R4RIN – MCQs, Mock Tests | General Science Biology General science Mcq Question set 1

Which blood vessels have the smallest diameter?

1. Capillaries
2. Arterioles
3. Venules
4. Lymphatic

✅ Correct Answer: 1

Which of the following is an air-borne disease?

1. Measles
2. Typhoid
3. Pink eye
4. None of the above

✅ Correct Answer: 1

Which organ of the body produces the fluid known as bile?

1. Liver
2. Pancreas
3. Gall bladder
4. Kidney

✅ Correct Answer: 1

Which of the following hormones is a steroid?

1. Estrogen
2. Glucagon
3. Insulin
4. Oxytocin

✅ Correct Answer: 1

Which one of the following is not a function of the liver?

1. Regulation of blood sugar
2. Enzyme activation
3. Detoxification
4. Reproduction

✅ Correct Answer: 4

Greatest number of Sweat glands are present in which part of the human body?

1. Forehead
2. Forearm
3. Palm of the hand
4. Back

✅ Correct Answer: 3

Vaccination was started by......

1. Jonas E. Salk
2. Paul Muller
3. Edward Jenner
4. Robert Frost

✅ Correct Answer: 3

Proteins are made up of .......

1. Sugars
2. Amino acids
3. Fatty acids
4. Nucleic acids

✅ Correct Answer: 2

Mention the source of Liver, milk, egg yolk, fish liver oil?

1. Vitamin A
2. Vitamin B2
3. Vitamin D
4. Vitamin C

✅ Correct Answer: 3

Which of the following name of scientist and their field of work is correctly matched?

1. DNA/Double helix: F. Crick J. Watson, M. Wilkins
2. Modern classification of plants and animals based on a system: Harvey
3. Bacteria: Linnaeus
4. Blood travels in a continuous circuit: Leuwenhock

✅ Correct Answer: 1

Heart is made up of

1. Non-striated muscle
2. Cardiac muscle
3. Adipose tissue
4. Striated muscle

✅ Correct Answer: 2

Hargobind Khorana had researched on .....

1. Synthesis of simple DNA
2. Understanding the genetic code
3. Reduction of mutation
4. Synthesis of RNA from bacterial cell

✅ Correct Answer: 2

Name the corona virus that kills human?

1. AIDS
2. FAIDS
3. SARS
4. HIV

✅ Correct Answer: 3

In which part of the body digestion of protein starts?

1. Mouth
2. Stomach
3. Duodenum
4. Intestine

✅ Correct Answer: 2

Name the acid that is secreted in the stomach?

1. HCl
2. H2S04
3. H2C03
4. HNO3

✅ Correct Answer: 1

Which vitamin is needed to prevent Xero-phthalmia?

1. A
2. B
3. C
4. D

✅ Correct Answer: 1

Why the white blood corpuscles are popularly called "soldiers of the body”?

1. March at a regular pace
2. Appear uniform
3. Defend the body
4. Disciplined

✅ Correct Answer: 3

Hepatitis is a general term for a disease that is caused by:

1. Viruses
2. Bacteria
3. Parasites
4. All the above

✅ Correct Answer: 1

Which among the following is not an example of carbohydrate?

1. Maltose
2. Fructose
3. Glycogen
4. Glycine

✅ Correct Answer: 4

Which one of the following is not correctly matched?

1. Haemoglobin: Skin
2. Vitamin C: Scurvy
3. Carbohydrate: Potato
4. Fat: Butter

✅ Correct Answer: 1

Which is a communicable disease?

1. Asthma
2. Scurvy
3. Measles
4. Diabetes

✅ Correct Answer: 3

Which one of the following is not correctly matched?

1. Tuberculosis: Lungs
2. Filaria: Lymph nodes
3. Encephalitis: Heart
4. Leukaemia: Blood cells

✅ Correct Answer: 3

Which of the following has the highest protein content per gram?

1. Groundnut
2. Soyabean
3. Apple
4. Wheat

✅ Correct Answer: 2

Which of the following have Alpha-keratin as protein?

1. Blood
2. Eggs
3. Skin
4. Wool

✅ Correct Answer: 4

Mushrooms are/can be:

1. A variety of fungus
2. Fleshy, fruiting bodies of the fungus
3. Grown in small sheds or plots
4. All the above

✅ Correct Answer: 4

Which of the following is not a primary food product?

1. Vegetables
2. Milk
3. Cereals
4. Fruits

✅ Correct Answer: 2

Which of the vegetables have abundance of Vitamins A and C?

1. Brinjal
2. Lady's finger
3. Potato
4. Tomato

✅ Correct Answer: 4

Which of the following defence of the human body against bacteria?

1. Haemoglobin
2. Phagocytes
3. Red blood cells
4. Blood platelets

✅ Correct Answer: 2

Which of the following nerves connected from the eyes to ears?

1. Cerebrum
2. Cerebellum
3. Medulla
4. Spinal cord

✅ Correct Answer: 2

Leukaemia is a disease that results from some kind of disorder in the blood. Precisely, leukaemia occurs due to:

1. Haemoglobin increase in blood
2. Marked increase of white corpuscles in blood
3. Marked increase of protein and calcium
4. Marked reduction of proteins in blood

✅ Correct Answer: 2

What is blood pressure?

1. It is the pressure that the blood clot exerts over the brain.
2. It is the pressure that blood receives on account of faulty commands from the brain.
3. It is the pressure that fatness or old age exerts on the body's circulatory system.
4. It is the amount of pressure on the blood as a result of the heart's pumping function and the resistance of the arterial walls.

✅ Correct Answer: 4

Select the correct pair of disease and its causes:

1. Trichinosis - Bacterial infections
2. Sleeping sickness - Eating uncooked Pork
3. Athlete’s foot- Fungus
4. Meningitis - Protozoan (bite of tsetse fly)

✅ Correct Answer: 3

Which of the following blood vessel that carries deoxygenated blood?

1. Aorta
2. Pulmonary artery
3. Hepatic artery
4. Pulmonary vein

✅ Correct Answer: 2

Which of the following growth of human body affected by somatotrophic hormone?

1. Bones
2. Hair
3. Muscles
4. Connective tissue

✅ Correct Answer: 1

Select the correct match of the disease and its affected part.

1. Caries          - Epidermal tissue of the body
2. Ring worm    - Brain and Spinal cord
3. Meningitis     - Teeth
4. Pneumonia   - Lungs

✅ Correct Answer: 4

Hay fever is an allergic reaction to the presence of the following in the air:

1. Dust
2. Smoke
3. Pollen
4. Moisture

✅ Correct Answer: 3

The behavioural pattern of which one of the following organisms may upset when DOT is used as pesticide?

1. Earthworm
2. Snake
3. Fish
4. Frog

✅ Correct Answer: 3

What causes the mad-cow disease (Jakob-Creutzfeldt disease)?

1. Bacterium
2. Virus
3. Viroid
4. Prion

✅ Correct Answer: 4

What is another name of Vitamin K?

1. Nicotinic acid
2. Riboflavin
3. Thiamine
4. 2 Methyl-1, 4-naphthoquinone

✅ Correct Answer: 4

Which of the following hormone controlled the blood pressure?

1. Vasopressin
2. Oxytocin
3. Estrogens
4. Testosterone

✅ Correct Answer: 1

Brain and the spinal cord are invested by membranes called:

1. Arachnoids
2. Pleural membrane
3. Meninges
4. None of these

✅ Correct Answer: 3

Which one of the following organisms has a role in converting nitrates to free nitrogen?

1. Pseudomonas
2. Nitrosomonas
3. Nitrobacter
4. Rhizobium

✅ Correct Answer: 4

Select correct match of the Biological theories or laws and Scientists.

1. Laws of Inheritance   - Lamarck
2. Theories of Organic Evolution  - Darwin
3. Theories of Natural Selection   - Mendel
4. Germplasm Theory  - Weismann

✅ Correct Answer: 4

Which one of the following is the richest source of vitamin C?

1. Guava
2. Pineapple
3. Orange
4. Tomato

✅ Correct Answer: 3

Which one of the following pairs is not correctly matched?

1. Becquerel: Radioactivity
2. Alexander Fleming: Penicillin
3. Louis Pasteur: Blood groups
4. William Harvey: Blood circulation

✅ Correct Answer: 3

Which of the following is a sexually transmitted disease?

1. Leukaemia
2. Hepatitis
3. Colour Blindness
4. All of the above

✅ Correct Answer: 3

Which one of the following systems of the body is primarily attacked by the HIV?

1. Cardiovascular
2. Immune
3. Respiratory
4. Reproductive

✅ Correct Answer: 2

In the human body, the blood enters the aorta of the circulatory system from the:

1. Left atrium
2. Left ventricle
3. Right atrium
4. Right ventricle

✅ Correct Answer: 2

Which one of the following plant nutrients is not supplemented in the soil for growing legumes?

1. Nitrogen
2. Potassium
3. Phosphorus
4. None of these

✅ Correct Answer: 2

Which of the following are known as the suicide bags of cells?

1. Ribosomes
2. Golgi bodies
3. Lysosomes
4. Nucleoli

✅ Correct Answer: 3