Cell Structures 3 - Organelles Flashcards
chloroplast
a plastid in green plant cells which contains chlorophyll and in which photosynthesis takes place
stroma
the matrix of a chloroplast, in which the grana are embedded
lamellae
a membranous fold in a chloroplast
grana
the stacks of thylakoids embedded in the stroma of a chloroplast
thylakoids
flattened sacs inside a chloroplast, bounded by pigmented membranes on which the light reactions of photosynthesis take place, and arranged in stacks or grana
chlorophyll
green photosensitive pigment chloroplasts, captures radiant energy for photosynthesis
photosynthesis
process of plants making sugars and oxygen gas, using sunlight, from carbon dioxide gas and water
chromoplasts
coloured (pigmented) plant cell
leucoplasts
colourless plant cell that forms starch
tonoplast
membrane that surrounds vacuole of a plant cell
cell sap
the liquid inside the large central vacuole of a plant cell that serves as storage of materials and provides mechanical support
large central vacuole
a large vacuole found inside of plant cells
lysosomes
a membrane-bound cell organelle that contains digestive enzymes
vesicles
a structure within or outside a cell, consisting of liquid or cytoplasm enclosed by a lipid bilayer
contractile vacuoles
a sub-cellular structure involved in osmoregulation
food vacuoles
a membrane-bound vacuole (as in an amoeba) in which ingested food is digested
centrosome
a small region near the nucleus of an animal cell, has two centrioles
centrioles
a rod-like body in animal cells that form poles of spindle during cell division (mitosis)
