Unit 7 Flashcards
Cell
The smallest unit of life
Organelles
Specialized subunits of a cell that have specific jobs
Prokaryotes
Cells that do not have a nucleus (bacteria, archaea)
Eukaryotes
Cells that do have a nucleus (plants, animals, fungi, protists)
Cytoplasm
The fluid inside the cell membrane that contains all organelles.
Pili
Tiny hairs on prokaryotes that help cell move and reproduce.
Ribosomes
Round structures where proteins are made
Flagellum
Tail-like structure that aids in mobility
Nucleus
Contains the genetic material of the cell as well as the nucleolus.
Nucleolus
Structure inside the nucleus that manufactures ribosomes, the cell’s protein-producing structures.
Nuclear Envelope
Double-layered membrane that encloses the contents of the nucleus during most of the cell’s life cycle.
Nuclear Pores
Small holes within the nuclear envelope that regulate the passage of molecules between the nucleus and cytoplasm
Endoplasmic Reticulum
A transport system that extends from the nucleus and Moves materials around the cell. (Can be smooth or rough depending on if it contains ribosomes.)
Smooth ER
Contains no ribosomes and helps detoxify the cell and create lipids.
Rough ER
Studded with ribosomes…aid in protein production and transport