Explore topic-wise MCQs in Biology.

This section includes 256 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

51.

Who invented vaccinatin?

A. Alexander fleming
B. Edward Jenner
C. Jonas Salk
D. Louis Pasteur
Answer» C. Jonas Salk
52.

People drinking water from a shallow hand pump are likely to suffer from all of following disease except

A. Cholera
B. Typhoid
C. Jaundice
D. Fluorosis
Answer» E.
53.

Which one of the following is responsible for blue body syndrone?

A. Fluoride
B. Nitrate
C. Arsenic
D. Lead
Answer» C. Arsenic
54.

Which of the following lead to malnutrition?
1. Overnutrition
2. Under nutrition
3. Imbalanced nutrition
Select the correct answer by code

A. 2 alone
B. 2 & 3
C. 1 & 3
D. 1, 2, & 3
Answer» E.
55.

Consider the following elements
1. Cobalt
2. Phosphrous
3. Zinc
Which of the above elements are required for maintaining healthy human body?

A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Answer» E.
56.

Deficiency of which one of the following causes knock-knee, bow legs and pigeon chest in children?

A. Vitamin A
B. Vitamin B
C. Vitamin D
D. Vitamin E
Answer» D. Vitamin E
57.

Which of the following are water-borne disease
1. Viral hepatitis
2. Cholera
3. Typhoid fever
4. Amoebiasis
Select the answer using code given below

A. 1 and 2 only
B. 1, 2 and 3
C. 1 and 4 only
D. 2, 3 and 4
Answer» E.
58.

Which one of the following causes the disease syphilis

A. Bacteria
B. Fungus
C. Protozoan
D. Virus
Answer» B. Fungus
59.

Where is the national institute of nutrition located?

A. Bengaluru
B. Hyderabad
C. Mysore
D. Pune
Answer» C. Mysore
60.

What is the average fat content in buffalow milk?

A. 7.2%
B. 4.5%
C. 9.0%
D. 10.0%
Answer» B. 4.5%
61.

Which one of the following is considered as the drug of last resort for human being?

A. Pencillin
B. Tetracycline
C. Chloramphenical
D. Streptomycin
Answer» D. Streptomycin
62.

The nutritional deficiency condition that need to be given top priority for remedial action is India today is

A. Scurvy
B. Rickets
C. Xerophthalmia
D. Pellagra
Answer» D. Pellagra
63.

The drug most widely tried against AID virus is

A. Zidovudin (azidothymidine)
B. Miconazole
C. Nonozynol-g
D. Virazole
Answer» B. Miconazole
64.

Which one of the following disease is caused due to presence of excess arsenic in water?

A. Alzheimer disease
B. Parkinson's disease
C. Skin Cancer
D. Indigestion
Answer» D. Indigestion
65.

Which of the following part of blood carry out the function of body defence?

A. Red blood cells
B. White blood cell
C. Platelets
D. Haemoglobins
Answer» C. Platelets
66.

The major component of honey is

A. Glucose
B. Sucrose
C. Maltose
D. Fructose
Answer» E.
67.

Pneumoconiosis affects the workers who work mainly in

A. Tanneries
B. Coal mining industry
C. Distiueries
D. Glass industry
Answer» C. Distiueries
68.

Which of the following diseases is not caused by viruses?

A. Cholera
B. Chicken pox
C. Hepatitis
D. Measles
Answer» B. Chicken pox
69.

When an ants bits, they inject

A. Glacial acetic acid
B. Methanol
C. Formic acid
D. Stearic acid
Answer» D. Stearic acid
70.

Lathyrism is caused by excessive consumption of

A. Khesari Dal
B. Mustard oil
C. Polished rice
D. Mushrooms
Answer» B. Mustard oil
71.

According to the Word Health Organization (WHO) the disease which causes the death of the largest number of people today is

A. AIDS
B. Tuberculosis
C. Malaria
D. Ebola
Answer» C. Malaria
72.

Which of the following provide instant energy

A. Lactose
B. Cellulose
C. Maltose
D. Glucose
Answer» E.
73.

Consider the following vitamins
1. Niacin
2. Pyridoxin
3. Riboflavin
4. Thiamine
Which of these are water slouble vitamin

A. 1, 2 and 3
B. 2, 3 and 4
C. 1 and 4
D. 1, 2, 3 and 4
Answer» C. 1 and 4
74.

The vector of disease sleeping sickness is

A. Sand-fly
B. House-fly
C. Fruit-fly
D. Tsetse-fly
Answer» E.
75.

Which of the following diseases are waterborne?
1. Typhoid
2. Hepatitis B
3. Tuberculosis
4. Hepatitis A
Select the correct answer using the code given below

A. 1 & 2
B. 1 & 3
C. 1 & 4
D. 1, 2, & 4
Answer» D. 1, 2, & 4
76.

Which of the following is not found in milk

A. Phosphrous
B. Protein
C. Calcium
D. Vitamin C
Answer» E.
77.

Endoscopy, a technique used to explore the stomach or other inner parts of the body, is based on the phenomenon of

A. Total internal reflection
B. Interference
C. Diffraction
D. Polarization
Answer» B. Interference
78.

Consider the following disease
1. Hepatitis-B
2. Influenza
3. Rabies
4. Scabies
Which of the caused by virus?

A. 1, 2 and 3 only
B. 2, 3 and 4 only
C. 1 and 4 only
D. 1, 2, 3 and 4 only
Answer» E.
79.

Insects that can transmit diseases to human are referred to as

A. Carriers
B. Reservoirs
C. Vectors
D. Incubators
Answer» D. Incubators
80.

Which one of the following insects spreads kala-azar?

A. Fruit fly
B. Tsetse fly
C. Sand fly
D. Mosquito
Answer» D. Mosquito
81.

Which one of the following is not an insect borne disease

A. Beriberi
B. Kala azar
C. Malaria
D. Plague
Answer» B. Kala azar
82.

Who discovered the polio vaccine?

A. Louis Pasteur
B. Konrad Zuse
C. Eli Whitnecy
D. Jonas Salk
Answer» E.
83.

The Haffkine institute, Mumbai is known for its workon the production of

A. Plague vaccine
B. Leprosy vaccine
C. Tetanus vaccine
D. Polia vaccine
Answer» B. Leprosy vaccine
84.

Which one of the following disease is caused through the wound or injury or surface of unsterilized surgical instruments?

A. Kala-azar
B. Chancroid
C. Diptheria
D. Tetanus
Answer» E.
85.

Oral Rehydration Therapy is recommended for patients suffering from

A. Tuberculosis
B. Typhoid
C. Tetanus
D. Cholera
Answer» E.
86.

Beside protein and carbohydrate other element of nutritional value found in milk, include

A. Calcium, Potassium and iron
B. Calcium & Potassium
C. Potassium & iron
D. Calcium & iron
Answer» C. Potassium & iron
87.

Which of the following elements are present in all protein
1. Carbon
2. Hydrogen
3. Oxygen
4. Nitrogen
Code:

A. 2 & 3
B. 1,2 and 4
C. 1, 3 and 4
D. 1, 2, 3 and 4
Answer» E.
88.

Consider the following statements
1. Non-functioning of lachrymal gland is an import symptom of deficiency of vitamin A
2. Deficiency of Vitamin D causes increased loss of Ca++ in urine
Which of the statement given above are correct

A. 1 and 2
B. 2,3 and 4
C. 1,3 and 4
D. 1,2,3 and 4
Answer» E.
89.

Consider the following statements
1. Brinjal is a good source of iron
2. Pumpkin is a good source of vitamin A

Which of the statement given above is /are correct?

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
90.

Which of following are associated with diabetes mellitus, a common disease in adults?
1. Higher sugar level in blood
2. Lower sugar level in blood
3. Lower insulin level in blood
4. Higher insulin level in blood
Select the correct answer by using the code given below
Code

A. 2 & 4
B. 1 & 2
C. 2 & 3
D. 1 & 3
Answer» E.
91.

Fat present below the skin surface in our body act as a barrier against

A. Loss of heart from body
B. Loss of essential body fluid
C. Loss of salt from body
D. Entry of harmful micro-organisms from the environment
Answer» B. Loss of essential body fluid
92.

Which of the following diseases are transmitted from one person to another?
1. AIDS
2. Cirrhosis
3. Hepatitis B
4. Syphilis
Select the correct answer using code given below

A. 1, 2, 3 and 4
B. 1, 3 and 4 only
C. 1 and 2 only
D. 2, 3 and 4 only
Answer» C. 1 and 2 only
93.

Living organisms require at least 27 elements of which, 15 are metals, Among these, those required in major quantities, include

A. Potassium, maganese, molybdenum and calcium
B. Potassium, molybdenum, copper and calcium
C. Potassium, sodium, magnesium and calcium
D. Sodium, magnesium, copper and magnanees
Answer» D. Sodium, magnesium, copper and magnanees
94.

Which of the following diseases of milching animals are infectious
1. Foot and mouth disease
2. Anthrax
3. Black quarter
4. Cowpox
Select the correct answer using the code given below

A. 1, 2 and 3
B. 2, 3 and 4
C. 1 and 4
D. 1,2,3 and 4
Answer» D. 1,2,3 and 4
95.

What may cause a person's ear to get hurt during take-off of landing on an aircraft?

A. Stretching of the tympanic
B. Damage to the middle ear ossicles
C. Increased impulses to the cochlea
D. Vibration in the bony labyrinths of the inner ear
Answer» B. Damage to the middle ear ossicles
96.

Which one among the following is the sweetest natural sugar?

A. Glucose
B. Fructose
C. Lactose
D. Sucrose
Answer» D. Sucrose
97.

Which one of the following causes the itch disease, scabies

A. Bacterium
B. Fungues
C. Mite
D. Protozoan
Answer» D. Protozoan
98.

Deficiency of which of the following causes xerophthelmia

A. Vitamin B
B. Vitamin B
C. Vitamin A
D. Vitamin C
Answer» D. Vitamin C
99.

The wounds of face bleed profusely because

A. Of its rich vascularity
B. It is close to heart
C. Its skin is soft
D. Due to fast contraction of facial muscle
Answer» B. It is close to heart
100.

Which one of the following antimicrobial drug is suitable for treatment of both tuberculosis and leprosy?

A. Isoniazid
B. P-aminosalicylic acid
C. Streptomycin
D. Rifampicin
Answer» E.