HUMB1000 Study Guide - Final Guide: Endoplasmic Reticulum, Secretion, Cytoplasmic Inclusion
10 Jun 2018
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The cell
• The basic structural and functional unit of the body
Plasma membrane
• Function:
• Controls what goes in and out the cell
• Intercellular communication
• Encloses and support cellular contents
• Structure:
• Phospholipid bilayer & cholesterol
• Carbohydrates
• Proteins
• Consists glycocalyx (Glycoprotein, glycolipids and carbohydrates)
Cytoplasm
• Structure:
• Fluid material which is cytosol and consists organelles
• Cytosol
➢ Cytoskeleton (microtubules, microfilaments and intermediate filaments)
➢ Cytoplasmic inclusion
Nucleus
• Function:
• Controls cell activities
• Contains Deoxyribonucleic acid (DNA) that carries code for structural and functional
characteristics of the cell
• Structure: consists nuclear envelope, nucleoplasm and nucleolus
Ribosomes
• Function: site of protein synthesis for nucleolus, nucleus and cytoplasm
• Structure:
• Compose of large and small unit
• Divided into free ribosomes and membrane-bound ribosomes
Smooth endoplasmic reticulum (Smooth ER)
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Document Summary
The cell: the basic structural and functional unit of the body. Plasma membrane: function, controls what goes in and out the cell, intercellular communication, encloses and support cellular contents, structure, phospholipid bilayer & cholesterol, carbohydrates, proteins, consists glycocalyx (glycoprotein, glycolipids and carbohydrates) Cytoplasm: structure, fluid material which is cytosol and consists organelles, cytosol. Nucleus: function, controls cell activities, contains deoxyribonucleic acid (dna) that carries code for structural and functional characteristics of the cell, structure: consists nuclear envelope, nucleoplasm and nucleolus. Ribosomes: function: site of protein synthesis for nucleolus, nucleus and cytoplasm, structure, compose of large and small unit, divided into free ribosomes and membrane-bound ribosomes. Smooth endoplasmic reticulum (smooth er: function, site of lipid, steroid and carbohydrate synthesis, detoxification of toxic substance, breakdown of glycogen to glucose, structure: fattened interconnecting sacs and tubules without ribosomes attached. Rough endoplasmic reticulum (rough er: function: synthesis and modification of proteins, structure: fattened interconnecting sacs and tubules with ribosomes attached.
