{"id":2887,"date":"2023-04-27T08:56:07","date_gmt":"2023-04-27T00:56:07","guid":{"rendered":"http:\/\/www.mitlc.edu.hk\/?p=2887"},"modified":"2023-10-11T16:37:23","modified_gmt":"2023-10-11T08:37:23","slug":"protist","status":"publish","type":"post","link":"http:\/\/www.mitlc.edu.hk\/eng\/2023\/04\/27\/protist\/","title":{"rendered":"Protists"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2887\" class=\"elementor elementor-2887\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b523574 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b523574\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fb4e433\" data-id=\"fb4e433\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3100365 elementor-widget elementor-widget-text-editor\" data-id=\"3100365\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 09-10-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>All the eukaryotic organisms that are not classified into Kingdom Animalia, Plantae or Fungi, are classified as Kingdom Protista. The organisms in this Kingdom basically have one common feature, that is, their nucleus and organelles are surrounded by a plasma membrane. They are called \u201cprotists\u201d, a very diverse group of organisms. Most of them are unicellular that only a few of them are multicellular yet without tissue differentiation. Apart from their simple structures, they have no other similarities. Thus, it is difficult to describe them in a simple and general way.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de893d3 elementor-widget elementor-widget-text-editor\" data-id=\"de893d3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The organisms within the kingdom Protista can be divided into different groups according to their nutrition mode (autotrophic \/ heterotrophic). For instance, algae, which have photosynthetic pigments for light absorption inside their cell bodies (e.g. Spirogyra, diatoms, brown algae); protozoans, which feed on organic matters or other micro-organisms (e.g. amoeba, ciliate); fungi-liked protist, which absorb the nutrients from dead or decayed organic matters (e.g. slime molds, Saprolegnia). And there is a type of protist, Euglena, which is difficult to be classified. It is because Euglena have chloroplast, that can carry out photosynthesis to produce food. At the same time, they can also feed on other micro-organisms and absorb food directly through phagocytosis.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bee6147 elementor-widget elementor-widget-text-editor\" data-id=\"bee6147\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Most protists are aquatic, and a few of them live in moist soil or moist environment. Since most of them are very tiny, light microscopes are required for observation. Yet, it is not difficult to find and observe them. We can collect some moist soil samples and add a small amount of water to soak the soil. Standing still the sample for about 10 minutes, we then can use a dropper to transfer a drop of water sample from the soil samples, onto the slide and then cover it with a cover slip. Finally, we can put the temporary mount slide on the stage of a compound microscope for observing the living micro-organisms.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7729e4f elementor-widget elementor-widget-image\" data-id=\"7729e4f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 09-10-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"699\" src=\"http:\/\/www.mitlc.edu.hk\/wp-content\/uploads\/2023\/04\/Protist_Cosmarium-sp-1024x699.png\" class=\"attachment-large size-large wp-image-3774\" alt=\"\" loading=\"lazy\" srcset=\"http:\/\/www.mitlc.edu.hk\/wp-content\/uploads\/2023\/04\/Protist_Cosmarium-sp-1024x699.png 1024w, http:\/\/www.mitlc.edu.hk\/wp-content\/uploads\/2023\/04\/Protist_Cosmarium-sp-300x205.png 300w, http:\/\/www.mitlc.edu.hk\/wp-content\/uploads\/2023\/04\/Protist_Cosmarium-sp-768x525.png 768w, http:\/\/www.mitlc.edu.hk\/wp-content\/uploads\/2023\/04\/Protist_Cosmarium-sp-1536x1049.png 1536w, http:\/\/www.mitlc.edu.hk\/wp-content\/uploads\/2023\/04\/Protist_Cosmarium-sp-2048x1399.png 2048w, http:\/\/www.mitlc.edu.hk\/wp-content\/uploads\/2023\/04\/Protist_Cosmarium-sp-18x12.png 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text translation-block\">Figure 1:  <i>Cosmarium<\/i> sp. (x400)<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba80b95 elementor-widget elementor-widget-video\" data-id=\"ba80b95\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/X8V_EIYBdEI&quot;,&quot;mute&quot;:&quot;yes&quot;,&quot;loop&quot;:&quot;yes&quot;,&quot;video_type&quot;:&quot;youtube&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 09-10-2023 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not 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.elementor-custom-embed-image-overlay{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-custom-embed-image-overlay img{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f58fe6e elementor-widget elementor-widget-text-editor\" data-id=\"f58fe6e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p class=\"MsoNormal translation-block\" style=\"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri; color: #000000; font-style: normal; font-weight: 400; text-align: center;\">Video of ciliate (x200)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d85f335 elementor-widget elementor-widget-spacer\" data-id=\"d85f335\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 09-10-2023 *\/\n.elementor-column .elementor-spacer-inner{height:var(--spacer-size)}.e-con{--container-widget-width:100%}.e-con-inner>.elementor-widget-spacer,.e-con>.elementor-widget-spacer{width:var(--container-widget-width,var(--spacer-size));--align-self:var(--container-widget-align-self,initial);--flex-shrink:0}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container,.e-con>.elementor-widget-spacer>.elementor-widget-container{height:100%;width:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer{height:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner{height:var(--container-widget-height,var(--spacer-size))}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty,.e-con>.elementor-widget-spacer.elementor-widget-empty{position:relative;min-height:22px;min-width:22px}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon,.e-con>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon{position:absolute;top:0;bottom:0;left:0;right:0;margin:auto;padding:0;width:22px;height:22px}<\/style>\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b32eff7 elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"b32eff7\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/qxLi3hshiLk&quot;,&quot;mute&quot;:&quot;yes&quot;,&quot;loop&quot;:&quot;yes&quot;,&quot;video_type&quot;:&quot;youtube&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8a13c6 elementor-widget elementor-widget-text-editor\" data-id=\"b8a13c6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: center;\" class=\" translation-block\">Video of ameoba (x200)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-627269a elementor-widget elementor-widget-spacer\" data-id=\"627269a\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8eafb9c elementor-widget elementor-widget-text-editor\" data-id=\"8eafb9c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Author: Ms. AU Chi Yan (Biology teacher)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u6240\u6709\u672a\u80fd\u6b78\u985e\u70ba\u52d5\u7269\u754c\u3001\u690d\u7269\u754c\u6216\u771f\u83cc\u754c\u7684\u771f\u6838\u751f\u7269\u90fd\u6703\u88ab\u6b78\u985e\u70ba\u539f\u751f\u751f\u7269\u754c\u3002\u6b64\u754c\u5225\u7684\u751f\u7269\u53ea\u6709\u4e00\u500b\u5171\u540c\u7279\u5fb5\uff0c\u5c31\u662f\u5176\u7d30\u80de\u6709\u7d30\u80de\u6838\u548c\u8cea\u819c\u5305\u570d\u7684\u7d30\u80de\u5668\uff0c\u7d71\u7a31\u300c\u539f\u751f\u751f\u7269\u300d&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[1],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/posts\/2887"}],"collection":[{"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/comments?post=2887"}],"version-history":[{"count":45,"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/posts\/2887\/revisions"}],"predecessor-version":[{"id":3885,"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/posts\/2887\/revisions\/3885"}],"wp:attachment":[{"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/media?parent=2887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/categories?post=2887"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.mitlc.edu.hk\/eng\/wp-json\/wp\/v2\/tags?post=2887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}