Cell Review
Cytoplasm
• Holds organelles
• Where chemical reactions take place
• Located between the cell membrane and
nucleus
• Life function = transport
• Semi liquid substance
Nucleus
• Control center for cell metabolism and
reproduction
• Located in the cytoplasm
• Regulation and Reproduction
• Contains chromosomes, genes and
nucleoli (ribosome production)
Cell Membrane
(plasma membrane)
• Controls movement of substances into and
out of the cell
• Surrounds the cell in both plant and animal
cells
Cell Membrane
• It is selectively permeable (allows some
materials in but keeps some out)
Cell membrane
•Is made of a double lipid
layer with large protein
molecules
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Endoplasmic Reticulum
Surface area for chemical reactions
Transport of materials
Smooth ER does not have ribosomes
Rough ER has ribosomes
Ribosomes
• Where protein synthesis occurs (proteins are
produced from amino acids)
• Are found in the cytoplasm and with the ER
Ribosomes and Protein
Synthesis
Lysosomes
• Contain hydrolytic (digestive) enzymes
• Located in the cytoplasm
• In single celled organisms used for
digestion
• In multicellular organisms used to break
down worn out organelles
Golgi Bodies
• Processing, packaging and storage center
for cell products
Centriole
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Helps with cell division
Located near the nucleus
Cell reproduction
Found in animal cells but not in plant cells
Mitochondria
• Site of cellular respiration (energy
production)
• Energy is released from food molecules
• “Power House” of the cell
• Some cells have more mitochondria than
others (ex: muscle cells)
Chloroplast
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The site of photosynthesis
Where food is made in a plant
Chlorophyll makes them green
Found in plant cells but not in animal cells
Cell Wall
• Gives plant cells shape
and protection
• Located outside the
cell membrane
• Is a non-living structure made of cellulose
Vacuole
• Storage sites for water , dissolved
materials and wastes
• Large in plant cells
• Single celled organisms have food
vacuoles for food digestion and contractile
vacuoles for removing excess water