biotech u2: microscopes & cells

mitochondria

• site of cellular respiration

• variable in cell

chloroplast

• site of photosynthesis

• variable in cell

• only in plant cells

nucleus

• contains genetic material, produces DNA & mRNA

• cytoplasm

• only in eukaryotic cells

(plasma) cell membrane

• barrier that determines what enters and leaves the cell

• surrounding the cell

cell wall

• provides protection and cell shape for plant/fungal cells

• outside of cell membrane

• only in plant & bacteria cells

ribosome

• assembly site for proteins

• often attached to rough ER

rough ER

• has ribosomes attached on its surface

• functions to transport proteins throughout the cell

• cytoplasm next to nucleus

golgi apparatus

• modifies, packages proteins for transport (also involved w/ transport of lipids)

• cytoplasm near smooth ER

lysosome

• sac like, contains digestive enzymes to clean up cell

• cytoplasm

nucleolus

• responsible for producing ribosomes

• inside nucleus