Which organ is responsible for filtering blood and producing urine?
a) Liver
b) Kidney
c) Stomach
d) Spleen
b) Kidney
Which macronutrient is responsible for muscle repair and growth?
a) Carbohydrates
b) Proteins
c) Fats
d) Vitamins
b) Proteins
Which mineral is crucial for maintaining healthy bones and teeth?
a) Sodium
b) Potassium
c) Calcium
d) Magnesium
c) Calcium
Where does the digestion of carbohydrates begin?
a) Stomach
b) Mouth
c) Small intestine
d) Esophagus
b) Mouth
Who is known for developing the theory of general relativity?
a) Isaac Newton
b) Albert Einstein
c) Galileo Galilei
d) Niels Bohr
b) Albert Einstein
Which organ is known as the largest in the human body?
a) Liver
b) Skin
c) Heart
d) Lungs
b) Skin
Which macronutrient is the body's primary source of energy?
a) Fats
b) Proteins
c) Carbohydrates
d) Fiber
c) Carbohydrates
Which mineral is important for oxygen transport in the blood?
a) Zinc
b) Iron
c) Magnesium
d) Phosphorus
b) Iron
Where does most of the nutrient absorption occur in the digestive system?
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagus
b) Small intestine
Who is credited with inventing the telephone?
a) Alexander Graham Bell
b) Thomas Edison
c) Nikola Tesla
d) Samuel Morse
a) Alexander Graham Bell
Which organ produces insulin?
a) Liver
b) Stomach
c) Pancreas
d) Gallbladder
c) Pancreas
Which macronutrient provides the most calories per gram?
a) Proteins
b) Fats
c) Carbohydrates
d) Vitamins
b) Fats
Which vitamin is essential for vision and skin health?
a) Vitamin D
b) Vitamin K
c) Vitamin A
d) Vitamin C
c) Vitamin A
What is the main function of the large intestine?
a) Absorbing nutrients
b) Absorbing water
c) Producing bile
d) Breaking down proteins
b) Absorbing water
Who invented the World Wide Web?
a) Steve Jobs
b) Bill Gates
c) Tim Berners-Lee
d) Larry Page
c) Tim Berners-Lee
Which organ plays a crucial role in the immune response by producing lymphocytes?
a) Spleen
b) Kidney
c) Stomach
d) Gallbladder
a) Spleen
Which type of fat is considered healthy and found in olive oil and avocados?
a) Trans fats
b) Saturated fats
c) Unsaturated fats
d) Omega-6 fats
c) Unsaturated fats
Which vitamin is produced by the body when exposed to sunlight?
a) Vitamin A
b) Vitamin D
c) Vitamin C
d) Vitamin K
b) Vitamin D
Which substance is produced by the stomach to help digest food?
a) Amylase
b) Hydrochloric acid
c) Bile
d) Pepsin
b) Hydrochloric acid
Who is known for inventing the printing press?
a) Johannes Kepler
b) Johannes Gutenberg
c) Leonardo da Vinci
d) Galileo Galilei
b) Johannes Gutenberg
Which part of the brain controls balance and coordination?
a) Cerebellum
b) Cerebrum
c) Medulla
d) Thalamus
a) Cerebellum
What is the storage form of carbohydrates in the body?
a) Glucose
b) Glycogen
c) Starch
d) Cellulose
b) Glycogen
Which mineral is an important component of thyroid hormones?
a) Iodine
b) Iron
c) Zinc
d) Calcium
a) Iodine
Which section of the small intestine is primarily involved in the absorption of fats and vitamins?
a) Duodenum
b) Jejunum
c) Ileum
d) Colon
c) Ileum
Who discovered penicillin?
a) Louis Pasteur
b) Alexander Fleming
c) Robert Koch
d) Jonas Salk
b) Alexander Fleming