Explanation

• Ribosomes are the sites of protein synthesis in the cell.
• They read genetic instructions (mRNA) and assemble amino acids into proteins.
• They can be found free in the cytoplasm or attached to rough ER.
• They are made of RNA and proteins.
• They are present in both prokaryotic and eukaryotic cells.

Last verified on 06-05-2026

Explanation

• Proteins are called body-building foods.
• They help in growth, repair of tissues, and muscle development.
• They are essential for maintaining and rebuilding body cells.
• They are made of amino acids, the building blocks of the body.
• Deficiency of protein can lead to weak muscles and poor growth.

Last verified on 06-05-2026

Explanation

• The nucleus is the control center of the cell.
• It regulates all vital activities like growth, reproduction, and metabolism.
• It contains genetic material (DNA).
• Ribosomes make proteins, and cytoplasm supports cell structure.

Last verified on 04-05-2026

Explanation

• Vitamin A deficiency → Night blindness (Nyctalopia)
• Vitamin A is important for vision and immune function.

Additional information:

• Vitamin K is essential for blood clotting.
• Vitamin D helps in calcium absorption and bone mineralization.
• Vitamin B1 supports nerve function and energy metabolism.

Last verified on 01-02-2026

Explanation

• A wind speed of 10–14 km/h (approximately 6–9 mph or 5–8 knots)
• Classified as a Gentle Breeze (Force 3) to a light breeze (Force 2)

Last updated question by NS on 2 MAY 2026