Sunday, 26 February 2012

Cellular respiration

 
MITOCHONDRIA

This is the organelle that helps in cellular respiration by breaking down sugars and forning ATP(Adenosine triphosphate ) that cells use as energy. This involves in breaking down of food into simple molecules , this has four stages( aerobic cellular respiration). Here the glucose and oxygen react and breakdown to produce carbondioxide, water and ATP (energy).


Cell organelles

1. Nucleolus- makes ribosomes for protein synthesis and contains RNA strands.
2. Nucleas- is the brain of the cell, contains DNA, genes and chromosomes and controls all the processes of the cell.
3.Ribosome-synthesizes protein chains by reading RNA and tranlating it into amino acid sequence.
4.Cell membrane-provides protection, permeability,helps in transport of materials.
5. Rough endoplasmic reticulum-helps in protein synthesis.
6.Golgi body-collects , packages and transports moleclues produced in cell and modifies proteins and lipids.
7.Cytoskeleton-maintians cell shape and transport withing the cell within the vesicle and organelles.
8.Smooth endoplasmic reticulum-packages proteins, synthesixes lipids, fats and phospholids and deoxifies drugs in lives cells.
9.Mitochondria-produces ATP , is the power house of a cell.
10.Vacoule- stores the wastes of a cell (larger in plant cell) in solids or liquids.
11.Cytoplasm-contians all the cell organelles where the transports and absorbtion of the cell takes place.
12.Lysosome-breakdowns macromolecules and digets worn out cell components.
13.Centriole- helps in cell division, produces microtubules and helps in the positioning of cell organelles in the cell.