Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- What is the branch of biology in which structure and function of tissues are studied___________? 

a. Cell Biology  

b. Taxonomy  

c. Histology  

d. Morphology 


Answer- Histology


Que- Biometry is the application of_______ in biology. 

a. Algebra  

b. Statistics  

c. Matrix  

d. Geometry 


Answer- Statistics


Que- Study of insects is called_________? 

a. Immunology  

b. Parasitology  

c. Entomology  

d. Paleontology 


Answer- Entomology


Que- The term biology was introduced in__________ in 1800? 

a. Germany  

b. Turkey  

c. Italy  

d. Japan 


Answer- Germany


Que- Which of the following is the basic unit of classification___________? 

a. Species  

b. Genus  

c. Family  

d. Order 


Answer- Species


Que- Euglena belongs to the kingdom___________? 

a. Fungi  

b. Monera  

c. Protista  

d. Non of them 


Answer- Protista


Que- Viruses are considered living organisms because__________? 

a. They can be crystallized  

b. They occur in plants and animals  

c. They are microscopic  

d. They contain DNA and can be reproduced 


Answer- They contain DNA and can be reproduced


Que- All of the following are elements that plants need in very small amounts except___________? 

a. Iron  

b. Hydrogen  

c. Chlorine  

d. Copper 


Answer- Hydrogen


Que- Capillaries are the example of_________? 

a. Organ System  

b. Cell  

c. Organ  

d. Tissue 


Answer- Organ System


Que- Who discovered the living cell first time? 

a. Robert brown  

b. Robert hooke  

c. Rudolf virchow  

d. Antoni van leeuwenhoek 


Answer- Robert hooke


Que- Amoeba can move with the help of? 

a. Flagella  

b. Pseudopodia  

c. Water  

d. Cilia 


Answer- Pseudopodia


Que- Who is Called the Father of Demography? 

a. ALAN Turing  

b. John Dalton  

c. Charles Babbage  

d. IBN KHALDUN 


Answer- IBN KHALDUN


Que- The one which is present in all living things 

a. Cell nucleus  

b. DNA or RNA  

c. Cell membrane  

d. Vacuole 


Answer- DNA or RNA


Que- The study of nature is called__________? 

a. Science  

b. Atom  

c. Molecule  

d. Element 


Answer- Science


Que- Animals that eat plants are called___________________? 

a. Herbivores  

b. Consumer  

c. Carnivores  

d. Omnivores 


Answer- Herbivores


Que- _____________________ contains the green chemical called chlorophyll. 

a. Cytoplasm  

b. Cell membrane  

c. Chloroplasts  

d. Vacuole 


Answer- Chloroplasts


Que- _____________ is a scientific word for human beings? 

a. Animals  

b. Homo sepions  

c. Omnivore  

d. Consumer 


Answer- Homo sepions


Que- Lactometer is used for__________? 

a.  Ship  

b.  Milk  

c.  Honey  

d. None 


Answer-  Milk


Que- enzyme is_____________? 

a. bio catalyst  

b. hormone  

c. Gland  

d. None of these 


Answer- bio catalyst


Que- Exact replica of chromosome refers to ___________? 

a. Chromatid  

b. Centromere  

c. Kinetochore  

d. Arms 


Answer- Chromatid


Que- Density gradient  centrifugation separates the materials on the basis of__________? 

a. Size alone  

b. Density alone  

c. Both a & b  

d. Velocity of movement 


Answer- Both a & b


Que- Ribosomes are tiny Granules first studied in 1955 by__________? 

a. De-Duve  

b. Schwann  

c. August Weismann  

d. Palade 


Answer- Palade


Que- Virus consist of Parts:__________? 

a. 1.0 

b. 2.0 

c. 3.0 

d. 4.0 


Answer- 2.0


Que- I can break down fatty acid to succinate__________? 

a. Peroxisome  

b. Glyoxisome  

c. Lysosome  

d. Golgi bodies 


Answer- Glyoxisome


Que- Mitosis is divided into_____________? 

a. Karyokinesis  

b. Cytokinesis  

c. Interphase  

d. Both a & b 


Answer- Both a & b


Que- Ribosomes and DNA are also present in_________? 

a. mitochondria  

b. golgi complex  

c. endoplasmic reticulum  

d. lysosomes 


Answer- mitochondria


Que- Taking in liquid material into the cells is known as_________? 

a. Phagocytosis  

b. Pinocytosis  

c. Exocytosis  

d. Both a and b 


Answer- Pinocytosis


Que- Under a compound microscope chromosome is made of arms and___________? 

a. Centromere  

b. Centrosome  

c. Chromatid  

d. Centromere 


Answer- Centromere


Que- The main types of plastids are___________? 

a. Chloroplasts  

b. Chromoplasts  

c. Leucoplasts  

d. All of these 


Answer- All of these


Que- Fibers of the extracellular matrix is the characteristics of_______________? 

a. Plant cell wall  

b. Bacterial cell wall  

c. Cell membrane of bacteria  

d. Fluid mosaic model of cell membrane 


Answer- Fluid mosaic model of cell membrane


Que- Ribosomes were discovered by_______? 

a. Golgi  

b. De Duve  

c. Palade  

d. R.Brown 


Answer- Palade


Que- Which character differentiates living things from non-living organisms___________? 

a. They live in the same ecosystem.  

b. They are acted upon by the same environment  

c. They are highly organized and complex made of one or more cells and contain genetic material  

d. Both a and b 


Answer- They are highly organized and complex made of one or more cells and contain genetic material


Que- The study of fossils is called__________? 

a. Environmental Biology  

b. Historical biology  

c. Palaeontology  

d. Social biology 


Answer- Palaeontology


Que- A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called__________? 

a. Substrate  

b. Co-factor  

c. Inhibitor  

d. Promotor 


Answer- Inhibitor


Que- The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by________? 

a. Molecular biologists  

b. Microbiologists  

c. Freshwater biologists  

d. Social biologist 


Answer- Molecular biologists


Que- Percentage of water in brain cells is_______? 

a. 0.2 

b. 0.65 

c. 0.85 

d. 0.89 


Answer- 0.85


Que- The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called__________? 

a. An organ  

b. A molecule  

c. Tissue  

d. Both a and c 


Answer- A molecule


Que- Different species of plants and animals living in the same habitat is called ___________? 

a. Population  

b. Community  

c. Biome  

d. Habitat 


Answer- Community


Que- In animals coordination is achieved by means of_________? 

a. Respiratory system  

b. Nervous system  

c. Endocrine system  

d. Both b and c 


Answer- Both b and c


Que- ___________ is the potential surce of chemical energy for cellular activities? 

a. C-H bond  

b. C-O bond  

c. C-N bond  

d. P-O-C bond 


Answer- C-H bond


Que- The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called________? 

a. Environmental biology  

b. Social biology  

c. Human biology  

d. Both b and c 


Answer- Social biology


Que- The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by________? 

a. Environmental biologist  

b. Paleontologist  

c. Marine biologist  

d. Social biologist 


Answer- Paleontologist


Que- Group of living organisms of the same species living in the same place at the same time is called________? 

a. Community  

b. Population  

c. Ecosystem  

d. Biome 


Answer- Population


Que- Control of organisms by using living organisms is called_______? 

a. Bioremediation  

b. Integrated disease management  

c. Antisepsis  

d. Biological control 


Answer- Biological control


Que- Which one is a micromolecule__________? 

a. Polysaccharide  

b. Protein  

c. Hemoglobin  

d. ATP 


Answer- ATP


Que- Unbroken series of organisms arranged from ancestor to descendant sequence is____________? 

a. Biodiversity  

b. Phyletic lineage  

c. Connecting link  

d. Evolutionary line 


Answer- Phyletic lineage


Que- Out of 92 naturally occurring chemical elements how many are considered as bio-elements__________? 

a. 6.0 

b. 16.0 

c. 26.0 

d. 15.0 


Answer- 16.0


Que- A large regional community primarily determined by climate is called__________? 

a. Population  

b. Community  

c. Biome  

d. Habitat 


Answer- Biome


Que- Branch of biology which deals with the study of chemical components and chemical processes in living organisms is called________________? 

a. Molecular biology  

b. Physiology  

c. Biochemistry  

d. Atomic biology 


Answer- Biochemistry


Que- A structure formed by groups of similar cells organized into loose sheetsor bundles performing similar functions is called as________? 

a. An organ  

b. An organism  

c. A Tissue  

d. A Cell 


Answer- A Tissue


Que- Oxygen accounts for __________ percent of totals human body mass? 

a. 0.65 

b. 0.18 

c. 0.1 

d. 0.03 


Answer- 0.65


Que- Out of total organisms on earth, _____________are vascular plants? 

a. 0.531 

b. 0.199 

c. 0.176 

d. 0.094 


Answer- 0.176


Que- Breakdown of large molecules into smaller ones utilizing water molecules is_________? 

a. Hydration  

b. Hydrolysis  

c. Dehydration synthesis  

d. Electrolysis 


Answer- Hydrolysis


Que- Intake of liquid material by cell membrane is called___________? 

a. Endocytosis  

b. Exocytosis  

c. Phagocytosis  

d. Pinocytosis 


Answer- Pinocytosis


Que- Which one is not correct for a productive theory________? 

a. It is predictive  

b. It has explanatory power  

c. It discourages suggestion of different hypotheses  

d. None of these 


Answer- It discourages suggestion of different hypotheses


Que- ___________ is concerned with cell secretions? 

a. Endoplasmic reticulum  

b. Golgi complex  

c. Lysosomes  

d. Cell membrane 


Answer- Golgi complex


Que- Sythetic insulin from pork was formed by which technique__________? 

a. Parasitology  

b. Social biological techniques  

c. Biotechnology  

d. Both a and c 


Answer- Biotechnology


Que- Cytoskeleton involved in assembly and disassembly of the spindle during mitosis is of_________? 

a. Microtubules  

b. Microfilaments  

c. Intermediate filaments  

d. None of these 


Answer- Microtubules


Que- ___________ is used to relieve one kind of headache, migraine? 

a. Pencillin  

b. Lovastatin  

c. Cyclosporine  

d. Ergotin 


Answer- Ergotin


Que- Bacteria which grow either in the presence or absence of oxygen___________? 

a. Aerobic bacteria  

b. Anaerobic bacteria  

c. Facultative bacteria  

d. Microaerophilic 


Answer- Facultative bacteria


Que- It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect: 

a. Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones  

b. Older sediment layers have less amount of these reaioactive isotopes as that of the young ones.  

c. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.  

d. Older sediment layers did not have these radioactive isotopes 


Answer- Older sediment layers have less amount of these reaioactive isotopes as that of the young ones.


Que- Reverse transcriptase is present in____________? 

a. All RNA viruses  

b. All DNA viruses  

c. All retroviruses  

d. All viruses 


Answer- All retroviruses


Que- Destruction of all life forms is called___________? 

a. Sterilization  

b. Disinfection  

c. Antisepsis  

d. Preservation 


Answer- Sterilization


Que- Pox viruses are_________? 

a. RNA non-enveloped  

b. RNA enveloped  

c. DNA non-enveloped  

d. DNA enveloped 


Answer- DNA enveloped


Que- Pollen grains in pinus have __________ for dispersal through wind? 

a. Flagella  

b. Cilia  

c. Wings  

d. Feathers 


Answer- Wings


Que- The single healthy megaspore retained within the megasporangium germinates to form an egg containing female gaemtophyte called______________? 

a. Ovule  

b. Seed  

c. Fruit  

d. Embroyo sac 


Answer- Embroyo sac


Que- Alternation of generations is absent in___________? 

a. Hydration  

b. Obelia  

c. Jelly fish  

d. Physalia 


Answer- Hydration


Que- Double fertilization is feature of____________? 

a. Ferns  

b. Whisk ferns  

c. Gymnosperms  

d. Angiosperms 


Answer- Angiosperms


Que- If bile pigments are prevented from leaving digestive tract, then they cause_____________? 

a. Hepatitis  

b. Jaundice  

c. Gall stones  

d. Blockage 


Answer- Jaundice


Que- Initial pH of food vacuole during digestion in amoeba is____________? 

a. 5.3 

b. 5.6 

c. 7.3 

d. 7.6 


Answer- 5.6


Que- The arrangement of _________ speaks of the division of labour within cell? 

a. Molecule  

b. Subatomic particles  

c. Atoms  

d. Organelles 


Answer- Organelles


Que- NADH is oxidized by___________? 

a. Coenzyme ?  

b. Cytochrome b  

c. Oxygen  

d. Glycolysis 


Answer- Coenzyme ?


Que- Salivary glands present in front of ear are___________? 

a. Sublingual  

b. Submaxillary  

c. Submandibular  

d. Parotid 


Answer- Parotid


Que- How many spiracles are present in cockroach_____________? 

a. 5.0 

b. 10.0 

c. 20.0 

d. 40.0 


Answer- 20.0


Que- Which of the following is the correct sequence in the biological method? 

a. Observation?hypothesis?law?theory  

b. Observation?hypothesis?deduction?testing of deduction  

c. Hypothesis?observation?deduction?testing of deduction  

d. law?theory?deduction?observation 


Answer- Observation?hypothesis?deduction?testing of deduction


Que- Amphibians are considered to be evolved from___________? 

a. Newts  

b. Varanope  

c. Dipnoi  

d. Hagfishes 


Answer- Dipnoi


Que- Enterobius vermicularis is commonly known as____________? 

a. Flatworm  

b. Pinworm  

c. Hook worm  

d. Tapeworm 


Answer- Pinworm


Que- Red to orange pigments are_____________? 

a. Carotenes  

b. Carotenoids  

c. Xanthophylls  

d. Chlorophyll 


Answer- Carotenes


Que- Animals of which class of arthropoda are present everywhere_____________? 

a. Crustacean  

b. Insecta  

c. Arachnida  

d. Myriapoda 


Answer- Insecta


Que- Gaseous exchange in birds occurs at level of_______________? 

a. Alveoli  

b. Air sacs  

c. Bronchi  

d. Parabronchi 


Answer- Parabronchi


Que- ______________ of earth surface is covered with water? 

a. 0.1 

b. 0.3 

c. 0.75 

d. 0.9 


Answer- 0.75


Que- An antibody is made of _________ polypeptide chains? 

a. 1.0 

b. 2.0 

c. 3.0 

d. 4.0 


Answer- 4.0


Que- Production of genetically identical copies of organisms/cells by asexual reproduction is called__________? 

a. Mitosis  

b. Replication  

c. Cloning   

d. Biological control 


Answer- Cloning 


Que- 95% of the cytoplasm of RBCs is____________? 

a. Hemoglobin  

b. Enzymes  

c. Salts  

d. Other proteins 


Answer- Hemoglobin


Que- _________________ cells of phloem are directly involved in transport of organic solutes? 

a. Parenchyma  

b. Companion cell  

c. Tracheid  

d. Sieve element 


Answer- Sieve element


Que- An infectious disorder of respiratory system is_________________? 

a. Cancer  

b. Asthma  

c. Tuberculosis  

d. Emphysema 


Answer- Tuberculosis


Que- Cuticular transpiration is _____________ of total transpiration? 

a. 1-2%  

b. 3-4%  

c. 5-7%  

d. 0.9 


Answer- 5-7%


Que- According to cohesion-tension theory, tension is created by__________________? 

a. Hydrogen bonding  

b. Transpiration  

c. Adhesion  

d. Root prerssure 


Answer- Transpiration


Que- Deoxygenated blood first enters in _________ part in fishes? 

a. Sinus venosus  

b. Right atrium  

c. Left atrium  

d. Conus arteriosus 


Answer- Sinus venosus


Que- Ozone depletion occurs commonly due to_______________? 

a. Carbon dioxide  

b. Chlorofluorocarbons  

c. UV rays  

d. Deforestation 


Answer- Chlorofluorocarbons


Que- Who coined the term CELL? 

a. Schwann  

b. Schleiden  

c. Robert Hook  

d. Both a and b 


Answer- Robert Hook


Que- “lubb” sound is produced due to___________________? 

a. Opening of inlet valve  

b. Closure of inlet valve  

c. Opening of outlet valve  

d. Closure of outlet valve 


Answer- Closure of inlet valve


Que- In condition of high temperature, following does not occur or occurs at low level__________? 

a. Vasodilation  

b. Activation of sweat glands  

c. Thermogenesis  

d. Evaporative cooling 


Answer- Thermogenesis


Que- Who first observed and thus hypothesized that new cells are formed from previously existing living cell? 

a. Theodor Schwann and Schleiden  

b. Rudolph Virchows  

c. Louis Pasteur  

d. Both b and c 


Answer- Rudolph Virchows


Que- In Hardy-Weinberg formula P2 represents frequency of_____________? 

a. Recessive allele  

b. Dominant allele  

c. Homozygous dominant individual  

d. Homozygous recessive individual 


Answer- Homozygous dominant individual


Que- _____________ supported theory of special creation? 

a. Linnaeus  

b. Aristotle  

c. Mendel  

d. Lamarck 


Answer- Linnaeus


Que- Percentage of proteins in cell membrane is____________? 

a. 20-40%  

b. 40-50%  

c. 60-80%  

d. 80-100% 


Answer- 60-80%


Que- Which of the following is most constant abiotic component of ecosystem___________? 

a. Air  

b. Water  

c. Land  

d. Gravity 


Answer- Gravity


Que- Ecosystem not found in Pakistan is_____________? 

a. Tropical rain forest  

b. Temperate deciduous forest  

c. Grassland  

d. Tundra 


Answer- Tropical rain forest


Que- Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called__________? 

a. Active transport  

b. Passive transport  

c. Co-transport  

d. Counter transport 


Answer- Passive transport

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