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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