Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- The branch of Biology which deals with the use of data and techniques of engineering & technology concerning living organisms is: 

a. Human Biology  

b. Environmental Biology  

c. Genetics  

d. Bio-technology 

Answer- Bio-technology

Que- The branch in which organism's life cycle, mode of transmission and interaction with their hosts are studied is: 

a. Anatomy  

b. Physiology  

c. Parasitology  

d. Social Biology 

Answer- Parasitology

Que- The molecules of living matter that provide building blocks are mostly based on: 

a. Carbon  

b. Nitrogen  

c. Hydrogen  

d. Ammonia 

Answer- Carbon

Que- Human blood is an example of__________? 

a. Organelle  

b. Tissues  

c. Organic compound  

d. Inorganic compounds 

Answer- Tissues

Que- With different chemical arrangements and formation Of complex molecules, the life emerges on the level of the ? 

a. Cells  

b. Tissues  

c. Organs  

d. Organ System 

Answer- Cells

Que- Organelles are_______________? 

a. Unicellular structures  

b. Multi-cellular structures  

c. Sub-cellular structures  

d. Non-cellular structures 

Answer- Sub-cellular structures

Que- Functional unit of DNA Is____________? 

a. Nucleus  

b. Genes  

c. Chromosomes  

d. Nucleolus 

Answer- Genes

Que- Various tissue types combine to make up__________? 

a. Cells  

b. Organs  

c. Organ System  

d. Organelles 

Answer- Organs

Que- Two or more populations of different species living and interacting in the same area form 

a. Biosphere  

b. Community  

c. Population System  

d. Ecosystem 

Answer- Community

Que- A group of similar cells that perform a specific function is: 

a. Organ  

b. Tissues  

c. Organelle  

d. Organ System 

Answer- Tissues

Que- Which of the following is an example of “molecule”? 

a. Chloroplast  

b. A Nerve Cell  

c. DNA  

d. Hydrogen 

Answer- DNA

Que- A group of very similar inter breeding organisms constitutes? 

a. Biosphere  

b. Ecosystem  

c. Population  

d. Species 

Answer- Species

Que- Members of one species inhabiting the same are form__________? 

a. Species  

b. Community  

c. Ecosystem  

d. Population 

Answer- Population

Que- On the basis of collected facts and figures, a scientist formulates a factitive statement called: 

a. Observation  

b. Research work  

c. Hypothesis  

d. Inductive Reasoning 

Answer- Hypothesis

Que- Robert Hooke discovered_____________? 

a. Nucleus  

b. Mitochondria  

c. Cell  

d. DNA 

Answer- Cell

Que- Steps Involved in scientific method are ? 

a. Hypothesis –>Accumulated data –> observation & experimentation –> conclusion  

b. New data —> Conclusion —> Accumulated data —> Observation & experimentation  

c. Accumulated data – New data – Observation & experimentation – Hypothesis –> Conclusion  

d. Accumulated data —> Hypothesis –> Observation & experimentation —> New data —> Conclusion 

Answer- Accumulated data —> Hypothesis –> Observation & experimentation —> New data —> Conclusion

Que- Malaria is associated with___________? 

a. Culex Mosquito  

b. Culiesta Mosquito  

c. Anopheles Mosquito  

d. Culex & Anopheles Mosquito 

Answer- Anopheles Mosquito

Que- Biologist 'Grass' discovered the life cycle of plasmodium in_______? 

a. 1896.0 

b. 1897.0 

c. 1898.0 

d. 1899.0 

Answer- 1898.0

Que- The first antibiotic to be discovered was_____________? 

a. Penicillin  

b. Cephalosporin  

c. Amino glycosides  

d. Erythromycin 

Answer- Penicillin

Que- Immunization by vaccination was first introduced by? 

a. Fleming in 1945  

b. Florey & Chain in 1975  

c. Flore & Chain in 1795  

d. Edward Jenner in 1795 

Answer- Edward Jenner in 1795

Que- The Science of growing terrestrial plants in an aerated solution is_________? 

a. Hydrodynamics  

b. Hydroponics  

c. Hydrotonics  

d. None of them 

Answer- Hydroponics

Que- An educated guess is called: 

a. Accumulated Data  

b. Observation  

c. Hypothesis  

d. Conclusion 

Answer- Hypothesis

Que- Dolly, the sheep was a highly successful clone from a somatic cell, reported back in________? 

a. 1993.0 

b. 1994.0 

c. 1995.0 

d. 1996.0 

Answer- 1996.0

Que- Crop rotation helps in______________? 

a. Growth of pathogens  

b. Soil Infertility  

c. Slowing of crops growth  

d. Eradication of disease 

Answer- Eradication of disease

Que- People living in high altitudes (like mountains) usually have a _________? 

a. smaller number of Red Blood Cells  

b. larger number of Red Blood Cells  

c. smaller number of White Blood Cells  

d. larger number of White Blood Cells 

Answer- larger number of Red Blood Cells

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

a. They live in the same ecosystem.  

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

c. They are acted upon by the same environment  

d. Both a and b 

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

Que- Which Vitamin is needed for the formation of a light-sensitive pigment in the retina. 

a. Vitamin A  

b. Vitamin C  

c. Vitamin D  

d. B complex 

Answer- Vitamin A

Que- The average internal temperature of human body is __________? 

a. 35 oC  

b. 36 oC  

c. 37 oC  

d. 38 oC 

Answer- 37 oC

Que- The study of fossils is called? 

a. Environmental Biology  

b. Historical biology  

c. Palaeontology  

d. Social biology 

Answer- Palaeontology

Que- About __________ of the body weight of a mammal is water ? 

a. 0.6 

b. 0.65 

c. 0.7 

d. 0.75 

Answer- 0.7

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- On wound __________ fight foreign particles, like bacteria? 

a. White Blood cells  

b. Red Blood Cells  

c. Platelets  

d. Plasma 

Answer- White Blood cells

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

a. Biotechnology  

b. Social biological techniques  

c. Parasitology  

d. Both a and c 

Answer- Biotechnology

Que- Blood is carried towards the heart by __________? 

a. Arteries  

b. Capillaries  

c. Veins  

d. none of these 

Answer- Veins

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- __________ is essential for the formation of hemoglobin. 

a. Calcium  

b. Iron  

c. Water  

d. Carbohydrates 

Answer- Iron

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- ___________ are needed as a source of energy for the vital activities of the body? 

a. Calcium  

b. Iron  

c. Water  

d. Carbohydrates 

Answer- Carbohydrates

Que- Oxygen accounts for ____ % of totals human body mass? 

a. 0.65 

b. 0.18 

c. 0.1 

d. 0.03 

Answer- 0.65

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- Which one of them is a micro-molecule? 

a. Polysaccharide  

b. Protein  

c. Hemoglobin  

d. ATP 

Answer- ATP

Que- A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as: 

a. An organ  

b. An organism  

c. A Tissue  

d. A Cell 

Answer- A Tissue

Que- Haemodialysis means cleaning of____________? 

a. Urine  

b. Blood  

c. Glomerular filterate  

d. Coelomic fluid 

Answer- Blood

Que- In animals coordination is achieved by means of? 

a. Nervous system  

b. Endocrine system  

c. Respiratory system  

d. Both A and B 

Answer- Both A and B

Que- Production of sweat and sebum is related with ? 

a. Skin  

b. Liver  

c. Lungs  

d. GIT 

Answer- Skin

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- The evaporative cooling in the respiratory tract of dogs is called? 

a. Vasodilation  

b. Vasoconstriction  

c. Panting  

d. All of these 

Answer- Panting

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- Which of the following pathogen type cause disease that can be treated with antibiotics ? 

a. bacteria  

b. fungi  

c. virus  

d. none of these 

Answer- bacteria

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

a. Population  

b. Community  

c. Biome  

d. Habitat 

Answer- Biome

Que- Most cell membranes are composed principally of ? 

a. DNA ad protein  

b. Protein and Lipids  

c. Protein and Chitin  

d. Protein and RNA 

Answer- Protein and Lipids

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- Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ? 

a. Concentration of water molecules inside and outside the cell  

b. Concentration of enzymes on either side of the cell membrane  

c. Rate of molecular motion on either side of the cell membrane  

d. None of these 

Answer- Concentration of water molecules inside and outside the cell

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 radioactive isotopes as that of the young ones  

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

Que- Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of 

a. Diffusion  

b. Passive transport  

c. Osmosis  

d. Active transport 

Answer- Active transport

Que- An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called? 

a. Biome  

b. Phyletic lineage  

c. Community  

d. Population 

Answer- Phyletic lineage

Que- Proteins are made from amino acids by the process of ______________? 

a. Hydrolysis  

b. Pinocytosis  

c. Dehydration synthesis  

d. Active transport 

Answer- Dehydration synthesis

Que- Biological sciences have a set methodology and it is based on ? 

a. Experimental inquiry  

b. Esthetic preference  

c. Philosophical ideas  

d. Imaginations 

Answer- Experimental inquiry

Que- Which is an organic compound found in most cells ? 

a. Water  

b. Glucose  

c. Oxygen  

d. Sodium chloride 

Answer- Glucose

Que- A series of hypothesis supported by the results of many tests is called ? 

a. Scientific law  

b. Theory  

c. Data  

d. Deduction 

Answer- Theory

Que- Which are the four most abundant elements in living cells ? 

a. carbon, oxygen, nitrogen, sulfur  

b. carbon, oxygen, hydrogen, nitrogen  

c. carbon, oxygen, sulfur, phosphorus  

d. carbon, sulfur, hydrogen, magnesium 

Answer- carbon, oxygen, hydrogen, nitrogen

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- Conclusion of Mendels work latter became a_____________? 

a. Scientific hypothesis  

b. Theory  

c. Scientific law  

d. Productive theory 

Answer- Scientific law

Que- Starch is converted into maltose by? 

a. diastase  

b. invertase  

c. maltase  

d. amylase 

Answer- diastase

Que- Breeders have developed new and better varieties of food items by using which technique? 

a. Pasteurization  

b. Hydroponic culture technique  

c. Genetic engineering  

d. Biological control techniques 

Answer- Genetic engineering

Que- Co-enzyme is often formed from ? 

a. lipid  

b. protein  

c. inorganic ion  

d. vitamin 

Answer- vitamin

Que- Production of genetically identical copies of organisms/cells by asexula reproduction is called ? 

a. Mitosis  

b. Replication  

c. Cloning  

d. Biological control 

Answer- Cloning

Que- Messenger RNA is formed in_________? 

a. nucleus  

b. chloroplast  

c. mitochondria  

d. none of these 

Answer- nucleus

Que- Astronauts may use which technique to grow fruits and vegetables ? 

a. Tissue culture techniques  

b. Cloning  

c. Pasterisation  

d. Hydroponic culture technique 

Answer- Hydroponic culture technique

Que- Number of chromosomes in E.coli ? 

a. 1.0 

b. 2.0 

c. 4.0 

d. 6.0 

Answer- 1.0

Que- Which statement is incorrect for pasteurization? 

a. It is used to preserve yogurt and milk  

b. It was developed by Louis Pasteur.  

c. It involves heating the substance at high temperature for just few sec.  

d. It can be used to preserve vegetables and meat. 

Answer- It can be used to preserve vegetables and meat.

Que- Protein factory is___________? 

a. nucleus  

b. ribosome  

c. golgi complex  

d. centriole 

Answer- ribosome

Que- What is the mode of transmission of Hepatitis virus? 

a. Aerosol  

b. Parentral (via blood)  

c. Skin penetration  

d. Unknown 

Answer- Parentral (via blood)

Que- Smallest disease causing agents in plants are ? 

a. virion  

b. mycoplasma  

c. viroids  

d. prions 

Answer- viroids

Que- Which disease can be controlled by vaccination? 

a. Measles  

b. Cancer  

c. Diabetes  

d. Heart attack 

Answer- Measles

Que- The major cell infected by the HIV is lymphocyte ? 

a. helper-T  

b. B  

c. both T and B  

d. none of these 

Answer- helper-T

Que- Vaccine was first developed by_______________? 

a. Louis Pasture  

b. Edward Jenner  

c. Jaber Ibn Hayan  

d. Aristotle 

Answer- Edward Jenner

Que- Pigment present in red algae is_____________? 

a. fucoxanthin  

b. phycocyanin  

c. phycoerythrin  

d. bilirubin 

Answer- phycoerythrin

Que- Which disease has been totally eradicated from the world because of effective vaccination? 

a. Measles  

b. Polio  

c. Small pox  

d. Hepatitis 

Answer- Small pox

Que- Nutrition in fungi is___________? 

a. Photosynthetic  

b. Chemosynthetic  

c. Completely parasitic  

d. Absorptive heterotrophs 

Answer- Absorptive heterotrophs

Que- Which of the following statement is incorrect about antibiotics? 

a. They are used against microorganisms  

b. They are always effective against bacteria  

c. They are used in diseases like tuberculosis and pneumonia  

d. They are derived from bacteria only 

Answer- They are derived from bacteria only

Que- Fungi resemble plants because they lack___________? 

a. Cell wall  

b. Cytoplasm  

c. Centriole  

d. Nucleus 

Answer- Centriole

Que- Which treatment is instituted in a cancerous patient? 

a. Antibiotic therapy  

b. Radiotherapy  

c. Gene therapy  

d. None of these 

Answer- Radiotherapy

Que- Which is a parasitic plant? 

a. cuscuta  

b. rose  

c. ferns  

d. mosses 

Answer- cuscuta

Que- Which statement is incorrect for cloning? 

a. The nucleus of a fertilized egg is replaced by the nucleus from the cell of a fully developed individual  

b. Division of a single egg into one or more separate embryos.  

c. The individual is the mirror image of the parent organism  

d. It involve methods of sexual reproduction 

Answer- It involve methods of sexual reproduction

Que- True roots absent in_____________? 

a. ferns  

b. bryophytes  

c. gymnosperms  

d. angiosperms 

Answer- bryophytes

Que- Removal or degradation of environmental pollutants or toxic materials by living organisms is called__________? 

a. Integrated disease management  

b. Hydroponic culture technique  

c. Pasteurization  

d. Bioremediation 

Answer- Bioremediation

Que- The mechanism for ATP synthesis is_____________? 

a. Chemosynthesis  

b. Photosynthesis  

c. Phosphorylation  

d. Chemiosmosis 

Answer- Chemiosmosis

Que- Which of the following is not a viral disease? 

a. Cowpox  

b. Mumps  

c. Tetanus  

d. Small pox 

Answer- Tetanus

Que- Enzyme present in the saliva is_____________? 

a. lipase  

b. trypsin  

c. ptyalin  

d. invertase 

Answer- ptyalin

Que- In human body 99% of total mass is formed of_____________? 

a. 16 Bio-elements  

b. 12 Bio-elements  

c. 10 Bio-elements  

d. 6 Bio-elements 

Answer- 6 Bio-elements

Que- Nitrogen is present in___________? 

a. carbohydrates  

b. proteins  

c. lipids  

d. carbonates 

Answer- proteins

Que- Biological organization is_____________? 

a. simple  

b. advance  

c. complex  

d. highly complex 

Answer- highly complex

Que- Operculum is present in_____________? 

a. bony fish  

b. sea fish  

c. cartilaginous fish  

d. none of these 

Answer- bony fish

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

a. Molecule  

b. Subatomic particles  

c. Atoms  

d. Organelles 

Answer- Organelles

Que- In which animal respiratory surface are found in more than one organ? 

a. birds  

b. human  

c. fish  

d. frog 

Answer- frog

Que- Communities are ________ collection of organisms? 

a. Static  

b. Dynamic  

c. May be static or dynamic  

d. None of these 

Answer- Dynamic

Que- The heart is enclosed in a membrane called________? 

a. pleura  

b. pericardium  

c. peritoneum  

d. epithelium 

Answer- pericardium

Que- The number of species of organisms currently known to science is? 

a. 3500000.0 

b. 35000.0 

c. 2500000.0 

d. 2.5E7 

Answer- 2500000.0

Que- From right ventricle blood is pushed into? 

a. pulmonary trunk  

b. brain  

c. aorta  

d. body 

Answer- pulmonary trunk

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