Unit 4 - Cells Vocab Flashcards
Cell
The basic unit of life
Unicellular
Made of only one cell
Multicellular
Made of many cells
Prokaryotic Cells
Simple organisms without a nucleus
Eukaryotic cells
Cells that contain a nucleus and membrane bound organelles
Membrane bound
Organelle is surrounded by/contained in a membrane
Autotroph
An organism that has the ability to make its own food
Heterotroph
An organism that must obtain its food from another source
Total magnification
The total calculation of zoom on a microscope (ocular x objective)
Ocular lens
The eyepiece on a microscope, has a power of 10x magnification
Objective Lens
The rotating power objective lens on a microscope (4x, 10x, 40x)
Organelle
A tiny part of a cell that carries out a specific function
Ribosomes
An organelle that synthesizes proteins
Cytoplasm
Jelly-like substance that fills the cell and protects the organelles; site of cellular respiration
Cell membrane
Boundary that surrounds all cells and determines what enters and exits