subcellular structures Flashcards
What are cells?
The smallest unit of life that can replicate independently
Are plant and animal cells multicellular or unicellular?
Multicellular(contains loads of cells)
function of cell membrane
Controls which substances can pass in and out of the cell
Function of nucleus
contains genetic material/DNA
What is cytoplasm
where chemical reactions take place (inside jelly-like substance)
Function of mitochondria
produces energy for the cell to survive and function
What are ribosomes
site of protein synthesis
function of rigid cell wall
structure and to support the cell
Function of permanent vacuole
contains cell sap (mixture of sugars, salt, water)
Function of chloroplasts
Where photosynthesis occurs and chlorophyll green colour
Which organelles only present in plant cells?(3)
cell wall
permanent vacuole
chloroplasts
Are bacteria cells eukaryotic or prokaryotic?
prokaryotic( does not contain nucleus)
What do bacteria cells lack?(3)
nucleus
chloroplast
mitochondria
Function of flagella
propel the bacteria
What are plasmids
extra genes for replicating DNA