PARTS OF THE CELL Flashcards
the smallest unit of an organism that carries on the functions of life
Cell
A_____ can perform all the processes of life.
cell
up to a meter long
nerve cells
dot of an i
human egg cell
80,000 could fit in the dot of an i
bacteria
very simple; no
membrane-bound structures
Prokaryotic cell
more advanced; has
membrane-bound structures
Eukaryotic cell
ex: animal cells, plant cells)
Eukaryotic cell
ex: bacteria
Prokaryotic cell
Outer boundary of the cell
Cell Membrane
Double lipid membrane
Cell Membrane
Selectively permeable
Cell Membrane
Protects inside
Cell Membrane
Supports/gives shape
Cell Membrane
Controls what enters/leaves - “gatekeeper”
Cell Membrane
Helps maintain homeostasis (ability to keep a stable environment)
Cell Membrane
ANALOGY OF CELL MEMBRANE
Townline
ONLY IN PLANTS
Cell Wall
Made of cellulose
Cell Wall
Strong & rigid
Cell Wall
Dead layer
Cell Wall
Protects/support
Cell Wall
Gives shape
Cell Wall
Analogy of cell wall
Castle Wall
Jelly-like substance
Cytoplasm
80% water
Cytoplasm
Organelles float in _______
cytoplasm
Materials for growth are found in _____
cytoplasm
Expels waste through cell membrane
Cytoplasm
Analogy of Cytoplasm
Town property
Surrounded by nuclear membrane
Nucleus
Usually round/oval
Nucleus
Near center
Nucleus
Control center of cell
Nucleus
Controls cell activities
Nucleus
Contains chromosomes
Nucleus
Analogy of Nucleus
Mayor and city council
Has an outer membrane and an inner folded membrane
Mitochondria
Rod shaped
Mitochondria
Cellular respiration
Mitochondria
Turns food into useable energy (ATP)
Mitochondria
analogy of Mitochondria
Power house (powerplant)
Tiny, round, dark
Ribosomes
Can be free floating or attached to endoplasmic reticulum
Ribosomes
Protein factories
Ribosomes
Assembles proteins used in growth, repair and control
Ribosomes
analogy of Ribosomes
Factory
Network of tubes and canals
Endoplasmic Reticulum
no ribosomes attached
Smooth ER
ribosomes are attached
Rough ER
Transports materials “intracellular highway”
Endoplasmic Reticulum
analogy of Endoplasmic Reticulum
Roads and highways
Series of flattened sacs
Golgi Bodies
Processes, packages and secretes material
Golgi Bodies
Materials that are transported by the ER usually stop first at the _____where they are stored or altered before moving to other parts of the cell
Golgi Bodies
analogy of Golgi Bodies
Center for Manufacturing and shipping (UPS)
ONLY IN ANIMALS
Lysosomes
Contains powerful digestive chemicals
Lysosomes
Contains digestive enzymes (chemicals), breaks things down
Lysosomes
“suicide sac”
Lysosomes
analogy of Lysosomes
Garbage collectors
Fluid-filled sacs that float in the cytoplasm
Vacuoles
Stores water and food materials
Vacuoles
Stores waste and helps the cell get rid of waste
Vacuoles
Plant cells contain a large central ______- filled with water - helps give shape
Vacuoles
analogy of Vacuoles
Storage warehouse
ONLY IN PLANT CELLS
Chloroplast
Green, oval-shaped
Chloroplast
Contains green pigment chlorophyll
Chloroplast
Site of photosynthesis
Chloroplast
Traps the sun’s energy to make glucose
Chloroplast
analogy of Chloroplast
Greenhouse or solar cell
Have cell walls,
chloroplasts,
large vacuoles
PLANT CELLS
Have lysosomes
ANIMAL CELLS
: Rigid cell walls allow plants to grow upright.
plant cells
Have large quantities of mitochondria for energy.
Muscle Cells
Thin, flexible discs allow them to squeeze through tiny blood vessels.
Red Blood Cells
Have long projections through which messages are sent throughout the body.
nerve cells