Flashcards in Organelles Deck (15)
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1
Define organelles
Small structures inside cells that perform a specific function
2
What is the structure of a nucleus
A spherical structre enclosed by a double layer of plasma membrane which has pores and also contains a nucleolus
3
Role of nucleus
Composed of chromosomes which contain the cells genetic DNA material
4
Role of the mitochondria
Site of aerobic respiration and provides energy for the cell in the form of ATP.
5
Where are ribosomes found?
Floating alone in the cell or attached to the e.r
6
Role: Ribosomes
Site of protein synthesis
7
Structure: Ribosomes
Non-membrane bound organlles that are made up of rRNA and protein
8
Role: Rough ER
Involved in the synthesis and transportation of proteins
9
Structure: Rough ER
A series of membrane bound channels, studded with proteins
10
Role: Smooth ER
Involved in the synthesis and transportation of lipids
11
Role: Golgi Apparatus
Stores, modifies and pacakages synthesised proteins for secretion from the cell
12
Role and structure of lysosomes
Membrane bound strcutres that contain digestive enzymes> lysosomes digest any unwanted structures or substances inside the cell
13
Define cytosol
Fluid inside the cell that surrounds the organelles
14
Define cytoplasm
Fluid inside the cell that includes the cytosol and the fluid inside all the organelles exept the nucleus
15
