cell structure Flashcards
2.2 - 2.6B
2.2 cells are separated from their surrounding environment by
a cell membrane
2.2 within the cell membrane is the
cytoplasm
2.2 eukaryotic cells have … contained within their cytoplasm
organelles
2.2 organelles are
where specific processes take place within the cell
2.2 what is in the cytoplasm of a eukaryotic cell
nucleus, mitochondria & ribosomes
2.2 plant cells contain the following additional structures
cell wall, chloroplasts & a vacuole
2.3 function of the nucleus
contains genetic material in chromosomes
controls cell division
2.3 function of the cytoplasm
supports cell structure
site of many chemical reactions
contains water and many solutes
jelly-like substance
2.3 function of the cell membrane
holds the cell together
controls substances entering and leaving the cell
2.3 function of the cell wall
gives the cell extra support and defines its shape
2.3 function of the mitochondria
site of aerobic respiration providing energy for the cell
2.3 function of the chloroplasts
site of photosynthesis - provides food for plants
chlorophyll pigment absorbs light energy
2.3 function of the ribosomes
the site of protein synthesis
2.3 function of the vacuole
contains cell sap
used for storage
helps support the shape of the cell
2.4 how many structures does a plant cell have
8