Science - cell structure, transport in cellslevels of organisation Flashcards
fuction of cytoplasm
contains dissolved nutrients, salts and organelles
site of chemical reactions
function of nucleus
stores genetic material (DNA)
controls the cell
Function of cell membrane
controls movement of substances in and out of cells
function of mitochondria
Site of aerobic respiration
Function of ribosomes
site of protein synthesis
function of chloroplasts
site of photosynthesis
contains chlorophyll
function of cell wall
strengthens cell, supports plant
made of cellulose
function of Permanent vacuole
Keeps cell turgid, filled will cell sap
What 3 things does a plant cell have that animal cells don’t
chloroplast, permanent vacuole, cell wall
diffusion
passive movement of particles from an area of high to low concentration
osmosis
movement of water molecules from dilute to concentrated solution through a partially permeable membrane
active transport
movement of particles from low to high concentration
require energy as it goes against concentration gradient
cell
the basic building blocks of all organisms
tissue
group of similar cells working together to perform a function
organ
group of tissues working together to perform a function