2.1 cell structure

• nucleus - control the cell & contain genetic material
• cytoplasm - where chemical reactions take place
• mitochondria - site of aerobic respiration
• cell membrane - controls what goes in and out
• cell wall - made of cellulose give support to the plant cell
• ribosomes - where protein synthesis takes place
• vacuole - contain cell sap, used for storage & also help support cell shape
• chloroplasts - contains chlorophyll and the site for photosynthesis
• plant cell: cell wall, chloroplasts, vacuole, nucleus, ribosomes, mitochondria, cytoplasm, cell membrane
• animal cell: nucleus, ribosomes, mitochondria, cytoplasm, cell membrane
• new cells are produced by division of existing cells
• cell: basic building block for organisms
• tissue: has many similar cells
• organ: made of different tissues to perform specific functions
• organ system: system containing organs with related functions to help the body function, together
• organism: living thing with organ systems
• ciliated cells - movement of mucus in the trachea and bronchi
• root hair cells - absorption. have increased surface area for absorption of water & minerals
• palisade mesophyll cells - for photosynthesis
• neurones - conduction of electrical impulses
• red blood cells - transport oxygen (they don't have a nucleus)
• sperm & egg/ovum cells (gametes) - for reproduction