Organelles 2
Terms
undefined, object
copy deck
- Cell Membrane
- Porous; protects cell, allows things in and out selectively.
- Cytoplasm
- soupy liquid; All other organelles float here
- Nucleus
- porous nuclear membrane; communicates with surrounding cytosol
- DNA
- In nucleus; contains genetic info., passed from parents to offspring, copied and put into new cells when they produce
- Nucleolus
- In nucleus; produces ribosomes
- Chloroplasts
- fluid called stroma, stacks of disks; site pf photosynthesis
- Mitochondria
- In inner membrane called cristae; Use oxygen to make ATP, process is aerobic respiration: very abundant in cells that need lots of energy
- Vacuoles
- small containers; single membrane surrounding solid/liquid, can contain different substances
- Endoplasmic Reticulum
- Network of canals that extend from cell membrane to nucleus; transports materials, two kinds: rough/smooth, smooth has no ribosomes
- Ribosomes
- small, dot-like, made up of RNA; site of protein synthesis, form rough ER
- Golgi Body
- sacs stacked like pancakes, vesicles pinch off edges; shipping dept., modifies proteins, lipids. Packages materials for export
- Vesicles
- liquid filled sac; shipping containers w/cells. Used for movement/export, filled with many substances.
- Lysosomes
- liquid filled sacs; contain digestive enzymes, break down complex molecules, can digest substances brought into cell and actual cell parts
- Centrioles
- short microtubes arranged in a cylinder; cell division
- Cytoskeleton
- skeleton; helps maintain structure, movement of cell organelles within the cell