The Cell System

These flashcards cover key concepts related to the structure and function of cells as discussed in the lecture notes.

Cell

The smallest unit of life.

Unicellular

Organisms that are made up of only ONE cell.

Multicellular

Organisms that are made up of MANY cells

Specialized cells

Cells that look and act differently because they have a specific job.

Tissues

specialized cells that work together to get jobs done faster and more efficiently

Organs

tissues working together to perform a specific job.

Organ systems

organs working together to perform particular jobs/ functions.

Cell membrane

controls what enters and leaves the cell (gatekeeper)

Cytoplasm

jelly-like substance that holds all of the other organelles

Organelles

tiny parts inside a cell

Mitochondria

powerhouse of the cell - performs cellular respiration

Lysosome

cleans and digests food within a cell. only in animal cells

Chloroplast

site of photosynthesis.  only in plant cells

Nucleus

control center of the cell

cell wall

provides structure & support. only in plant cells