Ch.4 Vocab

Smallest unit that can carry out all processes of life

Basic theory about the cellular nature of life (3 essential parts)

Membrane-bound organelle that contains cell's DNA

Organisms that lack a membrane-bound nucleus & membrane-bound organelles

Intracellular bodies that preform specific functions for the cell

Organisms made up of one or more cells that have a nucleus & membrane-bound organelles

Cells outer boundary (covers cell's surface & acts as a barrier between the inside & outside of a cell

Organelles made of protein & RNA that direct protein synthesis in the cytoplasm

Tiny organelles that transfer energy from organic molecules to ATP

2 short cylinders of microtubules at right angles to each other & are situated in the cytoplasm near the nuclear envelope

System of membranous tubes & sacs, called cisternae

Structures in the nucleus made of DNA & protein

Flattened, membranous sacs that directs proteins

Semipermeable membrane surrounding the cytoplasm of a cell

Firm, protective structure that gives the cell its shape in plants, fungi, most bacteria, and some protests