LESSON 3 Flashcards
simple, unicellular organisms that do not have a nucleus and membrane-bound organelles
prokaryotes
"pro" - ___ + "karyon" - _____
before - kernel or nut
most of its DNA is found in what is known as the nucleoid region
prokaryotes
most of its DNA is found in what is known as the _____
nucleoid region
"eu" - _____ + "karyon" - kernel or nut
good, well or true
organisms whose cell has a nucleus enclosed by a membrane other organelles are also bound by membranes
eukaryotes
smaller; unicellular
prokaryotes
archaea bacteria
prokaryotes
absent nucleus
prokaryotes
absent organelles
prokaryotes
present cell wall which is chemically complex
prokaryotes
no sexual reproduction
prokaryotes
DNA transfer thru conjugation
prokaryotes
cell division is thru binary fission
prokaryotes
circular haploid
prokaryotes
larger unicellular and multicellular
eukaryotes
plants fungi protists animals
eukaryotes
present nucleus and organelles
eukaryotes
cell wall found only in plants and is simple
eukaryotes
sexual reproduction thru meiosis
eukaryotes
cell division thru mitosis
eukaryotes
linear diploid
eukaryotes
also known as cell differentiation.
cell Specialization
It is the process by which generic cells change to different types of cells to be able to perform special or specific functions.
cell Specialization
carry O2 throughout the body
red blood cells
no nucleus
biconcave shape
contains hemoglobin
red blood cells
plays an important role in the immune system
white blood cells
irregular shape
can produce antibodies and antitoxins
white blood cells
ferfice an
egg cell to
make a
baby
sperm cells
long fail to swinm
numerous mitochondria
with chemicals on the head for egg cell entry
sperm cells
carries genetic material
egg cell
large and bulky
a chemical change in the mombrane prevents farization at more than one sperm
egg cell
carry nerve impulses through the body
nerve cell or neuron
long, thin axon branching dendrites
myelinated
nerve cell or neuron
facilitate movement
muscle cell
elongated and ellastic
numerous nitochondria
muscle cell
regulates rate of transpiration
guard cells
cell wall has varying thickness
guard cell
absorbs water and minerals from the soil
root hair cell
long and thin
with large surface area
root hair cell
produces food through the
process of photosynthesis
photosynthetic cells
contains numerous chloroplasts
photosynthetic cells
transport water and minerals from the roots to other parts of the plant
xylem vessels
has ligin
no protoplasm
cells from continuous tube
xylem vessels
adaptations or changes lacquired by the cell after cell division that aids the cell in various beneficial ways.
cell modifications
hair-like organelles extending from the cell surface
cilia
Non-motile or primary cilia (___)
Motile (____)
(sensory)
(movement)
long, whip-like, tail-like structures made of protein filaments
aids in movement
flagella
"false feet"
pseudopods
temporary extension of the cytoplasm
movement and ingestion (phagocytosis
pseudopods
