[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-663837-105":59,"doc-detail-663837-en":129},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":122,"head_meta":124,"extra_data":126,"updated_unix":128},105,"en","organelles-in-our-cells-chapter-4-section-one-overview","Organelles in our Cells - Chapter 4 - Section One Overview","","Organelles are small, specialized structures within the cytoplasm that perform functions required for cells to maintain homeostasis. Electron microscopy and the preparation method influence what researchers can observe and infer. The chapter classifies organelles by whether they are surrounded by their own membrane, distinguishing membranous and non-membranous types, then introduces key membrane-bound organelles. It explains the plasma membrane’s role as a phospholipid bilayer boundary, the nucleus and nuclear pores, and the rough and smooth endoplasmic reticulum, including their protein, lipid, and detoxification functions, with links to later organelle pathways.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/organelles-in-our-cells-chapter-4-section-one-overview/663837/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/organelles-in-our-cells-chapter-4-section-one-overview/663837.png","ImageObject",300,407,{"name":92,"@type":93},"658056","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29",true,{"@type":101,"interactionType":102,"userInteractionCount":14},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"How does the chapter define organelles and why are they important?","Question",{"text":111,"@type":112},"Organelles are small structures inside the cytoplasm that carry out specific functions needed for cells to maintain homeostasis.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"What are the main ways organelles are classified in the text?",{"text":116,"@type":112},"The text classifies organelles structurally by whether they are surrounded by their own membrane (membranous) or not (non-membranous).",{"name":118,"@type":109,"acceptedAnswer":119},"What roles do the rough and smooth endoplasmic reticulum play?",{"text":120,"@type":112},"Rough ER is studded with ribosomes for protein production and processing, while smooth ER lacks ribosomes and is involved in lipid and steroid synthesis and cell detoxification.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},663837,1793232803,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":66,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":132,"file_id":133,"file_url":134,"file_type":135,"file_size":136,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":137,"language":138,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":139,"faqs":140,"seo_title":141,"seo_description":67,"update_tm":128,"read_time":142},658056,"Section One: Chapter 4: The Organelles in our Cells  \nIn terms of the levels of organization, the next level after atoms and molecules is organelles. From the very name organelle, it tells us useful information; -elle as a suffix (at the end) of a word is diminutive, meaning ‘little’, ‘teeny tiny’, such that organelle can read as ‘tiny organ’. Organelles are small structures within the cytoplasm of cells that carry out specific functions necessary for cells to maintain homeostasis.  \nMost of what biologist know regarding the structure of many organelles is from electron microscopy. Interestingly, the way the cell is examined will have an impact on what we ‘see’ and what we can deduce. Although tissues in the body obviously do extraordinary things, few organelles have actually been visualized in living cells, so we must keep in mind that knowledge in this filed is still growing.  \nIn this section we will give an overview of what it is postulated that major organelles do, in order to provide context for when we encounter them in future sections. In the conventional sense, there are many organelles (see Fig. 4.1) . Most often people remember the mitochondria, the nucleus and the Golgi something. A basic way to classify organelles is structurally. That is, whether they are surrounded by their own membrane (membranous organelles) or not (non-membranous organelles) .  \no Examples of membranous organelles are the plasma membrane, nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes.  \no Examples of non-membranous organelles are ribosomes, cytoskeleton, and centrosomes.  \nThe Organelles inside a Cell  \nFigure 4.1 The drawing above shows a typical hypothetical cell containing most of the important the organelles that are discussed in this chapter. The diagrammatic drawing is useful in showing the various organelles, their relative size, typical arrangements and locations within a cell.  \nMembrane Organelles  \nThe Plasma Membrane  \nSince the plasma (cell) membrane is the physical boundary of the cell, we will include it here briefly in our discussion of organelles, even though all of the other organelles discussed will be contained within this structure. There are many theories about the cell membrane, but the most predominant one promoted about the plasma (cell) membrane is that it’s a structure made up of a phospholipid bilayer with embedded proteins in it, and functions to separate the interior of the cell from the outside environment. It protects the cell from its environment and also regulates passage, communication, and cell shape.  \nThe Nucleus  \nThe nucleus is usually the largest organelle which contains information in the form of deoxyribonucleic acid (DNA), which carries genetic instructions for the development, functioning, growth and reproduction of our cells. Surrounding it is the nuclear membrane (envelope), it is like a mini double plasma membrane which separates the genome from the cytoplasm in order to protect it and ensure efficiency with gene transcription (making copies of genes) .  \nThe nuclear envelope contains proteins channels called “nuclear pores” (see image at right) which allows for molecules like ribonucleic acid (RNA) and ribosomes to move in and out of the nucleus. Inside is the nucleoplasm, filled with liquid where chromosomes (tightly packed strands of DNA) are located. The nucleolus is a subspace within the nucleus that is concerned with producing and assembling the cell's ribosomes and ribosomal RNA (rRNA) . Following assembly, ribosomes are transported to the cell cytoplasm where they serve as the sites for protein synthesis.  \nEndoplasmic Reticulum – the Rough and the Smooth  \nThe endoplasmic part of this term means ‘inside the cell’, and reticulum means network, so this is alike a crazy intracellular network. It is membrane attached to the nuclear envelope that folds around itself. There is the rough endoplasmic reticulum (rough ER) and the smooth endoplasmic ret","cbCailGUqAbzbwMg","https://ap.wps.com/l/cbCailGUqAbzbwMg","pdf",1008414,11,"English","# Section One: Chapter 4: The Organelles in our Cells\n## The Organelles inside a Cell\n## Membrane Organelles\n### The Plasma Membrane\n### The Nucleus\n### Endoplasmic Reticulum - the Rough and the Smooth\n## Rough Endoplasmic Reticulum\n## Smooth Endoplasmic Reticulum\n## Golgi Apparatus (Complex or Body)","[{\"question\":\"How does the chapter define organelles and why are they important?\",\"answer\":\"Organelles are small structures inside the cytoplasm that carry out specific functions needed for cells to maintain homeostasis.\"},{\"question\":\"What are the main ways organelles are classified in the text?\",\"answer\":\"The text classifies organelles structurally by whether they are surrounded by their own membrane (membranous) or not (non-membranous).\"},{\"question\":\"What roles do the rough and smooth endoplasmic reticulum play?\",\"answer\":\"Rough ER is studded with ribosomes for protein production and processing, while smooth ER lacks ribosomes and is involved in lipid and steroid synthesis and cell detoxification.\"}]","Organelles in our Cells - Chapter 4 - Section One Overview | PDF",28]