Chapter 3 Pt. 1 Flashcards
What is Cell Theory?
a fundamental organizing principle of biology that guides the way biologists think about living things
Cell Theory states that a ____ is the smallest unit of life
cell
Cell Theory states that ____ make up all living things (unicellular & multicellular)
cells
Cell Theory states that ____ cells can arise only from ________ cells
new
preexisting
What are the two types of cells?
Prokaryotic Cells
Eukaryotic Cells
Which type of cell is this: structurally simple and typically smaller
Prokaryotic Cells
Which type of cell is this:
most are surrounded by a rigid cell wall
Prokaryotic Cells
__________ Cells lack organelles
Prokaryotic
Prokaryotic Cells are limited to ________ and _______
bacteria
archaea
What is archaea?
include species that inhabit extreme environments
___________ Cells possess organelles
Eukaryotic
What is an organelle?
a component within a cell that carries out specific functions
Organelles are also known as “______ _______”
“little organ”
Which type of cel is this:
membrane bound organelles
Eukaryotic Cells
What is the DNA formation of in prokaryotic and eukaryotic cells?
prokaryotic-circular
eukaryotic- coiled, linear strands
Where is the DNA located in prokaryotic and eukaryotic cells?
Prokaryotic- cytoplasm
Eukaryotic-Nucleus
True or False: The cytoskeleton is present in both prokaryotic and eukaryotic cells.
True
List the organelles located in eukaryotic cells.
plasma membrane cytoplasm lysosome mitochondrion nucleus nucleolus ribosome rough endoplasmic reticulum smooth endoplasmic reticulum Golgi complex microfilament microtubule centrioles
Which eukaryotic organelle is this:
regulates movement of materials into and out of cell
plasma membrane
Which eukaryotic organelle is this:
the material surrounding the nucleus
cytoplasm
Which eukaryotic organelle is this:
digests substances brought into cell and destroys old parts of cells
lysosome
Which eukaryotic organelle is this:
provides cell with energy though the breakdown of glucose during cellular respiration
mitochondrion
Which eukaryotic organelle is this:
contains DNA and controls cellular activity
nucleus
Which eukaryotic organelle is this:
produces components of ribosomes (RNA and proteins)
nucleolus
Which eukaryotic organelle is this:
site where protein synthesis begins
ribosome
Which eukaryotic organelle is this:
studded with ribosomes and produces membrane
rough endoplasmic reticulum
Which eukaryotic organelle is this:
detoxifies drugs and produces membrane
smooth endoplasmic reticulum
Which eukaryotic organelle is this:
sorts, modifies, and packages proteins
Golgi complex
Which eukaryotic organelle is this:
plays a role in muscle contraction and cell division
microfilament
Which eukaryotic organelle is this:
maintains cell shape and forms tracks on which vesicles move
microtubule
Which eukaryotic organelle is this:
may function in cell division
centrioles
