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  



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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