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unit 3

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Robert Hooke

Back (Answer)

English physicist; first to call them “cells”

#2
Front (Question)

cell theory

Back (Answer)

• all organisms are made of one or more cells • the cell is the fundamental unit of all life • all cells come from preexisting cells

#3
Front (Question)

All cells have these in common

Back (Answer)

DNA (genetic information) RNA (code for protein production) Ribosomes (protein manufacturer) Cytoplasm (fluid in cells) Cell Membrane (cell boundary)

#4
Front (Question)

prokarotes

Back (Answer)

a cell that lacks a nucleus and other membrane-bound organelles

#5
Front (Question)

eukarotes

Back (Answer)

organism composed of one or more cells containing a nucleus and the other membrane-bounded organelles

#6
Front (Question)

Domain Bacteria

Back (Answer)

bacteria are the most abundant and diverse organisms on Earth (prokaryotic)

#7
Front (Question)

Nucleoid (domain bacteria)

Back (Answer)

the area where the cell’s circular DNA molecule congregates

#8
Front (Question)

Cell Wall (domain bacteria)

Back (Answer)

a rigid boundary surrounding a cell

#9
Front (Question)

flagella (domain bacteria)

Back (Answer)

tail-like appendages that enable cells to move

#10
Front (Question)

Domain Archaea

Back (Answer)

Prokaryotic exteremophiles (lives is extreme environments, but some do live in normal environments)

#11
Front (Question)

Domain Eukarya

Back (Answer)

includes all Eukaryotes (humans, plants, fungi, protists, etc.) nucleus, organelles, 10-100 times the size of bacteria

#12
Front (Question)

nucleus

Back (Answer)

membrane-bounded sac that contains DNA

#13
Front (Question)

organelles

Back (Answer)

compartment in eukaryotic cell that performs a specialized function

#14
Front (Question)

Animal Cells

Back (Answer)

nucleus (nuclear pore, nuclear envelope, DNA , nucleolus) centrosome centriole peroxisome cytoskeleton (microtubule, intermediate filament, microfilament) mitochondrion smooth endoplasmic reticulum golgi apparatus cytoplasm (all cell contents except nucleus) ctosol lsosome cell membrane rough endoplasmic reticulum ribosomes

#15
Front (Question)

Plant Cell

Back (Answer)

nucleus (nuclear pore, nuclear envelope, DNA, nucleolus) ribosomes golgi apparatus mitochondrion cytoplasm (all cell contents except nucleus) cytosol central vacuole ctoskeleton (intermediate filament, microfilament, microtubule) plasmodesma cell mebrane cell wall peroxisome smooth endoplasmic reticulum chloroplast rough endoplasmic reticulum

#16
Front (Question)

all cells

Back (Answer)

have a cell membrane

#17
Front (Question)

phospholipid

Back (Answer)

molecule consisting of two hydrophobic fatty acids and a hydrophilic phosphate group

#18
Front (Question)

phopholipid bilayer

Back (Answer)

a double layer of phospholipids that forms in water

#19
Front (Question)

fluid mosaic

Back (Answer)

two-dimensional structure of moveable phospholipids and proteins that form biological membranes

#20
Front (Question)

in the cell membrane (proteins are very important to the function of a membrane)

Back (Answer)

transport proteins (passageways) enzymes (facilitate chemical reactions) recognition proteins (name tags) adhesion proteins (cells can stick to one another) receptor proteins (bind to a molecule outside of the cell to trigger a reaction inside)

#21
Front (Question)

endomembrane sstem

Back (Answer)

organelles that exchange materials in transport vesicles

#22
Front (Question)

vesicle

Back (Answer)

a membrane-bounded sac that transports materials in a cell

#23
Front (Question)

nucleus (command center of cell)

Back (Answer)

the membrane-bound sac that contains DNA in an eukaryotic cell

#24
Front (Question)

nuclear pores

Back (Answer)

a hole in the nuclear envelope. allows material in and out.