Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- By complete oxidation of glucose number of ATP molecule formed is 

a. 2 

b. 28 

c. 38 

d. 48 


Answer- 38


Que- Haemoglobin is an important component of 

a. RBC 

b. WBC 

c. Platletes 

d. Cytoplasm 


Answer- RBC


Que- Hemoglobin, the oxygen carrying substance in red blood cells, is a  

a. Nuclei acid 

b. Carbohydrates 

c. Fats 

d. Proteins 


Answer- Proteins


Que- What carries blood back to the heart? 

a. Veins 

b. Arteries 

c. Both A & B 

d. None 


Answer- Veins


Que- The smallest blood vessels which are one-cell thick, are called ________  

a. Vena cava 

b. Arteries 

c. Veins 

d. Capillaries 


Answer- Capillaries


Que- Name the blood cells in which nucleus is absent. 

a. Lymphocytes 

b. Blood Platelets 

c. Monocytes 

d. Eosinophils 


Answer- Blood Platelets


Que- The scientific study of livings is called 

a. Zoology 

b. Anotomy 

c. Ecology 

d. Biology 


Answer- Biology


Que- They are present in the underground parts of the plants and stored food 

a. Leucoplasts 

b. Chromoplasts 

c. Chloroplasts 

d. Lysosomes 


Answer- Leucoplasts


Que- Which of the following groups is present in animal cells ? 

a. Mitochondria, Cell membrane, Cell wall, Cytoplasm 

b. Chloroplasts, Cytoplasm, Vacuole, Nucleus 

c. Nucleus, Cell membrane, Mitochondria, Cytoplasm 

d. Vacuole, Cell membrane, Nucleus, Mitochondria 


Answer- Nucleus, Cell membrane, Mitochondria, Cytoplasm


Que- What is the full form of DNA? 

a. Diribo nucleic acid 

b. Di nucleic acid 

c. Dual nitrogen acid 

d. Deoxyribonucleic acid 


Answer- Deoxyribonucleic acid


Que- What is the full form of RNA? 

a. Ribonucleic Acid 

b. Ribonitric Acid 

c. Ribonutrient Acid 

d. Reverse Nucleic Acid 


Answer- Ribonucleic Acid


Que- The stages between larval moults in an insect are called 

a. Pupal  

b. Instars  

c. Grubs  

d. Caterpillars  


Answer- Instars 


Que- In which of the following stages of silkworm, silk is secreted 

a. Larva  

b. Pupa  

c. Egg  

d. Adult  


Answer- Pupa 


Que- Which is the longest bone in the human body? 

a. Fibula 

b. Radius 

c. Stapes 

d. Femur 


Answer- Femur


Que- The bone of the which organ is the longest in the human body ? 

a. Spinal cord 

b. Thigh 

c. Rib cage 

d. Ankle-bone 


Answer- Thigh


Que- Treatment of body defects through massage and exercise is 

a. Phylogeny 

b. Parasitology 

c. Physiotherapy 

d. Physiology 


Answer- Physiotherapy


Que- The bacterium which reduces the fertility of soil is  

a. Nitrosomonas sp 

b. Azotobacter sp 

c. Nitrobacter sp 

d. Bacillus dentificans 


Answer- Bacillus dentificans


Que- There are used in the retting of flax and hemp. 

a. Viruses 

b. Bacteria 

c. Fungi 

d. Mosses 


Answer- Bacteria


Que- Which of the following bacteria is responsible for the formation of curd? 

a. Lycopodium 

b. Yeast 

c. Lacto-bacillus 

d. Fungus 


Answer- Lacto-bacillus


Que- Yeast used in making bread is a 

a. Fungus 

b. Bacteria 

c. Seed 

d. Plant 


Answer- Fungus


Que- Nitrogen fixation process in the soil is done by 

a. Virus  

b. Bacteria  

c. Fungi  

d. Protoza  


Answer- Bacteria 


Que- Mycology is the branch of botany in which we study about 

a. Algae 

b. Fungi 

c. Bacteria 

d. Virus 


Answer- Fungi


Que- Mycology is the branch of botany in which we study about 

a. Algae 

b. Fungi 

c. Bacteria 

d. Virus 


Answer- Fungi


Que- Phycology is the branch of botany in which we study about 

a. Algae 

b. Fungi 

c. Ecology 

d. Virus 


Answer- Algae


Que- The DNA bacterium consists of ring-like pieces known as the 

a. Plasmids 

b. Genes 

c. Chromosomes 

d. Mesosomes 


Answer- Plasmids


Que- It is commonly found in the bottom tidal pools? 

a. Spirogyra 

b. Ulva 

c. Stiogeoclonium 

d. Chlamydomonas 


Answer- Ulva


Que- The audible sounds that heart are made by the closing of the 

a. Arteries  

b. Veins  

c. Valve  

d. Ventricle  


Answer- Valve 


Que- Which one is the largest artery in the human body 

a. Radial Artery  

b. Ulnar Artery  

c. Aorta  

d. Arterioles  


Answer- Aorta 


Que- Which veins donot carry de-oxygenated blood 

a. Portal Veins  

b. Hepatic Veins  

c. Subclavian Veins  

d. Pulmonary Veins  


Answer- Portal Veins 


Que- Muscular wall of the heart is externally covered by 

a. Epithelium  

b. Endothelium  

c. Epicardium  

d. Myocardium  


Answer- Epicardium 


Que- The deposition of cholesterol on the walls of blood vessels causes the arteries to lose their elasticity and get stiffened is called 

a. Hypotension  

b. Hypertension  

c. Systolic Pressure  

d. Arteriosclerosis  


Answer- Arteriosclerosis 


Que- Pituitary gland is situated in 

a. Brain 

b. Throat 

c. Kidney 

d. Pancrease 


Answer- Brain


Que- The gland that is present close to Trachea 

a. Pancreas 

b. Liver 

c. Adrenal 

d. Thyroid 


Answer- Thyroid


Que- Study of ductless gland is called 

a. Embrayology 

b. Endocrinology 

c. Ecology 

d. Euthenics 


Answer- Endocrinology


Que- Cretinism is due to the disorder of the glands 

a. Thymus 

b. Parathyroid 

c. Thyroid 

d. Adrenal 


Answer- Thyroid


Que- Pancreas secretes 

a. Insulin  

b. Glucagon  

c. Pancreatic juice  

d. All of the above  


Answer- All of the above 


Que- In a healthy person rate of heart beat on one minute is 

a. 58 times 

b. 67 times 

c. 72 times 

d. 90 times 


Answer- 72 times


Que- The word histology is related with 

a. Hepatology 

b. Hematalogy 

c. Histology 

d. None of these 


Answer- Hematalogy


Que- Which one of the following statements regarding haemoglobin is correct? 

a. Haemoglobin present in RBC can carry only oxygen but not carbon dioxide 

b. Haemoglobin of RBC can carry both oxygen and carbon dioxide 

c. Haemoglobin of RBC can carry only carbon dioxide 

d. Haemoglobin is only used for blood clotting and not for carrying gases 


Answer- Haemoglobin of RBC can carry both oxygen and carbon dioxide


Que- The vitamin required for coagulation of blood 

a. B6 

b. C 

c. K 

d. B 


Answer- K


Que- What type of tissue is Blood 

a. Epithelial  

b. Cardiac  

c. Connective  

d. Muscular  


Answer- Connective 


Que- The layer of cells between endodermis and vascular bundles is called 

a. Hypodermis  

b. Cortex  

c. Pith  

d. Pericycle  


Answer- Hypodermis 


Que- Gymnosperms are characterized by the 

a. Absence of seeds 

b. Presence of flowers 

c. Presence of seeds in cones 

d. Absence of vascular tissues 


Answer- Absence of seeds


Que- In a bisexual flower if androcium and gynoecium mature at different time the phenomeon is known as ________  

a. Dichogamy 

b. Herpogamy 

c. Haterogamy monogamy 

d. None of these 


Answer- Dichogamy


Que- The pollen grains of Pinus are carried to its female cone through the  

a. Pollen tube 

b. Wind 

c. Insects 

d. Animals 


Answer- Wind


Que- Grassland with scattered tree is known as 

a. Savanna  

b. Deciduous Forests  

c. Evergreen Forests  

d. Tropical Rain Forests  


Answer- Savanna 


Que- Dr. Birbal Sahni; a famous Indian botanist is concerned with ________ studies. 

a. Algal  

b. Fossil  

c. Bryophytic  

d. Fungal  


Answer- Fossil 


Que- Plants which grow on saline soils are known as 

a. Xerophytes  

b. Hydrophytes  

c. Halophytes  

d. Succulents  


Answer- Halophytes 


Que- Which of the following organisms fix nitrogen in aquatic ecosystems? 

a. Fungi  

b. Chemoautotrophs  

c. Cyanobacteria  

d. Phytoplankton  


Answer- Cyanobacteria 


Que- Which ecological pyramid can never be inverted 

a. Pyramid of number  

b. Pyramid of size  

c. Pyramid of energy  

d. Pyramid of biomass  


Answer- Pyramid of energy 


Que- Which one of the following hormones is essential for the uptake of glucose by cells in the human body? 

a. GH 

b. TSH 

c. Insulin 

d. Cortisol 


Answer- Insulin


Que- Goitre is caused by the deficiency of ________  

a. Zinc 

b. Calcium 

c. Iodine 

d. Chlorine 


Answer- Iodine


Que- Endocrine glands are also known as 

a. Micro gland 

b. Macro gland 

c. Ductless gland 

d. Acidic gland 


Answer- Ductless gland


Que- Enzymes are produced by 

a. Endocrine glands 

b. Exocrine glands 

c. Liver 

d. Spleen 


Answer- Exocrine glands


Que- Which one of following is a duct less gland 

a. Liver 

b. Sweat gland 

c. Endocrine gland 

d. Kidney 


Answer- Endocrine gland


Que- Branch of science which deal with the study of causative agent of disease is 

a. Ecology 

b. Etiology 

c. Eugenics 

d. Euthenics 


Answer- Etiology


Que- Select the correct statement about active and passive immunity. 

a. A vaccination is an example of the introduction of passive immunity into the body 

b. Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies 

c. Immunological memory is established by passive immunization 

d. The antibodies utilized in active immunity are acquired from another organism 


Answer- Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies


Que- Polio is caused by 

a. Bacteria 

b. Virus 

c. Fungus 

d. Protozoa 


Answer- Virus


Que- Rhinitis is the disease that effects which body part? 

a. Brain 

b. Nose 

c. Blood 

d. Skin 


Answer- Nose


Que- Which disease is caused due to deficiency of Iodine? 

a. Rickets 

b. Scurvy 

c. Goitre 

d. Growth retardation 


Answer- Goitre


Que- In plants cells,which structure provides a definite shape to the cell and makes it right? 

a. Cell membrane 

b. Chitin 

c. Epidermis 

d. Cell wall 


Answer- Cell wall


Que- Produces a usable form of energy for the cell 

a. Lysosomes 

b. Vacuoles 

c. Mitochondria 

d. Ribosomes 


Answer- Mitochondria


Que- Which among the following is also called as 'power house of the cell'? 

a. Plastids 

b. Mitochondria 

c. Golgi bodies 

d. Cell wall 


Answer- Mitochondria


Que- Volume of blood found in a healthy person is  

a. 3-4 litre 

b. 4-5 litre 

c. 5-6 litre 

d. 6-7 litre 


Answer- 5-6 litre


Que- Which blood group is universal donor? 

a. O+ 

b. O- 

c. AB- 

d. AB+ 


Answer- O-


Que- Deficiency of which of the following causes non-clotting of blood? 

a. Vitamin C 

b. Vitamin K 

c. Vitamin E 

d. Vitamin B12 


Answer- Vitamin K


Que- Organisms need Nutrients in order to 

a. Breaking down food 

b. Utilize chemical compounds 

c. Recycling 

d. None 


Answer- Breaking down food


Que- Sugar is a component of which of the following? 

a. Lipids 

b. Nucleic acids 

c. Carbohydrates 

d. Both B & C 


Answer- Carbohydrates


Que- The main protein found in milk is ________  

a. Albumin 

b. Globulin 

c. Globin 

d. Casein 


Answer- Casein


Que- Which one of the following vitamins is known as the anti sterile factor ? 

a. Ascorbic acid 

b. Riboflavin 

c. Niacin 

d. Retinol 


Answer- Riboflavin


Que- The trypsinogen is an enzyme secreted by the 

a. Liver  

b. Illeum  

c. Duodenum  

d. Pancrease  


Answer- Pancrease 


Que- Which body part will be effected with the disease leprosy? 

a. Blood 

b. Legs 

c. Skin 

d. Brain 


Answer- Skin


Que- AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through 

a. Eating contaminated food and water 

b. Transfusion of contaminated blood and blood products 

c. Inhaling polluted air 

d. Shaking hand with infected person 


Answer- Transfusion of contaminated blood and blood products


Que- Which one of the following diseases is caused by bacteria and spreads through faecal matter by houseflies ? 

a. Pertussis 

b. Typhoid 

c. Diphtheria 

d. Chickenpox 


Answer- Typhoid


Que- Which cells are destroyed in AIDS 

a. Monocytes 

b. Neutrophils 

c. Lymphocytes 

d. R.B.C 


Answer- Lymphocytes


Que- Which of the following blood cells carry oxygen? 

a. W.B.Cs 

b. Platelets 

c. R.B.Cs 

d. All of the above 


Answer- R.B.Cs


Que- In human body lymphocytes are formed in 

a. Liver 

b. Bone marrow 

c. Pancreas 

d. Spleen 


Answer- Bone marrow


Que- Which statement about capillaries is correct? 

a. Their walls are covered with cilia 

b. They warm and humidify inhaled air 

c. Their walls are only one cell thick 

d. They move mucus through the lungs 


Answer- Their walls are only one cell thick


Que- The grouping of blood is based on substances called 

a. Antibodies 

b. Antigens 

c. Antitoxin 

d. Enzymes 


Answer- Antigens


Que- Which blood group is universal acceptor? 

a. O+ 

b. O- 

c. AB- 

d. AB+ 


Answer- AB+


Que- Which lobe of human brain is associated with hearing? 

a. Frontal lobe 

b. Parietal lobe 

c. Temporal lobe 

d. Occipital lobe 


Answer- Temporal lobe


Que- Which of the following organs do not have blood vessels? 

a. Spleen 

b. Cornea 

c. Liver 

d. None of the above 


Answer- Cornea


Que- Receptors for hearing are located in the 

a. Vestibule 

b. Tympanic membrane 

c. Semicircular canals 

d. Cochlea 


Answer- Cochlea


Que- Image of object is is formed on which part of eye 

a. Cornea 

b. Choroid 

c. Retina 

d. Iris 


Answer- Retina


Que- A colour blind person has difficulty in distinguishing which of the two colours ? 

a. Green & Red 

b. White & Red 

c. Blue & Red 

d. Red & Black 


Answer- Green & Red


Que- Chiropterophily is the process of pollination by 

a. Bee  

b. Bat  

c. Insect  

d. Bird  


Answer- Bat 


Que- Which of the following may cause the breakdown of pyruvate into lactic acid in our muscles? 

a. Lack of water 

b. Lack of Oxygen 

c. Lack of carbon dioxide 

d. Lack of nitrogen 


Answer- Lack of Oxygen


Que- The main result of aerobic respiration is the 

a. Production of lactic acid as an end product 

b. Production of ATP from the breakdown of glucose 

c. Conversion of radiant energy into chemical energy 

d. Storage of energy in a polysaccharide 


Answer- Production of ATP from the breakdown of glucose


Que- What compound directly provides energy for cellular work? 

a. ATP 

b. ADP 

c. NADP 

d. NADH 


Answer- ATP


Que- The outer membrane that covers the lungs 

a. Dura mater 

b. Pleura 

c. Pia mater 

d. Myelin sheath 


Answer- Pleura


Que- Bacteria were first discovered by 

a. Robert Koch 

b. Robert Hooke 

c. Louis Pasteur 

d. A.V.Leeuwenhoek 


Answer- A.V.Leeuwenhoek


Que- Among the many substances manufactured commercially by means of ________ are acetic acid, acetone, butanol, lactic acid and several vitamins. 

a. Viruses 

b. Bacteria 

c. Fungi 

d. Yeast 


Answer- Bacteria


Que- In fungi asexual reproduction occurs mostly by 

a. Fragmentation 

b. Budding 

c. Spore formation 

d. All of these 


Answer- All of these


Que- Amoeba belongs to the phylum 

a. Protozoa 

b. Annelida 

c. Porifera 

d. Platyhelminthes 


Answer- Protozoa


Que- Dried milk dried meat are examples of preservation by  

a. Pasteurization 

b. Dehydration 

c. Strerilization 

d. None of the above 


Answer- Dehydration


Que- Tissue in which cells have lost the capacity of cell division  

a. Mesristmatic tissue 

b. Permanent tissue 

c. Both a and b 

d. None of these 


Answer- Permanent tissue


Que- Plant tissues are of how many types? 

a. 3 

b. 2 

c. 5 

d. 6 


Answer- 3


Que- Detail study of internal organs at level of tissue with the help of microscope is called 

a. Histology 

b. Anatomy 

c. Ecology 

d. Taxonomy 


Answer- Histology


Que- In plants and mineral salts from soil to the aerial parts of the plant are conducted through  

a. Xylem vessels 

b. Phloem vessels 

c. Vascular bundle 

d. All of the above 


Answer- Xylem vessels


Que- Smooth muscles are likely to be found in 

a. Muscles of legs 

b. Muscles of arms 

c. Stomach 

d. Heart 


Answer- Stomach

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