User Contributed Quizzes

वसा शरीर के लिए ऊर्जा का दूसरा प्रमुख स्रोत है और यह शरीर में ऊर्जा को संग्रहित करने का कार्य भी �

• Total Question: 10

कार्बोहाइड्रेट हमारे शरीर को ऊर्जा प्रदान करने वाला मुख्य पोषक तत्व है। यह कार्बन, हाइड्रोजन औ

• Total Question: 10

खनिज तत्व शरीर के लिए अत्यंत आवश्यक सूक्ष्म पोषक तत्व हैं जो शरीर की संरचना और कार्य में महत्वप�

• Total Question: 10

Vitamins are essential organic compounds required by the body in small quantities for normal growth, metabolism, and overall health. Unlike carbohydrates, proteins, or fats, vitamins do not provide energy but help the body use these nutrients effecti

• Total Question: 10

Enzymes are biological catalysts made of proteins that speed up chemical reactions in living organisms without being consumed. Each enzyme acts on a specific substrate and converts it into a product. Enzymes lower the activation energy required for r

• Total Question: 10

Proteins are large, complex molecules made up of amino acids. They are essential for the structure, function, and regulation of the body's tissues and organs. Enzymes, hormones, and antibodies are all proteins. The building blocks of proteins ar

• Total Question: 10

The human reproductive system is responsible for producing, storing, and transporting reproductive cells that allow humans to reproduce. It consists of male and female reproductive organs. The male reproductive system includes the testes, vas def

• Total Question: 10

Reproduction in plants is the biological process by which new plants are produced. It ensures the survival and continuity of plant species. There are two main types of reproduction in plants: 1. Asexual reproduction — involves only one paren

• Total Question: 10

The human nervous system is the body’s control and communication network. It coordinates all voluntary and involuntary actions by transmitting signals between different body parts. The nervous system is divided into two main parts: 1. Centra

• Total Question: 10

The human circulatory system, also known as the cardiovascular system, is responsible for transporting blood, nutrients, gases, and waste products throughout the body. It consists of the heart, blood, and blood vessels. The heart acts as a pump that

• Total Question: 10

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy. It takes place mainly in the chloroplasts of plant cells, where chlorophyll absorbs sunlight. The process uses carbon dioxide and

• Total Question: 10

Respiration is the biological process through which living organisms release energy from the food they consume. This energy is essential for growth, repair, and carrying out all life activities. Respiration occurs in every cell and can be of two type

• Total Question: 10

The human digestive system is responsible for breaking down the food we eat into nutrients that the body can absorb and use for energy, growth, and repair. The process begins in the mouth, where food is chewed and mixed with saliva. It then passes th

• Total Question: 10

Genetics is the branch of biology that studies heredity and variation in living organisms. It explains how traits such as eye color, hair texture, and height are passed from parents to offspring through genes. Genes are specific segments of DNA that

• Total Question: 10

Cell Biology is the branch of biology that studies the structure, function, and behavior of cells — the basic units of life. Every living organism, from the smallest bacterium to the largest animal, is made up of cells. Cells can exist as indep

• Total Question: 10

The tiger is the largest member of the cat family and one of the most powerful predators on Earth. Known for its beautiful orange coat with black stripes, the tiger is a symbol of strength and bravery. Tigers are carnivores that primarily hunt deer,

• Total Question: 10

Elephants are the largest land animals on Earth, known for their intelligence, memory, and strong social bonds. They have long trunks used for breathing, drinking, and grabbing objects. Their large ears help regulate body temperature, and their tusks

• Total Question: 10

Deer are graceful, herbivorous mammals known for their beauty and agility. They are found in forests, grasslands, and even mountainous regions around the world. Male deer grow antlers every year, which they shed and regrow. These antlers are often us

• Total Question: 10

Titanium is a strong, lustrous, silver-gray metal with the atomic number 22. It is classified as a transition metal and is known for its high strength-to-weight ratio and corrosion resistance. Titanium was discovered in 1791 by William Gregor, a Brit

• Total Question: 10

Scandium is a soft, silvery-white metal with the atomic number 21. It is the first element in the transition metals group of the periodic table. Scandium was discovered in 1879 by Lars Fredrik Nilson, a Swedish chemist. It is found in small amounts i

• Total Question: 10