Cheatography
https://cheatography.com
this might help you to crack science olympiad
This is a draft cheat sheet. It is a work in progress and is not finished yet.
what is cell
all organisma are made up of cell that is the structural, functional and dundamental unit of life |
Robert Hooke in 1665 discovered the cellula from dead cork |
types of cells
cells are of two types |
prokaryotic cells: they are primitive cells that lacks nucleus |
eukaryotic cells: they are modified cells that have nucleus |
components of prokaryots
plasma membrane is made up of lipid bilayer |
mesosomes are infoldings in cell memb. that helps in respiration dna replication and metabolic activities |
nucleoid is loose genetic material that is present in cytoplasm |
ribosomes are protiein synthetic unit that are od 70& type in pro. cells |
glycolyx is a protective capsule around cells |
polysomes are many ribosomes together on Mrna |
pili is reproductive unit of cell |
flagella is for locomotion |
cell wall of prokarots
it is made of peptidoglycan that is a hetropolysachride |
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cell theory
all cells comes from pre existing cells |
omnis cellula e cellula |
neuron, heart cells, muscle cells do not divide |
RBC do not have nucleus |
virus is not considered living |
fluid mosaic model
referred as icebergs in sea |
given by singer and nicolson in 1972 |
made of lipids and protein |
protein is peripheral that is partially embeded in plasma membrane and integral that is trans membrane protein |
lipids are phospholipids that is made of head and tail the head is hydrophilic and tail is hydrophobioxc |
fluid mosaic model
referred as icebergs in sea |
given by singer and nicolson in 1972 |
made of lipids and protein |
protein is peripheral that is partially embeded in plasma membrane and integral that is trans membrane protein |
lipids are phospholipids that is made of head and tail the head is hydrophilic and tail is hydrophobioxc |
fluid mosaic model
referred as icebergs in sea |
given by singer and nicolson in 1972 |
made of lipids and protein |
protein is peripheral that is partially embeded in plasma membrane and integral that is trans membrane protein |
lipids are phospholipids that is made of head and tail the head is hydrophilic and tail is hydrophobioxc |
fluid mosaic model
referred as icebergs in sea |
given by singer and nicolson in 1972 |
made of lipids and protein |
protein is peripheral that is partially embeded in plasma membrane and integral that is trans membrane protein |
lipids are phospholipids that is made of head and tail the head is hydrophilic and tail is hydrophobioxc |
fluid mosaic model
referred as icebergs in sea |
given by singer and nicolson in 1972 |
made of lipids and protein |
protein is peripheral that is partially embeded in plasma membrane and integral that is trans membrane protein |
lipids are phospholipids that is made of head and tail the head is hydrophilic and tail is hydrophobioxc |
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