Tuberculosis is predominantly caused by ________.
- Entamoeba histolytica
- Salmonella typhi
- Mycobacterium bovis
- bacillus cereus
The Correct Option is C
Solution and Explanation
Step 1: Understand the causative agent of tuberculosis. Tuberculosis is primarily a bacterial infection caused by members of the genus Mycobacterium. While the most common causative agent is Mycobacterium tuberculosis, Mycobacterium bovis also causes tuberculosis, particularly in animals and sometimes in humans.
Step 2: Analyze the options. Entamoeba histolytica: Causes amoebiasis, not tuberculosis. Salmonella typhi: Causes typhoid fever, not tuberculosis. Mycobacterium bovis: Causes tuberculosis and is a known causative agent. Bacillus cereus: Causes food poisoning, not tuberculosis.
Top Questions on Pathogens
- Which of the following is used to evaluate disinfectant?
Match the following:
(P) Tuberculosis (1) Bacterial
(Q) Diphtheria (2) Viral
(R) Yellow fever (3) Toxoids
(S) Malaria (4) Protozoal- Match List-I with List-II:
List-I (Diseases) List-II (Pathogen) (A) Pneumonia (I) Wuchereria bancrofti (B) Typhoid (II) Microsporum (C) Ringworm (III) Salmonella (D) Elephantiasis (IV) Haemophilus influenzae - CUET (UG) - 2024
- Biology
- Pathogens
- Which of the following pairs is correct?
- State the objective of adopting artificial hybridisation programme in plants.
Questions Asked in GATE ES exam
- Water from a hand pump located near a landfill has 1 mg/L arsenic (oral carcinogenic potency factor = 1.75 (kg-day)/mg). A person who lives nearby drinks 2 L/day of water from this hand pump for 10 years. Assume a body weight of 70 kg and an average life duration of 70 years. The chances of this person getting an excess risk of cancer is ________ × 10-3 (rounded off to three decimal places).
- GATE ES - 2025
- Hydrology
- An industry releases three greenhouse gases (GHGs), CO2 (5 kg/day), CH4 (0.5 kg/day), and N2O (0.1 kg/day). The industry flares the CH4 before it is released to the atmosphere. The Global Warming Potential (GWP) are as follows: CO2 = 1, CH4 = 21, N2O = 310. The annual GWP of GHGs released from the industry is ________ kg CO2 equivalent (rounded off to the nearest integer).
- GATE ES - 2025
- Greenhouse Effect
- A solid waste of composition \( C_{60}H_{135}O_{50}N_5 \) is to be composted aerobically in a closed vessel mechanical composting facility. Given: all ammonia generated escapes the facility; air contains 23% of Oxygen by weight; 100% excess air requirement for the closed vessel composting facility. The atomic weights: C – 12, H – 1, O – 16, N – 14. The actual air required for composting is:
- GATE ES - 2025
- Waste Management
Length of the streets, in km, are shown on the network. The minimum distance travelled by the sweeping machine for completing the job of sweeping all the streets is ________ km. (rounded off to nearest integer)
- GATE ES - 2025
- Hydrology
- An incandescent light bulb operated for two hours per day uses 12.2 kWh of energy per month. Burning of one kg of coal generates 2 kWh of electrical energy and releases 7 g of PM10. The reduction in PM10 emitted per month, if this incandescent bulb is replaced with a light emitting diode (LED) bulb which consumes 1/6th of energy, is ________ g (rounded off to one decimal place).
- GATE ES - 2025
- Hydrology