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2025 16 questions

Q822025 · 14 Sept 2025
Which one of the following is NOT a heterogeneous mixture ?
1. A.Sulphur in carbon disulphide
2. B.Mixture of sugar 8 and salt crystals
3. C.Sandy water
4. D.Sulphur in water
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Answer: A
Q922025 · 14 Sept 2025
The optimum pH at which the enzymes pepsin and trypsin of the human alimentary canal works are
1. A.pH 2.0 and 7.9, respectively
2. B.pH 4.5 and 3.5, respectively
3. C.pH 9.5 and 4.5, respectively
4. D.pH 7.0 and 8.0, respectively
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Answer: A
Q942025 · 14 Sept 2025
Which one among the following statements about arteries and veins in humans is NOT correct ?
1. A.Arteries carry blood away from heart while veins bring blood towards the heart
2. B.Pulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated blood
3. C.Arteries have thicker and more elastic walls compared to veins in general
4. D.Arteries do not have valves but veins do have valves
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Answer: B
Q952025 · 14 Sept 2025
Identify the functions that are controlled by the hind brain of human being
1. A.Involuntary actions such as blood pressure, salivation vomiting ete.
2. B.Controlling the regions receiving sensory impulses from receptors
3. C.Controlling the movement of voluntary muscles
4. D.Sensation of hunger or being full
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Answer: A
Q972025 · 14 Sept 2025
The menstrual cycle in females is controlled by hormones that are secreted by
1. A.Ovary and lacrimal gland
2. B.Ovary and sebaceous gland
3. C.Ovary and pituitary gland
4. D.Prostate and pituitary gland
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Answer: C
Q982025 · 14 Sept 2025
Which one of the following blood cells type secrete large number of antibodies during am immune response of the body?
1. A.Neutrophils
2. B.Eosinophils
3. C.Lymphocytes
4. D.Monocytes
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Answer: C
Q992025 · 14 Sept 2025
Which of the following organelles have their own DNA and ribosomes ?
1. A.Endoplasmic reticulum and Golgi bodies
2. B.Mitochondria and Chloroplast
3. C.Endoplasmic reticulum and cytoskeleton
4. D.Cell wall and nucleolus
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Answer: B
Q512025 · 13 Apr 2025
Which one of the following statements is NOT correct ?
1. A.The molecules of soap are sodium or potassium salts of long chain fatty acids
2. B.The molecules of soap contain both hydrophobic and hydrophilic ends
3. C.Detergents are more effective than soaps in hard water
4. D.In micelles the ionic-end of the molecules is towards oil droplet while the other end faces outside
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Answer: D
Q582025 · 13 Apr 2025
Which one of the following statements is NOT correct?
1. A.A scale measuring hydrogen ion concentration in a solution is called pH scale
2. B.The higher the hydrogen ion concentration in a solution, higher is its pH
3. C.We can measure pH generally from 0 to 14 on a pH scale
4. D.The 'p' in pH stands for 'potenz' in German meaning power
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Answer: B
Q662025 · 13 Apr 2025
Which of the following statements with reference to L-Wave or Long Wave generated by an earthquake is/are correct? 1.They follow the Earth's circumference 2.They travel more or less at a constant rate Select the answer using the code given below:
1. A.1 only
2. B.2 only
3. C.Both 1 and 2
4. D.Neither 1 nor 2
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Answer: A
Q682025 · 13 Apr 2025
The lactic acid that gets accumulated in the muscle cells during rigorous exercise causing muscle cramps is produced from
1. A.ATP
2. B.Pyruvate
3. C.Ethanol
4. D.Glucose
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Answer: B
Q722025 · 13 Apr 2025
Which is the correct base pairing found in a normal DNA molecule?
1. A.Adenine pairs with Thymine
2. B.Adenine pairs with Guanine
3. C.Adenine pairs with Cytosine
4. D.Thymine pairs with Guanine
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Answer: A
Q732025 · 13 Apr 2025
Clotting of blood involves which one among the following clotting proteins?
1. A.Pathogen
2. B.Fibrinogen
3. C.Macrophage
4. D.Phagocytes
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Answer: B
Q752025 · 13 Apr 2025
The vector of malaria parasites is
1. A.Male Anopheles mosquito
2. B.Male Culex mosquito
3. C.Female Anopheles mosquito
4. D.Female Culex mosquito
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Answer: C
Q762025 · 13 Apr 2025
Which of the following pairs is/are correctly matched? 1.Malaria : Mycobacterium 2.TB : Plasmodium Select the answer using the code given below:
1. A.1 only
2. B.2 only
3. C.Both 1 and 2
4. D.Neither 1 nor 2
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Answer: D
Q772025 · 13 Apr 2025
Vitamin B1 is also known as
1. A.Riboflavin
2. B.Thiamin
3. C.Retinol
4. D.Tocopherol
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Answer: B