cell biology Flashcards
(24 cards)
list animal cell parts
cell membrane
nucleus
mitochondria
ribosomes
cytoplasm
what do plant cells have that animal cells do not have
permanent vacuole
chloroplasts
cell wall
explain prokaryotic cell
single celled
no nucleus
small rings of DNA (plasmids)
smaller than eukaryotic
what are plasmids
rings of DNA
features of light microscope
uses light
living samples can be viewed
cheap
low magnification
low resolution
features of electron microscope
beam of electrons for image
no living samples
expensive
high magnification
high resolution
what is the function of the sperm cell
fertilise the ovum (egg)
what is the function of the red blood cell
transport oxygen around the body
what is the function of the muscle cell
contract and relax allowing movement
what is the function of the nerve cell
carry electrical impulses around the body
what is the function of the root hair cell
absorb mineral ions and water from soil
what is the function of the palisade cell
enable photosynthesis in the leaf
what are the adaptations of the sperm cell
tail to swim
lots of mitochondria
what are the adaptations of the red blood cell
no nucleus
red pigment
concave disk shape
what are the adaptations of the muscle cell
protein fibres
lots of mitochondria
what are the adaptations of the nerve cell
branched endings
myelin sheath
what are the adaptations of the root hair cell
large surface area
lots of mitochondria
what are the adaptations of the palisade cell
lots of chloroplasts
located at the top surface of the leaf
what type of cell are bacteria
prokaryotic
what is the function of the cell membrane
controls the movement of substances in and out of the cell
what is the function of mitochondria
site of respiration to transfer energy for the cell
what is the function of chloroplasts
absorb light energy for photosynthesis
what is the function of ribosomes
enable production of proteins (protein synthesis)
what is the function of the cell wall
strengthens and supports the cell wall
