.4

auricchio4

QuestionAnswer
cell Smallest unit that can carry all life's processes.
Anton Leeuwenhoek First person to observe living cells
Cell shape reflects different functions of a cell
Surface area-to-volume ratio limit cell size, is the relation of cell's outer surface to it's volume
cytoplasm includes all organelles except the nucleus
nucleus directs activity in a cell holds it's DNA
prokaryotes organisms that do not have membrane-bound organelles or a nucleus
eukaryotes large organisms with a nucleus and membrane bound organelles
nucleiod holds a prokaryote's DNA
tissue group of alike cells, carry out a cetain function
organization of multicellular organisms cells-->tissue-->organs-->organ system
phospholipid bilayer phospholipds lined up so the heads point towards the water and the tails point away
fluid mosaic model states that the phospholipid bilayer acts more like a liquid than a solid
mitchondria produce energy in the form of ATP
ATP powers most of a cell's chemicals reactions
ribosomes build protein (protein synthesis)
Endoplasmic Reticulum series of tunnels that products are transferred in
Rough ER covered in ribosomes, produces phospholipids and proteins
Smooth ER builds lipids, like cholestrol
Golgi apparatus processes and packages proteins
Vesicles classified by their contents
nucleolus denser part of a nucleus, in which DNA makes ribsomal RNA
plasma membrane seperates inside and outside of cell
lysosomes hold digestive molecules
Cytoskeleton made up of micotubules and microfilaments
Centrioles occur only in animal cells
plastids surrounded by a double membrane, have their own DNA
cilia and flagella structures that assist in movement
cell wall only in a plant cell, covers the cell membrane
cellulose a carbohydrate that helps make the cell wall
central vacuole stores water,waste and other material
chloroplasts converts light energy to chemical energy by photosynthesis
Created by: caitlinc
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