Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- Who formulated Cell theory? 

a. Schwan 

b. M.J.Schleiden 

c. Henri Dutrochet 

d. Both Schawn and M.J.Scheilden 


Answer- Both Schawn and M.J.Scheilden


Que- Which of the following are known as the suicide bags of cells? 

a. Lysosomes 

b. Golgi bodies 

c. Nucleoli 

d. Ribosomes 


Answer- Lysosomes


Que- Which feature do Prokaryotic and Eukaryotic cells share 

a. Nucleus 

b. DNA 

c. Nuclear membrane 

d. Membrane bound Organelles 


Answer- DNA


Que- Which of the following contain enzymes for cellular respiration ? 

a. Dictyosomes 

b. Endoplasmic reticula 

c. Lysosomes 

d. Mitochondria 


Answer- Mitochondria


Que- The smallest unit that is capable of carrying out life functions is known as 

a. Tissue  

b. Cell  

c. Blood  

d. DNA  


Answer- Cell 


Que- Fusion of two gametes called 

a. Fertilization 

b. Development 

c. Regeneration 

d. Pollination 


Answer- Fertilization


Que- Flowers in which polllination takes place by insect their pollen grains are ________  

a. Smooth and dry 

b. Rough and sticky 

c. Rough and dry 

d. Large in Size 


Answer- Rough and sticky


Que- Ornithology is the study of 

a. Mammal 

b. Birds 

c. Fishes 

d. Bat 


Answer- Birds


Que- Pollination is best defined as 

a. Growth of pollen tube in ovule 

b. Visiting flowers by insects 

c. Germination of pollen grains 

d. Transfer of pollen from anther to stigma 


Answer- Transfer of pollen from anther to stigma


Que- Self pollination will lead to 

a. Inbreeding 

b. Over breeding 

c. Outbreeding 

d. Rare breeding 


Answer- Inbreeding


Que- Which one of the following is not a genetic disorder ? 

a. Colour blindness 

b. Down's syndrome 

c. Haemophilia 

d. Xerophthalmia 


Answer- Xerophthalmia


Que- Who is known as Father of Modern Genetics 

a. Charles Darwin  

b. Louis Pasteur  

c. Gregor Mendel  

d. Jean Baptiste Lamarck  


Answer- Gregor Mendel 


Que- Tracheids are conducting cells of which tissue? 

a. Xylem 

b. Phloem 

c. Cambium 

d. None of these 


Answer- Xylem


Que- The main function of the inner bark of a woody plant is to 

a. Transport minerals and water from the roots to the leaves 

b. Act as a membrane impermeable to water and gas 

c. Transport food from the leaves to the other parts of the plant 

d. Protect the plant from herbivorous animals 


Answer- Transport food from the leaves to the other parts of the plant


Que- Which one of the following tissues is responsible for increase of girth in the stem of a plant? 

a. Tracheid 

b. Pericycle 

c. Intercalary meristem 

d. Lateral meristem 


Answer- Lateral meristem


Que- Which of the following transports water from the roots of the plant to its leaves? 

a. Xylem 

b. Phloem 

c. Both xylem and phloem 

d. Cortex 


Answer- Both xylem and phloem


Que- The water and mineral salts are transported to the various organs by which of the following? 

a. Xylem 

b. Phloem 

c. Cortex 

d. Cambium 


Answer- Xylem


Que- What prevents food from entering the windpipe? 

a. Epiglottis 

b. Pharynx 

c. Trachea 

d. Larynx 


Answer- Epiglottis


Que- Which of the following is true of enzymes? 

a. Enzymes lowers the activation energy for the chemical reaction 

b. Enzymes speed up the rate of a chemical reaction 

c. Both A & B 

d. Neither A nor B 


Answer- Both A & B


Que- They substances,which assist enzymes act,are called 

a. Diastase 

b. Substrates 

c. Co-enzymes 

d. None of the above 


Answer- Substrates


Que- Biological catalysis in living organisms are known as 

a. Hormones 

b. Vitamins 

c. Steroids 

d. Enzymes 


Answer- Enzymes


Que- Which of the following is not a function of saliva? 

a. Contains fluoride to harden the tooth enamel 

b. Moistens food and helps stick it together to make it easier to swallow 

c. Begins the chemical breakdown of starches 

d. Helps clean the mouth 


Answer- Contains fluoride to harden the tooth enamel


Que- Pollen grains in plants are produced in 

a. roots 

b. leaves 

c. flower 

d. stem 


Answer- flower


Que- Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false? 

a. By cyanobacteria 

b. By electrical discharges in the atmosphere 

c. By industrially synthesised fertilizer 

d. By denitrification 


Answer- By denitrification


Que- Ptyalin is an enzyme produced in the 

a. salivary glands 

b. pituitary glands 

c. thyroid glands 

d. pancreas 


Answer- salivary glands


Que- Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes 

a. tetanus 

b. influenza 

c. cholera 

d. typhoid 


Answer- cholera


Que- The colour of Hemoglobin is 

a. Red  

b. Yellow  

c. White  

d. Colorless  


Answer- Red 


Que- The elastic vessels which transport blood to the heart is known as 

a. Arteries  

b. Veins  

c. Capillaries  

d. None of the above  


Answer- Veins 


Que- The elastic vessels which transport blood from the heart is known as 

a. Arteries  

b. Sinusoids  

c. Capillaries  

d. None of the above  


Answer- Arteries 


Que- White blood cell act 

a. As a defence against infection  

b. As a source of energy  

c. For clotting blood  

d. As a medium for oxygen transport from lung to tissues  


Answer- As a defence against infection 


Que- Protein synthesis in a bacterial cell is done by 

a. Centrioles  

b. Flagella  

c. Thylakoids  

d. Ribosomes  


Answer- Ribosomes 


Que- Which one is the first organelle to be discovered 

a. Chloroplast  

b. Nucleus  

c. Vacuole  

d. Lysosome  


Answer- Nucleus 


Que- The cell theory was proposed by 

a. Hook  

b. Schleiden  

c. Oken  

d. Darwin  


Answer- Hook 


Que- The Powerhouse of the cell is 

a. Chloroplast  

b. Nucleus  

c. Endoplasmic reticulum  

d. Mitochondria  


Answer- Mitochondria 


Que- Which of the following is an example of parasitism? 

a. Leeches consume blood of their host 

b. Ticks that live on dogs 

c. Aphid insects eat the sap of the host plant 

d. All of the above 


Answer- All of the above


Que- ________ is the interaction in which one species benefits and the other is neither harmed nor benefited. 

a. Predation 

b. Commensalism 

c. Competition 

d. Parasitism 


Answer- Commensalism


Que- Increased RBC's in the blood leads to a condition called 

a. Anemia  

b. Haemophilia  

c. Polycthemia  

d. Leukaemia  


Answer- Polycthemia 


Que- Platelet is also known as 

a. Leucocytes  

b. Erythrocytes  

c. Thrombocytes  

d. Phagocytosis  


Answer- Thrombocytes 


Que- Antibodies are produced by 

a. Lymphocytes  

b. Plasma cells  

c. RBCs  

d. T-cells  


Answer- Plasma cells 


Que- Oxygenated blood is carried from the lungs to the ________ by the pulmonary veins 

a. Right ventricle  

b. Left ventricle  

c. Right auricle  

d. Left auricle  


Answer- Left auricle 


Que- Which one is the largest cells in white blood corpuscles 

a. Lymphocytes  

b. Basophils  

c. Monoscytes  

d. Neutrophils  


Answer- Monoscytes 


Que- The term biology is derived from the language 

a. French 

b. Latin 

c. Purthgali 

d. Greek 


Answer- Greek


Que- Which structure is common to plant and animal cells? 

a. Centriole 

b. Chloroplast 

c. Central Vacuole 

d. Mitochondria 


Answer- Mitochondria


Que- Which observation proves that a cell is a eukaryote? 

a. It contains DNA 

b. It contains ribosomes 

c. It has a cell membrane 

d. It has DNA inside a nucleus 


Answer- It has DNA inside a nucleus


Que- Physical basis of life is 

a. Cytoplasm 

b. Neucleoplasm 

c. Protoplasm 

d. Haloplasm 


Answer- Protoplasm


Que- Where does cellular respiration take place in the cell? 

a. Cytoplasm 

b. Mitochodria 

c. Ribosomes 

d. Chromosomes 


Answer- Mitochodria


Que- Diphtheria disease is caused by  

a. Corynebacterium diphtheria 

b. Diplococus pneumo 

c. Pasteurella pestis 

d. Streptomyces species 


Answer- Corynebacterium diphtheria


Que- Which of the following disease is non-communicable in nature? 

a. Cholera 

b. Chicken-pox 

c. Tuberculosis 

d. Cancer 


Answer- Cancer


Que- When a disease break out and spread from one place to another affecting large number of peoples it is called 

a. Edemic 

b. Epidemic 

c. Endemic 

d. Sporadic 


Answer- Epidemic


Que- Which of the following disease is caused by female Anopheles mosquito? 

a. Chicken Pox 

b. Malaria 

c. Black Fever 

d. Cholera 


Answer- Malaria


Que- Which one among the following water-borne diseases is not caused by a bacteria ? 

a. Cholera 

b. Typhoid 

c. Bacillary dysentery 

d. Hepatitis A 


Answer- Hepatitis A


Que- Such plants which are adapted to survival under conditions a limited supply of water in its habitat are known as 

a. Hydrophytes 

b. Saprophytes 

c. Xerophytes 

d. Pteridophytes 


Answer- Xerophytes


Que- Azolla is a 

a. Algae 

b. Fungi 

c. Bryophyta 

d. Aqueous fern 


Answer- Aqueous fern


Que- Bamboo is classified as 

a. Tree 

b. Grass 

c. Shrub 

d. Herb 


Answer- Grass


Que- Bios means  

a. Study 

b. Life 

c. Fact 

d. True 


Answer- Life


Que- In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen? 

a. Annelida 

b. Chordata 

c. Arthropods 

d. Echinodermata 


Answer- Arthropods


Que- Source of infection in diseases like Tuberculosis, Mumps and Whooping cough is 

a. Direct contact 

b. Droplets of saliva 

c. Carrier organism 

d. A vector 


Answer- Droplets of saliva


Que- Anopheles mosquito carries Plasmodium which causes malaria in  

a. Humans 

b. Animals 

c. Sparrows 

d. All of the above 


Answer- Humans


Que- Anopheles mosquito carries Plasmodium which causes malaria in  

a. Humans 

b. Animals 

c. Sparrows 

d. All of the above 


Answer- Humans


Que- Which is called as triple vaccine? 

a. BCG  

b. DTP  

c. TAB  

d. All of the above  


Answer- DTP 


Que- Which of the following is an Abiotic factor? 

a. Plants 

b. Water 

c. Consumers 

d. Animals 


Answer- Water


Que- All insects have how many parts of legs? 

a. 2 

b. 3 

c. 4 

d. 6 


Answer- 3


Que- All living things except bacteria and blue green algae are termed as 

a. Prokayotes 

b. Lsosmes 

c. Eukaryotes 

d. None of the above 


Answer- Eukaryotes


Que- There are how many species of fungi? 

a. 80 species 

b. 800 species 

c. 8,000 species 

d. 80,000 species 


Answer- 80,000 species


Que- Which of the following is true of annelids? 

a. They have an open circulatory system 

b. They have a nerve net 

c. They perform gas exchange across their skin 

d. They have pseudocoeloms 


Answer- They perform gas exchange across their skin


Que- Which of the following has the largest number of chromosomes? 

a. Human beings 

b. Pteridophytes 

c. Elephants 

d. Bryophytes 


Answer- Pteridophytes


Que- Which of the following micro-organism causes diseases like polio and chicken pox? 

a. Bacteria 

b. Protozoa 

c. Algae 

d. Virus 


Answer- Virus


Que- What kingdom does Amoeba belong to 

a. Plantae 

b. Protista 

c. Monera 

d. Prokaryotae 


Answer- Protista


Que- Which bacteria cause the greatest harm in the food industry? 

a. Recycling 

b. Digestive 

c. Fermenting 

d. Pathogenic 


Answer- Pathogenic


Que- Bacteria divides by 

a. Binary Fission 

b. Spirilla 

c. RNA 

d. Fusion 


Answer- Binary Fission


Que- Important plant diseases like fire-blight and crown all are caused by 

a. Viruses 

b. Bacteria 

c. Fungi 

d. Protozoans 


Answer- Bacteria


Que- Study of nose and alfactory organs is called 

a. Radiology 

b. Rhinology 

c. Radiography 

d. None of these 


Answer- Rhinology


Que- The size of the pupil is controlled by the 

a. Retina 

b. Iris 

c. Cornea 

d. Lens 


Answer- Iris


Que- Bacteria are classified in the kingdom 

a. Animalia  

b. Fungi  

c. Monera  

d. Protista  


Answer- Monera 


Que- Which of the following animals shows radial symmetry 

a. Frog  

b. Pila  

c. Star Fish  

d. Fish  


Answer- Star Fish 


Que- Who introduced the ""binomial nomenclature"" to name organisms 

a. C. Darwin  

b. G. Mendel  

c. E. Mayer  

d. C. Linnaeus  


Answer- C. Linnaeus 


Que- Aestivation is seen in 

a. Amphibians  

b. Chimpanzee  

c. Salmon  

d. Squirrels  


Answer- Amphibians 


Que- Which one is the largest animal phylum 

a. Arthropod  

b. Mollusca  

c. Chordata  

d. Coelomates  


Answer- Arthropod 


Que- A typical chromosome has two parts a centrifuge and ________ 

a. Blastomeres 

b. Chromosomes 

c. Centrosomes 

d. Ribosomes 


Answer- Chromosomes


Que- How does a Unicellular Organism reproduce? 

a. Cell division 

b. Cell reproduction 

c. Cell synthesis 

d. Fragmentation 


Answer- Cell division


Que- Healing of wounds is dependent upon the ________ division of underlying cells 

a. Meiosis 

b. Mitotic 

c. Budding 

d. None of the above 


Answer- Mitotic


Que- It is formed by a repeating nucleosome units ,which are closely attached to each other to a continuous fibre. 

a. Chromatin 

b. Centromere 

c. Chromosome 

d. DNA 


Answer- Chromatin


Que- It is the site of chromosomes attachment to the fiber of spindle. 

a. Chromomere 

b. Centromere 

c. Centrosme 

d. Blastomere 


Answer- Centromere


Que- ________ helps the eye to adjust the focal length of the lens. 

a. Lens 

b. Ciliary body 

c. Retina 

d. Entire eye ball 


Answer- Ciliary body


Que- Eustachian Tube is located in which part of human body? 

a. Nose 

b. Ear 

c. Eyes 

d. Throat 


Answer- Ear


Que- Glomerulus and Bowman's capsule constitute 

a. Blood vessels 

b. Malpighian body 

c. Green gland 

d. Malpighian tubule 


Answer- Malpighian tubule


Que- The kidneys are stimulated to produce renin 

a. When the pH of the urine decreases 

b. When the specific gravity of urine rises above 1.10 

c. When the peritubular capillaries are dilated 

d. By a decrease in the blood pressure 


Answer- By a decrease in the blood pressure


Que- In mammals, an important role of excretion is played by________  

a. Large intestine 

b. Kidneys 

c. Lungs 

d. Liver 


Answer- Kidneys


Que- Salts and sugars work to preserve foods by creating a 

a. Hypertonic environment 

b. Lower pH 

c. Depletion of nutrients 

d. Lower osmotic pressure 


Answer- Hypertonic environment


Que- Movement of cell against concentration gradient is called 

a. Active transport 

b. Diffusion 

c. Osmosis 

d. Passive transport 


Answer- Active transport


Que- Which one among the following Indian scientists proposed a theory for long distance transport of water in plants ? 

a. J.C. Bose 

b. Birbal Sahni 

c. P. Maheshwari 

d. N.S. Parihar 


Answer- N.S. Parihar


Que- The movement of materials across the cell membrane with the help of biological energy provided by ATP is called 

a. Active Transport 

b. Passive Transport 

c. Endocytosis 

d. Fractionation 


Answer- Active Transport


Que- Which process requires no energy from the cell? 

a. Osmosis 

b. Diffusion 

c. Both A & B 

d. None of the above 


Answer- Both A & B


Que- What is the effect of oversecretion of hormone from pituitary gland? 

a. Increase growth in length 

b. Unbalanced development of body 

c. Body became curve 

d. None of the above 


Answer- Increase growth in length


Que- Which of the following is not a gland? 

a. Thyroid 

b. Gastrine 

c. Liver 

d. Pancreas 


Answer- Gastrine


Que- Oxytocin hormone is secreted by gland 

a. Pituitary 

b. Pineal 

c. Adrenal 

d. Ovary 


Answer- Pituitary


Que- Enlargment of _______ gland takes place due to deficiency of iodine 

a. Thyroid 

b. Pituitary 

c. Adrenal 

d. Parotid 


Answer- Thyroid


Que- Pepsin is a 

a. Hormone 

b. Enzyme 

c. Vitamin 

d. Mineral 


Answer- Enzyme


Que- The hormone which stimulates the stomach for the production of digestive juice is 

a. Gastrin 

b. Trysin 

c. Secretin 

d. Pepsin 


Answer- Gastrin


Que- Most absorption of nutrients occurs in the 

a. Stomach 

b. Liver 

c. Large intestine 

d. Small intestine 


Answer- Small intestine

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