CBSE Class 8 Science Microorganisms Friend or Foe MCQs
Refer to CBSE Class 8 Science Microorganisms Friend or Foe MCQs provided below available for download in Pdf. The MCQ Questions for Class 8 Science with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 2 Microorganisms Friend or Foe are an important part of exams for Class 8 Science and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 8 Science and also download more latest study material for all subjects
नीचे दिए गए CBSE कक्षा 8 विज्ञान सूक्ष्मजीव मित्र या शत्रु MCQ देखें जो पीडीएफ में डाउनलोड के लिए उपलब्ध हैं। उत्तर के साथ कक्षा 8 विज्ञान के लिए MCQ प्रश्न CBSE, NCERT और KVS द्वारा सुझाए गए नवीनतम पाठ्यक्रम और परीक्षा पैटर्न के अनुसार संरेखित हैं। अध्याय 2 सूक्ष्मजीव मित्र या शत्रु के लिए बहुविकल्पीय प्रश्न कक्षा 8 विज्ञान के लिए परीक्षाओं का एक महत्वपूर्ण हिस्सा हैं और यदि ठीक से अभ्यास किया जाए तो आपको अपनी समझ को बेहतर बनाने और उच्च अंक प्राप्त करने में मदद मिल सकती है। CBSE कक्षा 8 विज्ञान के लिए अधिक अध्याय-वार MCQ देखें और सभी विषयों के लिए अधिक नवीनतम अध्ययन सामग्री भी डाउनलोड करें
MCQ for Class 8 Science Chapter 2 Microorganisms Friend or Foe
Class 8 Science students should refer to the following multiple-choice questions with answers for Chapter 2 Microorganisms Friend or Foe in Class 8.
कक्षा 8 विज्ञान के छात्रों को कक्षा 8 के अध्याय 2 सूक्ष्मजीव मित्र या शत्रु के लिए निम्नलिखित बहुविकल्पीय प्रश्नों के उत्तर देखने चाहिए।
Chapter 2 Microorganisms Friend or Foe MCQ Questions Class 8 Science with Answers
Question. Diseases like polio and chicken pox are caused by _______
a) Bacteria
b) Fungi
c) Virus
d) Worms
Answer: C
Question. Examples of Multicellular Microorganism are
a) Algae, Bacteria
b) Bacteria and Fungi
c) Bacteria and Viruses
d) Algae and Fungi
Answer: D
Question. Some
medicines obtained from micro-organisms are applied to kill or stop the
growth of disease-causing microorganisms. Such medicines are called
______.
a) Antibodies
b) Antibiotics
c) Antiseptics
d) All of the above
Answer: B
Question. A common preservative used in jam and pickles is
a) Sodium benzoate
b) Nitric acid
c) Sodium Chloride
d) Copper Sulphate
Answer: A
Question. Rhizobium found in root nodules of leguminous roots is an
a) Atmospheric Carbon fixer
b) Atmospheric Oxygen fixer
c) Atmospheric Nitrogen fixer
d) All of the above
Answer: C
Question. Lactobacillus is commonly found in
a) Cake
b) Curd
c) Bread
d) All of the above
Answer: B
Question. The process of conversion of sugar into alcohol by yeast is called
a) Fermentation
b) Pasteurisation
c) Alcoholism
d) All of the above
Answer: A
Question. The pores in the bread is due to gas bubbles of
a) Oxygen
b) Nitrogen di oxide
c) Nitrogen
d) Carbon di oxide
Answer: D
Question. Deliberately
injecting weak microbes into a healthy body and producing antibodies to
fight against strong microbes is called _______
a) Medication
b) Antibiotics
c) Vaccination
d) All of the above
Answer: C
Question. The microbe for Malaria is carried by
a) Male Anopheles mosquito
b) Female Anopheles Mosquito
c) Male Aedes mosquito
d) Female Aedes mosquito
Answer: C
Question: Microorganisms are
a) Multi-cellular
b) Unicellular
c) Unicellular and multi-cellular
d) None of the options
Answer: A
Question: Penicillium is a
a) Fungus
b) Algae
c) Bacteria
d) Yeast
Answer: A
Question: Malaria Is caused by
a) Protozoa
b) Virus
c) Algae
d) Bacteria
Answer: A
Question: Rhizobium becteria
a) Help in nitrogen fixation
b) Help in digestion
c) Cause diseases
d) All of these
Answer: B
Question: Scientist who discovered fermentation is
a) Louis pasteur
b) Alexander fleming
c) John mendal
d) Edward jenner
Answer: A
Question: Amoeba belongs to
a) Protozoa
b) Algae
c) Fungi
d) Virus
Answer: A
Question: Mushroom belongs to
a) Fungi
b) Algae
c) Virus
d) None of the options
Answer: C
Question: Amount of nitrogen in the atmosohere is
a) 0.78
b) 0.58
c) 0.68
d) 0.88
Answer: A
Question: Vaccine for small pox is discorvered by
a) Edward jenner
b) Louis pasteur
c) Alexander fleming
d) John mendal
Answer: A
Question: Spyrogyra is
a) A fungi
b) An algae
c) A protozoa
d) A bacteria
Answer: A
Question. In Pasteurisation the milk is heated to about:
(a) 100°C
(b) 50°C
(c) 70°C
(d) 110°C
Answer : C
Question. Scientist who discovered fermentation is
(a) Alexander Fleming
(b) Louis Pasteur
(c) John Mendal
(d) Edward Jenne
Answer : B
Question. What helps in the rise of bread or dosa dough?
(a) Heat
(b) Grinding
(c) Growth of yeast cells
(d) Low pressure
Answer : C
Question. Yeast is not used in the preparation of :
(a) bread
(b) alcohol
(c) dhokla
(d) antibiotic
Answer : D
Question. Which of the following enzymes is secreted by bacteria that can digest cellulose?
(a) Amylase
(b) Cellulase
(c) Lipase
(d) Protease
Answer : B
Question. Examples of Multicellular Microorganism are
(a) Algae, Bacteria
(b) Bacteria and Fungi
(c) Bacteria and Viruses
(d) Algae and Fungi
Answer : D
Question. Virus reproduce:
(a) only outside the cells of the host organisms
(b) only inside the cells of the host organisms
(c) both inside and outside the cells of the host organisms
(d) none of these
Answer : B
Question. A plant disease called citrus canker is caused by a _________ .
(a) Virus
(b) Protozoa
(c) Bacteria
(d) Fungi
Answer : C
Question. What process takes place when yeast is added to grape juice and left for a week?
(a) Decomposition
(b) Fermentation
(c) Distillation
(d) Oxidation
Answer : B
Question. Malaria is spread by:
(a) plasmodium
(b) female anapheles mosquito
(c) male anapheles mosquito
(d) none of these
Answer : B