cells Flashcards
specialized cell
cell that can perform specific function
red blood cells
hemoglobin carries O2 in blood, cells smooth easily pass through blood vessels
skin cells
layers of cells tightly together covers outside body protects cells inside reduces water loss
bone cells
collect calcium from food allows growth and repair of bones, build up bone around themselves = bodys skeleton
muscle cells
arranged in bundles (muscle fibres), contracts, fibre gets shorter, bones move
white blood cells
can move like amoeba to engulf(eat) bacteria fight infection
sperm cells
moved independently, carries dna from male to join w egg cell from female
fat cells
have large vacuole to store fat molecules this is how it stores chem energy
nerve cells
long thin many branches, conduct elec impulses to coordinate body activity
photophores
some animals active at night or ones in deep ocean emit light (photophores)
plant cells
some plant cells transport water, dissolved minerals through plant, other cells transport dissolved sugar
storage cells
special structures store starch, source of energy for plant
photosynthetic cells
has many chloroplasts to collect energy from sun to make sugar for plant
epidermal cells
cells on young roots have hair that aborb water from soil
guard cells
on surface of leaves to control water loss
