MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 2851. |
Which of the following is a function of cuboidal epithelium :- |
| A. | Participate in secretion and excretion |
| B. | Helps to remove mucus from trachea |
| C. | To move mucus in a specific direction |
| D. | Protect inner tissue cells |
| Answer» B. Helps to remove mucus from trachea | |
| 2852. |
Which of the following structure is seen in the joints between skull bones :- |
| A. | Yellow elastic tissue |
| B. | Cellular Cartilage |
| C. | White Fibrous tissue |
| D. | Tendon |
| Answer» C. White Fibrous tissue | |
| 2853. |
Name the connective tissue present in larynx |
| A. | White fibrous cartilage |
| B. | Hyaline cartilage |
| C. | Areolar tissue |
| D. | Yellow elastic cartilage |
| Answer» C. Areolar tissue | |
| 2854. |
What is Synthesized by fibroblast |
| A. | Collagen |
| B. | Elastin |
| C. | (A) and (B) |
| D. | (A) or (B) |
| Answer» D. (A) or (B) | |
| 2855. |
Who synthesized elastin protein |
| A. | Fibroblast |
| B. | Adipose cell |
| C. | Phagocytic cell |
| D. | Mast cells |
| Answer» B. Adipose cell | |
| 2856. |
Which of the following structure is not covered by epithelial tissue :- |
| A. | Blood vessel |
| B. | Digestive gland |
| C. | Skin |
| D. | Cartilage |
| Answer» D. Cartilage | |
| 2857. |
Name of a structure formed of collagen protien :- |
| A. | Yellow elastic |
| B. | White fibres |
| C. | Yellow fibre |
| D. | White fibrous |
| Answer» C. Yellow fibre | |
| 2858. |
It connects the bones joints and holds them in position :- |
| A. | Tendon |
| B. | While elastic cartilage |
| C. | Ligament |
| D. | (B) and (C) both |
| Answer» D. (B) and (C) both | |
| 2859. |
What is improper for ringworm disease. |
| A. | It is done by Trichophyton fungi. |
| B. | By constant itching the lesions get expanded |
| C. | It is done by using infected persons comb. |
| D. | It is done by secretion of serotonin chemical. |
| Answer» E. | |
| 2860. |
Which of the following is arranged in a single layer :- |
| A. | Stratified epithelium |
| B. | Pseudo-stratified epithelium |
| C. | Ciliated epithelium |
| D. | Transitional epithelium |
| Answer» B. Pseudo-stratified epithelium | |
| 2861. |
The spherical from of metacryptomezoites is called _____ |
| A. | Sporozoite |
| B. | Cryptoschizont |
| C. | Trophozoite |
| D. | Gamato cyte |
| Answer» D. Gamato cyte | |
| 2862. |
At Which time interferon is secreted ? |
| A. | When antibody reacts with antigen in our body. |
| B. | When serotonin become active |
| C. | When lymphocytes become active |
| D. | When our body cell's are infected by virus then that cell's secret this chemical. |
| Answer» E. | |
| 2863. |
What is responsible for malaria...? |
| A. | All Anopheles mosquitoes. |
| B. | All Culex mosquitoes. |
| C. | Only male Anopheles mosquitoes |
| D. | Only female Anopheles mosquitoes |
| Answer» E. | |
| 2864. |
Duration of fever occured by plasmodium malarie is _______ |
| A. | Every 24 hours. |
| B. | Every 48 hours. |
| C. | Every 36 hours. |
| D. | Every 72 hours. |
| Answer» E. | |
| 2865. |
Give the location of Ig-G ? |
| A. | Nucleu |
| B. | Cytoplasm |
| C. | Blood |
| D. | Mitochondria |
| Answer» D. Mitochondria | |
| 2866. |
Which compound used in refrigerator is a source of chlorine |
| A. | Freon |
| B. | HFC |
| C. | BHC |
| D. | None |
| Answer» B. HFC | |
| 2867. |
Earlier which animals were used to test the safety of Polio Vaccine |
| A. | Transgenic rat |
| B. | Transgenic pigs |
| C. | Transgenic mice |
| D. | Transgenic sheep |
| Answer» D. Transgenic sheep | |
| 2868. |
Which is the drastic change seen in Delhi public transport after 2002? |
| A. | All the buses run by CNG |
| B. | Use of unleaded petrol |
| C. | Use of LPG in buses |
| D. | All the buses run by methanol |
| Answer» B. Use of unleaded petrol | |
| 2869. |
What is biological magnification of DDT in large size fish eating birds? |
| A. | 25ppb |
| B. | 25ppm |
| C. | 2.5ppm |
| D. | 0.25ppm |
| Answer» C. 2.5ppm | |
| 2870. |
Give the name of scientist who are concern with interferon word. |
| A. | Watson & Crick |
| B. | Khorana |
| C. | Luis pasteur & Stemberg |
| D. | Ellic isaks & jan lindenmen |
| Answer» E. | |
| 2871. |
By which method large number of particles of pollutants are separated? |
| A. | Cyclone collector |
| B. | Porous filter |
| C. | Electrostatic precipitator |
| D. | By using solvent |
| Answer» D. By using solvent | |
| 2872. |
What happens to the O2 level and BOD of river water at sewage discharge point? |
| A. | Sharp decline in O2 level and rise in BOD |
| B. | O2 level and BOD both increases |
| C. | No change in BOD but O2 level increases |
| D. | No change in O2 level but BOD increases |
| Answer» B. O2 level and BOD both increases | |
| 2873. |
Which is world’s most problematic aquatic weed? |
| A. | Chara |
| B. | Wulffia |
| C. | Hydrilla |
| D. | Eichhornia |
| Answer» E. | |
| 2874. |
What is the effect of catalytic converter on carbon monoxide and nitrogen oxide of exhaust? |
| A. | Converts them into CO2 andH2O |
| B. | Converts them into CO2 andNitrogen gas |
| C. | Converts them into CO2 andNH4 |
| D. | It converts them into CO2 andNO2 |
| Answer» C. Converts them into CO2 andNH4 | |
| 2875. |
Which chemical of petrol inactivates the catalysts of filter for reducing emission of poisonous gases? |
| A. | Lead |
| B. | Rhodium |
| C. | Straunsium |
| D. | Iron |
| Answer» B. Rhodium | |
| 2876. |
Which catalyst converts unburnt hydrocarbons into CO2 andH2O? |
| A. | Platinum-Palladium |
| B. | Platinum-Chloride |
| C. | Palladium- Chloride |
| D. | Lead |
| Answer» B. Platinum-Chloride | |
| 2877. |
Sound waves of_____ decibels causes damage to eardrum or permanently impair hearing? |
| A. | 150db or more |
| B. | 120db or more |
| C. | More than 80db |
| D. | 110db |
| Answer» B. 120db or more | |
| 2878. |
Which is correct according to EURO II norms? |
| A. | Sulphur can be controlled at 350ppm in diesel and 150ppm in petrol |
| B. | Sulphur can be controlled at 150ppm in petrol |
| C. | Lead can be controlled at 350ppm in diesel |
| D. | Lead can be controlled at 150ppm in petrol |
| Answer» B. Sulphur can be controlled at 150ppm in petrol | |
| 2879. |
For reducing vehicular pollution which measures are taken by Delhi government? |
| A. | Phasing out old vehicles |
| B. | Use of unleaded and low sulphur petrol and diesel |
| C. | Use of catalytic converter in vehicles |
| D. | All of these |
| Answer» E. | |
| 2880. |
To safeguard our water resource the amendment was passed in the year. |
| A. | 1974 |
| B. | 1981 |
| C. | 1986 |
| D. | 1987 |
| Answer» B. 1981 | |
| 2881. |
What is the reason for mortality of fish in water body? |
| A. | Biodegradation of organic matter by microbes |
| B. | Due to algal bloom |
| C. | Due to decrease in BOD |
| D. | a and b both |
| Answer» B. Due to algal bloom | |
| 2882. |
Which harmless gases are produced by smokes stakes of thermal power plant and smelters? |
| A. | N2, O2 |
| B. | CO2 |
| C. | CO, N2 |
| D. | SO2 |
| Answer» B. CO2 | |
| 2883. |
Which colloidal material is seen in domestic sewage? |
| A. | Sand and silt |
| B. | Fecal material and bacteria |
| C. | Sodium and calcium |
| D. | Phosphorus |
| Answer» C. Sodium and calcium | |
| 2884. |
In which year noise was also included as an air pollutant? |
| A. | 1981 |
| B. | 1987 |
| C. | 1986 |
| D. | 1984 |
| Answer» C. 1986 | |
| 2885. |
Name the metropolitan city leading the country in its levels of air pollution. |
| A. | Ankleshwar |
| B. | Delhi |
| C. | Chennai |
| D. | Bangalore |
| Answer» C. Chennai | |
| 2886. |
Which plant is known as ‘Terror of Bengal’? |
| A. | Chara |
| B. | Wulffia |
| C. | Hydrilla |
| D. | Eichhornia |
| Answer» E. | |
| 2887. |
According to 1990s survey which city ranked 4th among the 41 most polluted cities of the world? |
| A. | Ankleshwar |
| B. | Delhi |
| C. | Japan |
| D. | China |
| Answer» C. Japan | |
| 2888. |
In which cities Bharat stage II is applied from 1st april’2005? |
| A. | Delhi, Mumbai, Chennai, Baroda, Surat |
| B. | Delhi, Mumbai, Kanpur, Baroda, Surat |
| C. | Delhi, Mumbai, Chennai, Baroda, Pune |
| D. | Mumbai,Pune,Bangalore,Surat,Ahmedabad |
| Answer» E. | |
| 2889. |
Which metal is the main air pollutant in metro cities? |
| A. | Lead |
| B. | Copper |
| C. | Magnesium |
| D. | Iron |
| Answer» B. Copper | |
| 2890. |
Particulate matter of which size causes greatest harm to human health? |
| A. | 2.5 micrometer or less in diameter |
| B. | More than 2.5 micrometer |
| C. | More than 3.5 micrometer |
| D. | Less than 3.5 micrometer |
| Answer» B. More than 2.5 micrometer | |
| 2891. |
A substantial fall in the level of which gases have been found between1997 to2005 in Delhi? |
| A. | CO2,SO2 |
| B. | CO2,CO,SO2 |
| C. | CO2,SO2 ,NO2 |
| D. | CO2,CO,CFC |
| Answer» B. CO2,CO,SO2 | |
| 2892. |
which type of organisms , fungi & Bacteria of forest ecosystem generally called ? |
| A. | Prodlucer |
| B. | Decomposers |
| C. | Primary consumer |
| D. | Secondary consumers |
| Answer» C. Primary consumer | |
| 2893. |
Which type of pollution causes altered breathing pattern, increased heartbeats and sleeplessness? |
| A. | Noise pollution |
| B. | soil pollution |
| C. | Radioactive pollution |
| D. | Thermal pollution |
| Answer» B. soil pollution | |
| 2894. |
Which of the following is not responsible for pollution? |
| A. | Wood |
| B. | SO2 |
| C. | Unsaturated carbon |
| D. | Solar energy |
| Answer» E. | |
| 2895. |
In an ecosystem, when organisms can be included in more than one trophic lager ? |
| A. | Phytoplankton |
| B. | Fish |
| C. | Zooplanktm |
| D. | Frog |
| Answer» C. Zooplanktm | |
| 2896. |
To protect and improve the quality of our environment which act was passed and in Which year? |
| A. | The environment act 1986 |
| B. | The environment act 1988 |
| C. | The Air (Prevention and control of pollution) act 1981 |
| D. | The Water (Prevention and control of pollution) act 1974 |
| Answer» B. The environment act 1988 | |
| 2897. |
It is key- compound for all living organism ? |
| A. | Sulphar |
| B. | Phosphures |
| C. | Nitrogen |
| D. | Calcium |
| Answer» C. Nitrogen | |
| 2898. |
Which catalyst should be fitted into filters in order to reduce emission of poisonous Gases? |
| A. | Selenium |
| B. | Rhodium |
| C. | Magnesium |
| D. | Manganese |
| Answer» C. Magnesium | |
| 2899. |
The Scrubber is used to remove gases like… |
| A. | SO2 |
| B. | NO2 |
| C. | CO2 |
| D. | SO3 |
| Answer» B. NO2 | |
| 2900. |
In an Electrostatic precipitators the velocity of air blown between the plates must be. |
| A. | Low |
| B. | High |
| C. | Moderate |
| D. | Very high |
| Answer» B. High | |