Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- Which of the following is the largest digestive gland in humans? 

a. Spleen 

b. Liver 

c. Pancreas 

d. Hepato-Pancreas 


Answer- Hepato-Pancreas


Que- Which one among the following is the hardest part of our body ? 

a. Skull bones of head 

b. Thumb nails 

c. Enamel of teeth 

d. Spinal vertebra 


Answer- Enamel of teeth


Que- It is very serious disease of brain which is caused by fungi. 

a. Rust 

b. Meningitis 

c. Smut 

d. Ringworm 


Answer- Meningitis


Que- Administering a vaccine provides protection by inducing synthesis of antibodies (proteins) specific of the vaccine. The cell in the body responsible for the production of antibodies is 

a. Granulocyte 

b. Lymphocyte 

c. Erythrocyte (red blood cell) 

d. Platelet 


Answer- Lymphocyte


Que- As an infant, the ability to produce antibodies is 

a. About 80% of that of an adult 

b. Nonexistent 

c. Limited 

d. The same as an adult 


Answer- Limited


Que- Antigen is a substance which 

a. Lowers body temperature 

b. Destroys harmful bacteria 

c. Triggers the immune system 

d. Is used as an antidote to poison 


Answer- Triggers the immune system


Que- AIDS is caused by the organisms which are 

a. Bacteria 

b. Fungi 

c. Viruses (HTLV III) 

d. ProtoZoa 


Answer- Viruses (HTLV III)


Que- The camel's hump is composed of a tissue which provides water when oxidized. It is 

a. Skeletal tissue 

b. Areolar tissue 

c. Adipose tissue 

d. Muscular tissue 


Answer- Adipose tissue


Que- Which among the following is not a connective tissue? 

a. Blood 

b. Bone 

c. Skin 

d. Cartilage 


Answer- Skin


Que- The transport of organic substances in plants is through 

a. Xylem  

b. Phloem  

c. Fibers  

d. Wood  


Answer- Phloem 


Que- Who is regarded as father of Plant Tissue Culture 

a. Haberlandt  

b. White  

c. Linnaeus  

d. Skoog  


Answer- Haberlandt 


Que- What is common in both striated and cardiac cell 

a. Shape  

b. Number  

c. Striations  

d. Contractions  


Answer- Striations 


Que- Blood vessel bringing blood into Bowman's capsule is 

a. Afferent arteriole 

b. Efferent arteriole 

c. Renal vein 

d. Renal portal vein 


Answer- Afferent arteriole


Que- Which organ filters blood in human body? 

a. Lungs 

b. Heart 

c. Liver 

d. Kidneys 


Answer- Kidneys


Que- The renal corpuscle is made up of 

a. Bowman's capsule 

b. Glomerulus 

c. Both A & B 

d. None of the above 


Answer- Both A & B


Que- Main nitrogenous product formed in man 

a. Urea 

b. Ammonia 

c. Uric acid 

d. Ammonium nitrate 


Answer- Urea


Que- Loop of henry is related with 

a. Excretory system 

b. Reproductive system 

c. Urinogenital system 

d. Nervous system 


Answer- Excretory system


Que- Of the following ,which of the most fundamental generalization in biology? 

a. Micor-biology 

b. Microscope 

c. Cell theory 

d. Discovery of Cell 


Answer- Cell theory


Que- Where does protein synthesis take place? 

a. Nucleus 

b. Ribosomes 

c. On the cell wall 

d. All of the above 


Answer- Ribosomes


Que- Membrane bound pigment containing bodies present in the cells are called as 

a. Chloroplasts 

b. Plasmids 

c. Plastids 

d. Lipids 


Answer- Plastids


Que- Lysosome is formed from which of the following cell organelles? 

a. Nucleus 

b. Endoplasmic reticulum 

c. Golgi bodies 

d. Ribosomes 


Answer- Golgi bodies


Que- In the cell of animals ,some micro-organisms and lower plants contain 

a. One centriole 

b. Two centriole 

c. Three centriole 

d. Four centriole 


Answer- Two centriole


Que- Nephron is related to which of the following system of human body? 

a. Circulatory system 

b. Excretory system 

c. Reproductive system 

d. Respiratory system 


Answer- Excretory system


Que- Dialysis is used to perform the function of 

a. Lung 

b. Heart 

c. Liver 

d. Kidney 


Answer- Kidney


Que- Excretion is best described as the removal of 

a. Undigested material from the digestive tract 

b. Metabolic wastes from a cell 

c. Toxic wastes by the process of cyclosis 

d. Water molecules from dipeptide hydrolysis 


Answer- Metabolic wastes from a cell


Que- Islets of Langerhans are present in 

a. Kidney 

b. Liver 

c. Pancreas 

d. Trachea 


Answer- Pancreas


Que- Filtration of blood occur in 

a. Lung 

b. Bowmen's capsule 

c. Uriniferous tubule 

d. Ureater 


Answer- Bowmen's capsule


Que- The site of RBC formation in human body is 

a. Heart 

b. Spleen 

c. Liver 

d. Bone marrow 


Answer- Bone marrow


Que- Important component that helps in clotting of the blood is called ________ . 

a. Haemoglobin 

b. Platelets 

c. Serum 

d. Plasma 


Answer- Platelets


Que- The valve present between left auricle and left ventricle is 

a. Mitral 

b. Tricuspid 

c. Semilunar 

d. Pulmonary 


Answer- Mitral


Que- Function of heart in human body 

a. Work like pumping machines 

b. To release energy 

c. To increase temperature 

d. None of the above 


Answer- Work like pumping machines


Que- Function of hemoglobin is 

a. To transport oxygen 

b. Destruction of bacteria 

c. To check the loss of blood 

d. None of the above 


Answer- To transport oxygen


Que- The main function of the Golgi body is 

a. Respiration 

b. To begin cell division 

c. To produce gastric juice 

d. Secretion 


Answer- Secretion


Que- Which organelle is the control center of a cell? 

a. Nucleus 

b. Cytoplasm 

c. Cell membrane 

d. Endoplasmic reticulum 


Answer- Nucleus


Que- Which of the following organelles of a cell is involved in photosynthesis? 

a. Chloroplast 

b. Mitochondria 

c. Golgi bodies 

d. Endoplasmic reticulum 


Answer- Chloroplast


Que- The theory which states that all animals and plants are composed of cells and cell products is known as 

a. Cell Theory 

b. Atomic Theory 

c. Bohr's Theory 

d. None of the above 


Answer- Cell Theory


Que- Biologists mainly deal with matters relating to 

a. Living part of nature 

b. Non living things influencing living things 

c. How life works 

d. All three a b and c 


Answer- All three a b and c


Que- The process in which energy stored in carbohydrates is released 

a. Photosynthesis 

b. Respiration 

c. Reproduction 

d. Excretion 


Answer- Respiration


Que- What is the purpose of the mucus in your nose? 

a. Protects lungs 

b. Clear air passage 

c. Protects nose 

d. All of the above 


Answer- Protects lungs


Que- Precentage of CO2 found in exhaled air 

a. 0.04 

b. 0.08 

c. 0.12 

d. 0.16 


Answer- 0.04


Que- Muscles get tired when there is shortfall of ________ . 

a. Lactic acid 

b. Na+ ions 

c. ATP 

d. Sulphates 


Answer- ATP


Que- Cellular respiration is best associated with the 

a. Microtubule 

b. Ribosome 

c. Golgi apparatus 

d. Mitochondrion 


Answer- Mitochondrion


Que- Filtration of blood takes place in 

a. Heart 

b. Kidney 

c. Liver 

d. Spleen 


Answer- Kidney


Que- In Mammal urinary bladder open into 

a. Uterus 

b. Urethra 

c. Vestibule 

d. Ureter 


Answer- Urethra


Que- Nephrology is the study of 

a. Lung 

b. Kidney 

c. Heart 

d. Brain 


Answer- Kidney


Que- The organs of the urinary system are 

a. Kidney 

b. Urinary bladder 

c. Ureter 

d. All of the above 


Answer- All of the above


Que- The basic functional unit of Kidney is 

a. Loop Henele's 

b. Nephron 

c. Nephridium 

d. Pyramid 


Answer- Nephron


Que- The scientific study of plants is termed as 

a. Zoology 

b. Botany 

c. Ecology 

d. Taxonomoy 


Answer- Botany


Que- Lobsters belong to which one of the following classes of organisms ? 

a. Arachnids 

b. Crustaceans 

c. Insects 

d. Myriopods 


Answer- Crustaceans


Que- Fishes have a ________ chambered heart. 

a. Single 

b. Three 

c. Four 

d. Two 


Answer- Two


Que- Which one of the following is not a chordate ? 

a. Starfish 

b. Dolphin 

c. Shark 

d. Snake 


Answer- Starfish


Que- Carica papaya is the scientific name of ________ . 

a. Peepal 

b. Papaya 

c. Tamarind 

d. Drumstick 


Answer- Papaya


Que- Which is the innermost layer of the heart 

a. Epicardium  

b. Endocardium  

c. Myocardium  

d. Pericardium  


Answer- Endocardium 


Que- ________ is a hormone that regulates the amount of glucose in the blood. 

a. Glucogen 

b. Thyroxine 

c. Oxytocin 

d. Insulin 


Answer- Insulin


Que- Which one of following is known as pace maker of endocrine gland 

a. Thyroxin 

b. Calcitonin 

c. Insulin 

d. Adrenalin 


Answer- Thyroxin


Que- The rate of heartbeat is accelerated by the hormone 

a. Adrenaline 

b. Acetylcholine 

c. Thyroxine 

d. Pituitrin 


Answer- Adrenaline


Que- Cortisol is secreted by 

a. Thyroid gland 

b. Pituitary gland 

c. Adrenal gland 

d. Parathyroid gland 


Answer- Adrenal gland


Que- Slow oxidative muscle fiber are best suited for 

a. Hitting football 

b. Heavy workout in the gym 

c. Running a marathon 

d. None of the above 


Answer- Running a marathon


Que- In which body cavities are the lungs located 

a. Pelvic cavity 

b. Thoracic cavity 

c. Abdominal cavity 

d. Body cavity 


Answer- Thoracic cavity


Que- The molecule that is the main source of ATP synthesis 

a. Glucose  

b. Triglycerides  

c. Proteins  

d. Cholesterol  


Answer- Glucose 


Que- Lungs are covered by 

a. Pericardium  

b. Pleura  

c. Peritoneum  

d. Meninges  


Answer- Pleura 


Que- Accumulation of which one of the following in the leads to cramp? 

a. Lactic acid 

b. Ethanol 

c. Pyruvic acid 

d. Glucose 


Answer- Lactic acid


Que- Photosynthesis occurs in 

a. Nucleus  

b. Mitochondria  

c. Chloroplast  

d. Peroxisome  


Answer- Chloroplast 


Que- Sulphur Dioxide pollution is indicated by an excessive growth of which of the following? 

a. Algal Blooms 

b. Lichens 

c. Bryophytes 

d. Protozoa 


Answer- Lichens


Que- Food wrapped in news paper is likely to get contaminated by  

a. Magnesium 

b. Alluminium 

c. Lead 

d. Copper 


Answer- Lead


Que- What is full form of BOD? 

a. Biological Oxygen Deficit 

b. Biological Oxygen Difference 

c. Biological Oxygen Demand 

d. Biological Oxygen Distribution 


Answer- Biological Oxygen Demand


Que- A species inhabiting different geographical areas is known as 

a. Allopatric species 

b. Sympatric species 

c. Bio species 

d. Sibling species 


Answer- Allopatric species


Que- Lichen is a composite combination of two organisms. 

a. Fungi and Bryophyta 

b. Fungi and Fern 

c. Algae and Bryophyta 

d. Algae and Fungi 


Answer- Algae and Fungi


Que- Nitrogen Fixation is carried out primarily by 

a. Plants 

b. Humans 

c. Consumers 

d. Bacteria 


Answer- Bacteria


Que- Organisms that depend only on raw plant products are said to be  

a. Herbivorous 

b. Vegetarian 

c. Carnivorous 

d. Omnivorous 


Answer- Herbivorous


Que- The scientific study of how organisms interact with their environment is called 

a. Ecology  

b. Evolution  

c. Zoology  

d. None of the above  


Answer- Ecology 


Que- In a cell process of respiration takes place in 

a. Mitochondria 

b. Plastids 

c. Ribosomes 

d. Lysosomes 


Answer- Mitochondria


Que- It is the basic structure found in all membranes such as those of mitochonchondria and chloroplasts. 

a. Nuclear membrane 

b. Unit membrane 

c. Plasma membrane 

d. Cell wall 


Answer- Unit membrane


Que- Which one is found in a pair in each Chromosome 

a. Genes  

b. Nuclei  

c. Bases  

d. Chromatids  


Answer- Chromatids 


Que- Ribosomes are produced in 

a. Nucleolus  

b. Plasmid  

c. Mitochondria  

d. Non of the above  


Answer- Nucleolus 


Que- Which cell feature is responsible for storing water ? 

a. Vacuole  

b. Lysosome  

c. Mitochondria  

d. Non of the above  


Answer- Vacuole 


Que- Photosynthesis takes place in the presence of chlorophyll and ________ . 

a. Water 

b. Nutrients 

c. Carbon-dioxide 

d. Sunlight 


Answer- Sunlight


Que- One of the following cannot be performed by animals 

a. Respiration 

b. Photosynthesis 

c. Reproduction 

d. Digestion 


Answer- Photosynthesis


Que- Green pigment is called 

a. Chlorophyll 

b. Xanthophyll 

c. Carotene 

d. Phycobillin 


Answer- Chlorophyll


Que- Plants utilise ________ from the atmosphere for photosynthesis 

a. Oxygen 

b. Nitrogen 

c. Carbon dioxide 

d. Hydrogen 


Answer- Carbon dioxide


Que- In Photosynthesis 

a. Light energy is converted into chemical energy 

b. Chemical energy is converted into light energy 

c. Chemical energy is converted into electrical energy 

d. Light energy is converted into mechanical eneargy 


Answer- Light energy is converted into chemical energy


Que- Which among the following does not have a cell wall? 

a. Euglena 

b. Paramecium 

c. Gonyaulax 

d. Mycoplasma 


Answer- Mycoplasma


Que- The ability to fix atmospheric nitrogen is found in the  

a. Leaves of some crop plants 

b. Some marine red algae 

c. Some blue-green algae 

d. Cholrella 


Answer- Some blue-green algae


Que- Which is the cause of malaria infection? 

a. Bacteria 

b. Plasmodium 

c. Algae 

d. Viruses 


Answer- Plasmodium


Que- In human beings influenza is caused by 

a. Bacteria 

b. Viruses 

c. Fungi 

d. Algae 


Answer- Viruses


Que- Asthma is caused due to 

a. Infection of trachea 

b. Infection of lung 

c. Bleeding into pleural cavity 

d. Spasm in bronchial muscles 


Answer- Spasm in bronchial muscles


Que- Cancer is caused by 

a. Loss of immunity of cells 

b. Uncontrolled meiosis 

c. Uncontrolled mitosis 

d. Rupturing of cells 


Answer- Uncontrolled mitosis


Que- Sickle-cell anemia is a disease caused due to the abnormality in 

a. White blood cell 

b. Red blood cell 

c. Thrombocytes 

d. Blood plasma composition 


Answer- Red blood cell


Que- In which phylum nerve cells are found but nerves are absent ? 

a. Porifera 

b. Coelenterata 

c. Platyhelminthes 

d. Nemathelminthes 


Answer- Coelenterata


Que- The non-vascular land plants are included in the group called  

a. Thallophyta 

b. Bryophyta 

c. Tracheophyta 

d. Pteridophyta 


Answer- Bryophyta


Que- The animals in which the body cavity is absent are known as ________ . 

a. Coelomates 

b. Wild 

c. Pseudocoelomates 

d. Acoelomates 


Answer- Acoelomates


Que- Who is called the Father of Taxonomy? 

a. Aristotle 

b. Carolus Linnaeus 

c. Theophrastus 

d. Lamarck 


Answer- Carolus Linnaeus


Que- Spiders belong to the phylum 

a. Mollusca 

b. Annelida 

c. Cnidaria 

d. Arthropoda 


Answer- Arthropoda


Que- Oxygen crosses a plasma membrane by 

a. Osmosis 

b. Evaporation 

c. Concatenation 

d. Diffusion 


Answer- Osmosis


Que- Which of the following is true of osmosis? 

a. It is a type of diffusion 

b. Movement is against water's concentration gradient 

c. Requires energy 

d. All of the above 


Answer- All of the above


Que- The water readily available to plants for absorption by roots is 

a. Gravitational water 

b. Rain water 

c. Hygroscopic water 

d. Capillary water 


Answer- Capillary water


Que- The process of evaporation occurs from 

a. Root 

b. Stem 

c. Leaf 

d. Entire 'plants' surface 


Answer- Leaf


Que- Which process requires cellular energy? 

a. Passive transport 

b. Active transport 

c. Both A & B 

d. None of the above 


Answer- Active transport


Que- Psidium guajava is the scientific name of ________ . 

a. Guava 

b. Mango 

c. Bamboo 

d. Jack fruit 


Answer- Guava


Que- Grevillea Robusta is the scientific name of ________ . 

a. Peepal 

b. Teak 

c. Silver Oak 

d. Jack fruit 


Answer- Silver Oak

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