parts of cell + microscope + leaf & cells and systems vocab Flashcards
cell
smallest unit that can perform functions of life
nucleus (cell)
in a cell
organelle that controls all of cells activities
organelle (cell)
structure within a cell that has a pecific function
vacuole (cell)
balloon like, fluid filled organelle
stores food, waste or other materials
artery
blood vessel that carries oxygen rich blood from heart
semi permeable membrane (cell and leaf)
membrane allowing only certain materials to go in and out
diffusion
movement of particles inliquids and/or gasses that move from high conc. to low conc.
tissue
group of cells with same structure and function
capillaries
smallest type of blood vessel
conncets arterys and veins
cell membrane and cell wall (cell)
cell membrane
- selectivly permeable
- enclosing contents of cell
- regulates the passage of substances in and out of the cell
cell wall
- rigid structure surrounding cell (plant, fungi or unicellular)
- surrounds the cell membrane
chloroplast (cell)
an organelle that contains chlorophyll snd enables plants to make carbohydrates
photosynthesis occurs here
(inplants and some unicellular organisms)
vein
blood vessel that carries blood back to the heart
villus
fingerlike projection on the inner lining of the small intestine
osmosis
diffusion of a solvent (usually water) througha selectivley permeable membrane
organ
group of different tissues that work together to perform a specific function
alveoli
in the lungs a tiny air sac at the end of a bronchiole
cytoplasm (cell)
jelly like and constantly moving
distribute oxygen
mitochondria (cell)
power house of cell
makes APT energy
nucleolus (cell)
makes ribosomes
ribosomes (cell)
make protein
ER (cell)
carries protein around cell
lysosomes (cell)
breakdown and recycle waster materials
golgi apparatus (cell)
packages and sorts materials
cuticle (leaf)
waxy outer layer of leaf
prevents water loss
epidermis (leaf)
under cuticle
outermost layer of cells
xylem (leaf)
transports water
phloem (leaf)
transports sugar/food
bundle sheath cells (leaf)
create a circle around xylem and phloem
palisade layer (leaf)
part of mesophyll
collum like cells underneath epidermis
spongy cells (leaf)
part of mesophyll
loosely packedbetween palisade layer and lower epidermis
air spaces allow for gas exchange
mesophyll (leaf)
packed with chloroplasts and this is where photosynthesis occurs
gaurd cells (leaf)
surround stomata (holes in epidermis)
shaped like 2 cupped hands
if full of water they open and if dry then close
body tube (microscope)
holds eye piece at proper distance
ocular lense (microscope)
piece u look through
revolving nose piece (microscope)
holds objective lenses
arm (microscope)
holds lenses above stage
objective lenses (microscope)
maginfies with diff intensities
stage (microscope)
platform that holds slides
stage clips (microscope)
hold slides in place
course adjustment knob (microscope)
moves stage up and downrapidly
diaphram (microscope)
opens and closes to control amount of light
fine adjustment knob (microscope)
focuses on fine details
light source (microscope)
shines through slide to let us see details
base (microscope)
supports microscope
