Assignment 15.1 – task 3 worksheet
Eukaryotic cell components organelle structure function
Cell membrane It is phospholipid bilayer arranged trail to trail. It separates the content of the cell from outside environment. It is a complex structure studded with protein pores It is a boundary between the cell and the outside environment
Nucleus It is a membrane bound structure contains genetic material. It contains the majority of the cell's genetic material. It is a lipid bilayer separated by a gap of 20 to 40 mm. It is responsible for cell division, differentiation and growth.
Rough endoplasmic reticulum It is composed of membranes folded into one another. Responsible for the process of translation.
The surface of rough ER is dotted with…show more content… Transport of material within the cell. It is enclosed by a lipid bilayer Responsible for the functional organisation of the cell.
Golgi body It is stacks of flattened membranous sacs or cisternae. Transport of lipids around the cell. Unlike ER, the membranes are not connected. Modifying, sorting and packing of proteins for synthesis.
Cell wall It is a three layer structure; each layer has definite structure and function. Protects against infection and mechanical stress. It is formed of cellulose. Aids in diffusion of gases in gases in and out of the cell. mitochondria Mitochondria have double membrane. Production of ATP. It has smooth outer membrane with while inside folded called cristae. Mitochondria have enzymes that detoxify ammonia. ribosomes Macromolecular structure composed of RNA and peptide chain. Site of translation They are found scattered in the cytoplasm and some are attached to the endoplasmic reticulum
They assemble amino acids to form specific proteins
Prokaryotic cells organelle structure Function nucleoid It is an irregular shaped region in the prokaryotic cell. It contains almost all of the genetic…show more content… It protect the cell from its surroundings mesozones Folded in aviation in the plasma membrane of prokaryote. To increase the surface area of plasma membrane
Assignment 15.1 – task 2 worksheet
Electron micrograph Visible structure function • Capsule • Capsule protects the cell from engulfment of eukaryotic cells. • Cell wall • It gives the cell its shape.
• cytoplasm • It helps to fill out the cells keep organelles in space. • nucleoid • Nucleoid contain DNA strands which are responsible for replication. • ribosomes • Site of protein synthesis.
• Cell membrane • It protects the cell from its surroundings.
• Cell wall • It also bounds with the cell wall of other cells to form the structure of the plant. • chloroplast • the chloroplast converts the light energy of the sun into sugar that can be used by the cell • cytoplasm • It helps to fill out the cell and keep organelles in place. • mitochondria • Produce the energy currency of the cell. • Vacuole • It is responsible for maintaining pressure in the plant cell.
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Electron micrograph Visible structure function
Electron micrograph Visible structure
