Cell Organelles Flashcards
What is the role of the vacuole?
-Stores sugars and ammino acids.
-For storage and support in animal cells.
What is the role of the nucleolus?
Manufactures ribosomes and ribosomal RNA.
What is the role of the mitocondria?
-Site of areobic respiration.
-Releases energy and produces ATP.
What is the structure of mitocondrian?
-Inner membrane called cristae for large surface area.
-Most of the mitocondrian is made up by a matrix.
-Contain their own DNA.
What is the role of the cell wall?
-For stability
-Resists osmotic changes.
-Water moves through freely.
What 4 organelles are bound by a double membrane?
-Nucleolus
-Chloroplasts
-Mitocondria
-Nucleous
What is the role of the golgi body/appuratus?
-Modifies protiens by adding carbohydrates and packages them.
-Forms lysosomes.
What is the golgi body made out of?
Made of flattened sacs called cisternae.
What is the role of the lysosomes?
-Digests materials such as pathogens.
-Contains hydrolytic enzymes which hydrolyses substances and fuse with the vesicles.
What is the role of the chloroplasts?
-Carries out photosythisis.
-Has its own DNA.
What is the structure of a chloroplast?
-The chloroplast envolope which decides what enters the chloroplast.
-Th grana which contains chlorophyll and for a large surface area.
-The stroma which contains enzymes for photosynthisis.
What organelles are bound by no membrane?
Ribosomes and cell wall
What organelles are bound by a single membrane?
-Rough and smooth endoplasmic rectillium.
-Golgi body
-Lysosomes
-Vacuole
What is the role of the smooth endoplasmic rectillium?
Synthisises carbohydrates and lipids.
What is the role of the nucleous?
-Contains genetic material (chromosones)
-Carries out protein synthisis.
