{"id":3939,"date":"2026-03-01T12:25:38","date_gmt":"2026-03-01T12:25:38","guid":{"rendered":"https:\/\/physicscatalyst.com\/testprep\/class-8-science\/the-invisible-living-world-beyond-our-naked-eye-class-8-mcq\/"},"modified":"2026-03-01T12:25:38","modified_gmt":"2026-03-01T12:25:38","slug":"the-invisible-living-world-beyond-our-naked-eye-class-8-mcq","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/testprep\/class-8-science\/the-invisible-living-world-beyond-our-naked-eye-class-8-mcq\/","title":{"rendered":"\u2009The Invisible Living World: Beyond Our Naked Eye class 8 MCQ"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam501\" style=\"display:none;text-align:center;\">Please wait...<br><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-501\"><p><strong>General Instructions<\/strong><\/p>\n<ul>\n<li>Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions<\/li>\n<li>This is a 20 min test. Please make sure you complete it in the stipulated time<\/li>\n<li>You can finish this test any time using the <span style=\"color: #ff0000;\"><strong>'Submit'<\/strong><\/span> button.<\/li>\n<\/ul>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-501\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-8446'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>What is called the powerhouse of the cell<\/div><input type='hidden' name='question_id[]' id='qID_1' value='8446' class='watupro-question-id'\/><input type='hidden' id='answerType8446' class='answerTypeCnt1' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8446'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8446[]' id='answer-id-33732' class='answer   answerof-8446  ' value='33732'   \/><label for='answer-id-33732' id='answer-label-33732' class=' answer'><span>GOLGI<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8446[]' id='answer-id-33733' class='answer   answerof-8446  ' value='33733'   \/><label for='answer-id-33733' id='answer-label-33733' class=' answer'><span>RIBOSOMES<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8446[]' id='answer-id-33734' class='answer   answerof-8446  ' value='33734'   \/><label for='answer-id-33734' id='answer-label-33734' class=' answer'><span>MITOCHONDRIA<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8446[]' id='answer-id-33735' class='answer   answerof-8446  ' value='33735'   \/><label for='answer-id-33735' id='answer-label-33735' class=' answer'><span>LYSOSOMES<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-8447'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>The\u00a0 jelly-like substance that makes up most of the inside of the cell.<\/div><input type='hidden' name='question_id[]' id='qID_2' value='8447' class='watupro-question-id'\/><input type='hidden' id='answerType8447' class='answerTypeCnt2' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8447'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8447[]' id='answer-id-33736' class='answer   answerof-8447  ' value='33736'   \/><label for='answer-id-33736' id='answer-label-33736' class=' answer'><span>protoplasm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8447[]' id='answer-id-33737' class='answer   answerof-8447  ' value='33737'   \/><label for='answer-id-33737' id='answer-label-33737' class=' answer'><span>chloroplast<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8447[]' id='answer-id-33738' class='answer   answerof-8447  ' value='33738'   \/><label for='answer-id-33738' id='answer-label-33738' class=' answer'><span>cytoplasm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8447[]' id='answer-id-33739' class='answer   answerof-8447  ' value='33739'   \/><label for='answer-id-33739' id='answer-label-33739' class=' answer'><span>chromosome<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-8448'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>What is false for animals cells<\/div><input type='hidden' name='question_id[]' id='qID_3' value='8448' class='watupro-question-id'\/><input type='hidden' id='answerType8448' class='answerTypeCnt3' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8448'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8448[]' id='answer-id-33740' class='answer   answerof-8448  ' value='33740'   \/><label for='answer-id-33740' id='answer-label-33740' class=' answer'><span>They are smaller in size<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8448[]' id='answer-id-33741' class='answer   answerof-8448  ' value='33741'   \/><label for='answer-id-33741' id='answer-label-33741' class=' answer'><span>Cell membrane and cell wall are present<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8448[]' id='answer-id-33742' class='answer   answerof-8448  ' value='33742'   \/><label for='answer-id-33742' id='answer-label-33742' class=' answer'><span>Centrioles, centrosomes and lysosomes are present<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8448[]' id='answer-id-33743' class='answer   answerof-8448  ' value='33743'   \/><label for='answer-id-33743' id='answer-label-33743' class=' answer'><span>Plastids are absent<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-8449'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>Paramecium belongs which group<\/div><input type='hidden' name='question_id[]' id='qID_4' value='8449' class='watupro-question-id'\/><input type='hidden' id='answerType8449' class='answerTypeCnt4' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8449'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8449[]' id='answer-id-33744' class='answer   answerof-8449  ' value='33744'   \/><label for='answer-id-33744' id='answer-label-33744' class=' answer'><span>Protozoa<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8449[]' id='answer-id-33745' class='answer   answerof-8449  ' value='33745'   \/><label for='answer-id-33745' id='answer-label-33745' class=' answer'><span>Algae<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8449[]' id='answer-id-33746' class='answer   answerof-8449  ' value='33746'   \/><label for='answer-id-33746' id='answer-label-33746' class=' answer'><span>Fungi<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8449[]' id='answer-id-33747' class='answer   answerof-8449  ' value='33747'   \/><label for='answer-id-33747' id='answer-label-33747' class=' answer'><span>Bacteria<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-8450'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>Which of the following is incorrect?<\/div><input type='hidden' name='question_id[]' id='qID_5' value='8450' class='watupro-question-id'\/><input type='hidden' id='answerType8450' class='answerTypeCnt5' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8450'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8450[]' id='answer-id-33748' class='answer   answerof-8450  ' value='33748'   \/><label for='answer-id-33748' id='answer-label-33748' class=' answer'><span>Amoeba is a unicellular animal<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8450[]' id='answer-id-33749' class='answer   answerof-8450  ' value='33749'   \/><label for='answer-id-33749' id='answer-label-33749' class=' answer'><span>Lactobacillus helps in the formation of curd<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8450[]' id='answer-id-33750' class='answer   answerof-8450  ' value='33750'   \/><label for='answer-id-33750' id='answer-label-33750' class=' answer'><span>Virus have cellular structure<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8450[]' id='answer-id-33751' class='answer   answerof-8450  ' value='33751'   \/><label for='answer-id-33751' id='answer-label-33751' class=' answer'><span>None of the above<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-8451'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>What determines the shape of a cell?<\/div><input type='hidden' name='question_id[]' id='qID_6' value='8451' class='watupro-question-id'\/><input type='hidden' id='answerType8451' class='answerTypeCnt6' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8451'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8451[]' id='answer-id-33752' class='answer   answerof-8451  ' value='33752'   \/><label for='answer-id-33752' id='answer-label-33752' class=' answer'><span>The nucleus<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8451[]' id='answer-id-33753' class='answer   answerof-8451  ' value='33753'   \/><label for='answer-id-33753' id='answer-label-33753' class=' answer'><span>Type of stain used<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8451[]' id='answer-id-33754' class='answer   answerof-8451  ' value='33754'   \/><label for='answer-id-33754' id='answer-label-33754' class=' answer'><span>Number of vacuoles<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8451[]' id='answer-id-33755' class='answer   answerof-8451  ' value='33755'   \/><label for='answer-id-33755' id='answer-label-33755' class=' answer'><span>its function<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-8452'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>What makes *Spirulina* a superfood?<\/div><input type='hidden' name='question_id[]' id='qID_7' value='8452' class='watupro-question-id'\/><input type='hidden' id='answerType8452' class='answerTypeCnt7' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8452'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8452[]' id='answer-id-33756' class='answer   answerof-8452  ' value='33756'   \/><label for='answer-id-33756' id='answer-label-33756' class=' answer'><span>its fat content<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8452[]' id='answer-id-33757' class='answer   answerof-8452  ' value='33757'   \/><label for='answer-id-33757' id='answer-label-33757' class=' answer'><span>its smell<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8452[]' id='answer-id-33758' class='answer   answerof-8452  ' value='33758'   \/><label for='answer-id-33758' id='answer-label-33758' class=' answer'><span>its colour<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8452[]' id='answer-id-33759' class='answer   answerof-8452  ' value='33759'   \/><label for='answer-id-33759' id='answer-label-33759' class=' answer'><span>high protean and vitamin B12<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-8453'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>Nitrogen-fixing microorganism present in the root nodules of legumes.<\/div><input type='hidden' name='question_id[]' id='qID_8' value='8453' class='watupro-question-id'\/><input type='hidden' id='answerType8453' class='answerTypeCnt8' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8453'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8453[]' id='answer-id-33760' class='answer   answerof-8453  ' value='33760'   \/><label for='answer-id-33760' id='answer-label-33760' class=' answer'><span>Rhizobium<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8453[]' id='answer-id-33761' class='answer   answerof-8453  ' value='33761'   \/><label for='answer-id-33761' id='answer-label-33761' class=' answer'><span>Chlamydomonas<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8453[]' id='answer-id-33762' class='answer   answerof-8453  ' value='33762'   \/><label for='answer-id-33762' id='answer-label-33762' class=' answer'><span>Diatoms<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8453[]' id='answer-id-33763' class='answer   answerof-8453  ' value='33763'   \/><label for='answer-id-33763' id='answer-label-33763' class=' answer'><span>None of these<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-8454'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>Which of the following cell is cylindrical and spindle-shaped?<\/div><input type='hidden' name='question_id[]' id='qID_9' value='8454' class='watupro-question-id'\/><input type='hidden' id='answerType8454' class='answerTypeCnt9' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8454'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8454[]' id='answer-id-33764' class='answer   answerof-8454  ' value='33764'   \/><label for='answer-id-33764' id='answer-label-33764' class=' answer'><span>White Blood Cells<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8454[]' id='answer-id-33765' class='answer   answerof-8454  ' value='33765'   \/><label for='answer-id-33765' id='answer-label-33765' class=' answer'><span>Muscle Cells\r\n<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8454[]' id='answer-id-33766' class='answer   answerof-8454  ' value='33766'   \/><label for='answer-id-33766' id='answer-label-33766' class=' answer'><span>Red Blood Cells<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8454[]' id='answer-id-33767' class='answer   answerof-8454  ' value='33767'   \/><label for='answer-id-33767' id='answer-label-33767' class=' answer'><span>Caulerpa toxifolia<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-8455'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>Which of the following cell organelle is not present in a plant cell?<\/div><input type='hidden' name='question_id[]' id='qID_10' value='8455' class='watupro-question-id'\/><input type='hidden' id='answerType8455' class='answerTypeCnt10' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8455'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8455[]' id='answer-id-33768' class='answer   answerof-8455  ' value='33768'   \/><label for='answer-id-33768' id='answer-label-33768' class=' answer'><span>Cell Wall<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8455[]' id='answer-id-33769' class='answer   answerof-8455  ' value='33769'   \/><label for='answer-id-33769' id='answer-label-33769' class=' answer'><span>Mitochondrian<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8455[]' id='answer-id-33770' class='answer   answerof-8455  ' value='33770'   \/><label for='answer-id-33770' id='answer-label-33770' class=' answer'><span>Centrioles<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8455[]' id='answer-id-33771' class='answer   answerof-8455  ' value='33771'   \/><label for='answer-id-33771' id='answer-label-33771' class=' answer'><span>Vacuoles<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-11'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" 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