Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 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- 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- 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- 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- 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- 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 is a micromolecule? 

a. Polysaccharide 

b. Protein 

c. Hemoglobin 

d. ATP 

Answer- ATP

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- 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- 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- Different species of plants and animals living in the same habitat is called : 

a. Population 

b. Community 

c. Biome 

d. Habitat 

Answer- Community

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

a. Population 

b. Community 

c. Biome 

d. Habitat 

Answer- Biome

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- 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- 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- 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- 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 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- 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- Production of genetically identical copiies of organisms/cells by asexula reproduction is called 

a. Mitosis 

b. Replication 

c. Cloning 

d. Biological control 

Answer- Cloning

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- 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- 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- Which disease can be controlled by vaccination? 

a. Measles 

b. Cancer 

c. Diabetes 

d. Heart attack 

Answer- Measles

Que- Vaccine was first developed by 

a. Louis Pasture 

b. Edward Jenner 

c. Jaber Ibn Hayan 

d. Aristotle 

Answer- Edward Jenner

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- 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- Which treatment is instituted in a cancerous patient: 

a. Antibiotic therapy 

b. Radiotherapy 

c. Gene therapy 

d. None of these 

Answer- Radiotherapy

Que- Which statement is incorrect for cloning? 

a. The nucleus of a fertillized 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- 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- Which of the following is not a viral disease? 

a. Cowpox 

b. Mumps 

c. Tetanus 

d. Small pox 

Answer- Tetanus

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

a. 16 bioelements 

b. 12 bioelements 

c. 10 bioelements 

d. 6 bioelements 

Answer- 6 bioelements

Que- Biological organization is 

a. simple 

b. advance 

c. complex 

d. highly complex 

Answer- highly complex

Que- The arrangement of _____ speaks of the division of labour within cell 

a. Molecule 

b. Subatomic particles 

c. Atoms 

d. Organelles 

Answer- Organelles

Que- Communities are _____ collection of organisms 

a. Static 

b. Dynamic 

c. May be static or dynamic 

d. None of these 

Answer- Dynamic

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

a. 3500000.0 

b. 3500.0 

c. 2500000.0 

d. 2.5E7 

Answer- 2500000.0

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- Who coined the term CELL? 

a. Schwann 

b. Schleiden 

c. Robert Hook 

d. Both a and b 

Answer- Robert Hook

Que- Who opposed the idea the cell is an empty space bounded by thick wall? 

a. Lorenz Oken 

b. Schwann 

c. Robert Brown 

d. Rudolph Virchow 

Answer- Robert Brown

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- Magnifying power of electron microscope as compared to eye is 

a. 500 X 

b. 250000X 

c. 500000X 

d. 250X 

Answer- 250000X

Que- In cell fractionation various components of cells including its organelles can be isolated in different layers depending upon: 

a. Their physical properties like size & weight. 

b. Physical properties of the medium like its density. 

c. Their electrical properties like their charges 

d. Both a and b 

Answer- Both a and b

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 statement about cell membrane is not true? 

a. It contains protein molecules embedded in lipid bilayer 

b. It is a differentially permeable membrane. 

c. It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles. 

d. It may get infolded to engulf solid or liquid material. 

Answer- It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles.

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

Que- The first layer of cell wall which is formed is: 

a. Primary wall 

b. Secondary wall 

c. Middle lamella 

d. All of these 

Answer- Primary wall

Que- Cellulose is the major component of 

a. Primary wall 

b. Secondary wall 

c. Middle lamella 

d. all of the above 

Answer- Primary wall

Que- Strengthening material of prokaryotic cell wall is 

a. Cellulose 

b. Chitin 

c. Inorganic salts silica waxes and ligin 

d. Peptidoglycan or Murein. 

Answer- Peptidoglycan or Murein.

Que- Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called 

a. Cytosol 

b. Cisternae 

c. Polysomes 

d. Cristae 

Answer- Cisternae

Que- Whone is not the function of endoplasmic reticulum? 

a. Nerve impulse conduction 

b. Transport of material 

c. Mechanical support 

d. Synthesis of conjugated molecules 

Answer- Synthesis of conjugated molecules

Que- Factory of ribosomal systhesis is 

a. Cytoplasm 

b. Nucleus 

c. Nucleolus 

d. Endoplasmic reticulum 

Answer- Nucleolus

Que- 60S and 40S subunit combine to form ______ particle 

a. 100 S 

b. 90 S 

c. 80 S 

d. 70 S 

Answer- 80 S

Que- A group of ribosomes attached to mRNA is known as 

a. Polymer 

b. Polypeptide 

c. Polysomes 

d. Monomer 

Answer- Polysomes

Que- Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are pinched off from ______ surface of Golgi apparatus: 

a. Forming face 

b. Maturating face 

c. Any of them 

d. None of these 

Answer- Maturating face

Que- During digesting the phagocytosed food particles vesicles formed from fusion of phagocytic vacuole with the enzymes secreted by Golgi apparantus are called 

a. Lysosomes 

b. Primary lysosomes 

c. Secondary lysosomes 

d. Food vacuole 

Answer- Secondary lysosomes

Que- Autophagosomes are 

a. Those lysosomes which eat parts of their own cells to generate energy. 

b. Those lysosomes which eat old and worn out cellular organelles. 

c. Lysosomes which help in extracellular digestion 

d. Both a and b 

Answer- Both a and b

Que- Cellular organelles related with H2O2 are 

a. Glyoxisomes 

b. Lysosomes 

c. Peroxisomes 

d. Ribosomes 

Answer- Peroxisomes

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

a. They contain enzymes which help in conversion of fatty acids into carbohydrate 

b. They are abundant in soyabeans but absent in pea. 

c. They are present through out life of a plant and provide them whth energy through Glyoxylate cycle. 

d. They are signle membranous organelles 

Answer- They are present through out life of a plant and provide them whth energy through Glyoxylate cycle.

Que- Which of the following cytoskeletal fiber contain tubulin protein? 

a. One which help in assembly of spindles during mitosis. 

b. One involved in internal cell motion. 

c. One involved in maintenance of cell shape. 

d. Both b and c 

Answer- One which help in assembly of spindles during mitosis.

Que- Centrioles are composed of ________ triplets of microtubules. 

a. 3.0 

b. 9.0 

c. 10.0 

d. 15.0 

Answer- 9.0

Que- The human naked eye can differentiate between two points which are _______ apart. 

a. 1.0 mm 

b. 0.1 mm 

c. 1.0 cm 

d. 1.0 dm 

Answer- 1.0 mm

Que- Ribonucleo-protein particles are the name of 

a. DNA 

b. Nucleus 

c. Eukaryotic ribosomes 

d. RNA 

Answer- Eukaryotic ribosomes

Que- Ribosomes + m-RNA 

a. Polysome 

b. Phlosome 

c. Polosome 

d. None of these 

Answer- Polysome

Que- In golgi apparatus the maturing face is 

a. Biconcave 

b. Convex 

c. Spherical 

d. Concave 

Answer- Concave

Que- Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by 

a. Ribosomes 

b. Cytoplasm 

c. Golgi apparatus 

d. Endoplasmic reticulum 

Answer- Golgi apparatus

Que- Amoeboid movements and movement of cyclosis is due to 

a. Microfilaments 

b. Microtubules 

c. Intermediate filaments 

d. Cytoskeleton 

Answer- Microfilaments

Que- Of the following which one is not the characteristic of mitochondria? 

a. It contains F1 particles 

b. It is involved in the synthesis of protein 

c. It is a self replicating organelle 

d. Number of mitochondria is constant 

Answer- Number of mitochondria is constant

Que- Chlorophyll is a/an _____ molecule 

a. Inorganic 

b. Cationic 

c. Anionic 

d. Organic 

Answer- Organic

Que- The part of chloroplast where CO2 is fixed to manufacture sugar is 

a. Stroma 

b. Grana 

c. Thylakoid 

d. Outer membrane 

Answer- Stroma

Que- The type of plastids which help in pollination is 

a. Chromoplasts 

b. Leucoplasts 

c. Chloroplasts 

d. All of these 

Answer- Chromoplasts

Que- Ribosomes are assembled in 

a. Nucleolus 

b. Nucleus 

c. DNA 

d. RNA 

Answer- Nucleolus

Que- The place of centromere where spindle fibres get attached is 

a. Kinetochore 

b. Kinochore 

c. Centromere region 

d. all of these 

Answer- Kinetochore

Que- Which of the following is not present in mitochondria? 

a. Enzymes 

b. Co-enzymes 

c. Ribosomes 

d. Thylakoids 

Answer- Thylakoids

Que- The stent energy in the form of ADP is regenerated by mitochondria into: 

a. AMP 

b. ADP 

c. ATP 

d. All of these 

Answer- ATP

Que- Which of the following combination is an example of self replicating organelles? 

a. Mitochondria Ribosomes 

b. Mitochondria Nucleus 

c. Mitochondria Chloroplast 

d. Mitochondria Vacuole 

Answer- Mitochondria Chloroplast

Que- Chlorophyll molecule contrains ________ as central metal ion. 

a. Fe2+ 

b. Mg2+ 

c. Zn2+ 

d. Cu2+ 

Answer- Mg2+

Que- On which of the following component of chloroplast chlorophyll is arranged? 

a. Cell membrane 

b. Matrix 

c. Thylakoids 

d. Stroma 

Answer- Thylakoids

Que- Which of the following impart a red color to Rose petals? 

a. Chloroplast 

b. Chlorophyll 

c. Chromoplast 

d. Leucoplast 

Answer- Chromoplast

Que- Number of nuclear pores/nucleus in an RBC are 

a. 1?3 

b. 3?4 

c. 10000.0 

d. 30000.0 

Answer- 3?4

Que- Period between two consecutive divisions is called 

a. Interphase 

b. Resting phase 

c. Mitotic phase 

d. Cell cycle 

Answer- Interphase

Que- DNA is synthesized and chromosome number is doubled in 

a. G1 phase 

b. S phase 

c. G2 phase 

d. G0 phase 

Answer- S phase

Que- In case of neurons, post mitotic cell escapes cell cycle and remain in _______ phase whthout proliferating further 

a. G0 phase 

b. G1 phase 

c. G2 phase 

d. S phase 

Answer- G0 phase

Que- Mitosis occurs in 

a. Diploid cells only 

b. Haploid cells only 

c. Both diploid and haploid cells 

d. Monoploid cells 

Answer- Both diploid and haploid cells

Que- Microtubules are composed of 

a. Action protein 

b. Actin and myosin proteins 

c. Sphingomyelin and tubulin 

d. Tubulin protein and traces of RNA 

Answer- Tubulin protein and traces of RNA

Que- From each pair of centrioles ________ sets of microtubules originate 

a. 2.0 

b. 3.0 

c. 4.0 

d. 5.0 

Answer- 3.0

Que- Mitotic apparatus in animals is formed by 

a. Aster and spindle 

b. Polar and kinetochore microtubules 

c. Spindle and RNA 

d. Spindle only 

Answer- Aster and spindle

Que- A special area of centromere with specific base arrangement and specific proteins where spindle fibers are attached is called 

a. Chromatin 

b. Aster 

c. Kinetochore 

d. Primary constriction 

Answer- Kinetochore

Que- Each kinetochore gets ________ fibers in mitosis 

a. 5.0 

b. 4.0 

c. 3.0 

d. 2.0 

Answer- 2.0

Que- Most critical phase of mitosis is 

a. Prophase 

b. Anaphase 

c. Metaphase 

d. Telophase 

Answer- Anaphase

Que- Reverse of prophase is 

a. Interphase 

b. Metaphase 

c. Anaphase 

d. Telophase 

Answer- Telophase

Que- In plants mitotic apparatus consists of 

a. Centriole 

b. Centriole and asters 

c. Centrioles, asters and spindles 

d. Spindles only 

Answer- Spindles only

Que- Which statement is not true about phragmoplast? 

a. Formed from vesicle originating from Golgi apparatus 

b. Present in plants only 

c. Formed at the end of anaphase 

d. Centre of dividing cell 

Answer- Formed at the end of anaphase

Que- Spread of tumor cells and establishment of secondary areas of growth is 

a. Benign tumors 

b. Cancer 

c. Metastasis 

d. Epistasis 

Answer- Metastasis

Que- Which is a feature of malignant tumor? 

a. Localized 

b. Little deleterious effects 

c. Few mitosis 

d. Metastasize 

Answer- Metastasize

Que- Feature of cancer cells in common? 

a. High nucleus to cytoplasmic ratio 

b. Prominent nucleoli 

c. Many mitosis 

d. All of these 

Answer- All of these

Que- Meiosis occur in 

a. Diploid cells only 

b. Haploid cells only 

c. Both diploid and haploid cells 

d. Monoploid cells only 

Answer- Diploid cells only

Que- Meiosis occurs at the time of 

a. Gamete formation in animals 

b. Spore formattion in plants 

c. Growth in animals 

d. Both a and b 

Answer- Both a and b

Previous Post Next Post