b2 Flashcards
(23 cards)
mitochondria
site of aerobic respiration,provide energy for the cell
ribosome
site of protein production in protein synthesis
cell theory
-all organism has one or more cell
-the cell is the basic organisational of life
-all cells are from pre-existing cells
cell membrane
-contains cytoplasm
-control the entry of and exit of substances
nucleus
control all activity inside the cell
-contains genetic material(DNA)
cytoplasm
-water based gell which fill the cell and contain cell structure
-site of chemical reaction
glycogen/granules
-carbrohydrate
-energy/food storage
vacuole
contains water/salts and keep the cell firm
supports the plants/
cell wall
gives support and protection to cell,movement of substance in and out of cell
prevent cell burst
chloroplast
contain chlorphy which absorb light energy
site of phtosynthesis
starch grains
food/carbohydrate store
plasmid
provide genetic variation to bateria
sperm cell
flegelum,nucleus,lots of mitochondria,acrosome(contains digestive enzyme
egg cell
cell membrane,large cytoplasm,nucleus
cell
basic orgnistional of life
tissue
a group of similar cell
organs
a group of different tissue
organ system
many organ carry out function
orgnism
consist of all organ system working together
magnification
measured lenght divided by actual lenght
active transport
movement of particle through a partially permeable membrane from a region of lower concentration to higher concentraton
diffusion
the movement of particle from higher to lowr concentrtion region until it spread out
4 factors that affect diffusion
surface area
temperature
distance
concentration gradient
