Chapter 7 Vocab Flashcards
Nucleus
A large structure that contains the cells genetic material and controls the cells activities
Cells
Basic unit of all forms of life
Cytoplasm
The material inside the cells membrane not including the nucleus
Prokaryotes
Have a cell membrane and cytoplasm but do not contain nuclei
Eukaryotes
Do you contain a nuclei
Organelle
Specialized structures that perform important cellular functions
Diffusion
Molecules move from an area where they are more concentrated to an area where there are less concentrated
Selectively permeable
Most substances can pass across them and others cannot
Osmosis
Allows water molecules to pass easily through biological membranes
Active transport
The material moves from an area of lower concentration to an area of greater concentration
Exocytolysis
Removal of large amounts of material from the cell
Tissue
A group of similar cells that perform a particular function
Organ
Many groups of tissues that work together
