Science

Question 1

What is the largest organ in the human body?

Answer 1

Skin

It protects regulates temperature and allows sensory perception

Question 2

Which part of the cell contains DNA?

Answer 2

Nucleus

Question 3

What gas do plants produce during photosynthesis?

Answer 3

O2

Question 4

How many bones are in the adult human body?

Answer 4

206

Question 5

What is the hardest natural substance on earth?

Answer 5

Diamond

Question 6

What is the main function of red blood cells?

Answer 6

To carry oxygen from the lungs to the body

Question 7

What is the largest planet in the solar system?

Answer 7

Jupiter

Question 8

What is the powerhouse of the cell?

Answer 8

The mitochondria it produces energy (ATP)

Question 9

Which element is most abundant in the earths crust?

Answer 9

Oxygen followed by silicon

Question 10

What is the smallest unit of life?

Answer 10

The cell

Question 11

Which part of the brain controls balance and coordination?

Answer 11

The cerebellum

Question 12

What is the order of the planets in our solar system from the Sun outward?

Answer 12

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune

My very educated Mother just served us nachos

Question 13

Which planet spins the fastest?

Answer 13

Jupiter, it rotates once every 10 hours

Question 14

What is the smallest bone in the human body?

Answer 14

The Stapes (in the middle ear)

Question 15

What is the only metal that is liquid at room temperature?

Answer 15

Mercury

Question 16

What is the most common gas in earths atmosphere?

Answer 16

Nitrogen 78%

Oxygen 21%

Question 17

Which organ in the human body can regenerate tissue the fastest?

Answer 17

Liver

Question 18

What is the rarest blood type in humans?

Answer 18

AB negative

Question 19

What is the most abundant element in the universe?

Answer 19

Hydrogen

Question 20

Which animal can survive without its head for weeks?

Answer 20

A cockroach

Question 21

What is the hottest planet in our solar system?

Answer 21

Venus even hotter than mercury due to its runaway greenhouse effect

Question 22

What is the largest internal organ in the human body?

Answer 22

The liver

It detoxifies chemicals produces bile and stores nutrients

Question 23

How many times does the human heartbeat in an average lifetime?

Answer 23

About 2.5 billion times

Question 24

What is the only part of the human body that cannot repair itself?

Answer 24

Tooth enamel

Question 25

Which organ regulates blood sugar levels?

Answer 25

The pancreas Produces insulin and glucagon

Question 26

Which organ filters waste from the blood and produces urine?

Answer 26

The kidneys

Question 27

Which part of the body contains the most bacteria?

Answer 27

The gut, especially the large intestine hosting trillions of microbes

Question 28

How much of the human body is water?

Answer 28

About 60% on average with variations by age and sex

Question 29

What is the fastest growing tissue in the human body?

Answer 29

Hair and nails

Question 30

Which blood cells help by infections?

Answer 30

White blood cells leukocytes They identify and attack bacteria, viruses and other pathogens

Question 31

Which part of the body has the thinnest skin?

Answer 31

Eyelids

Question 32

How long can a human brain survive without oxygen?

Answer 32

About 3 - 6 minutes before permanent damage occurs

Question 33

Which organ stores the bodies blood supply in case of emergency?

Answer 33

The Spleen Which can release extra blood during heavy bleeding or exercise

Question 34

Which part of the human body is most sensitive to pain?

Answer 34

The fingertips and lips due to dense nerve endings

Question 35

Which human sense diminishes fastest with age?

Answer 35

Hearing, especially the ability to hear high frequency sounds

Question 36

Where does fat go when you lose it?

Answer 36

Passes as water through your urine, sweat or other fluids & you breath it out as carbon dioxide

Question 37

When you feel dizzy, why does sitting down help?

Answer 37

It stabilises your balance Keeps blood flow steady to the brain Prevents falls Less muscle fatigue

Question 38

What is a lumbar puncture?

Answer 38

A lumbar puncture is a procedure where a needle is inserted into the lower spine to collect cerebrospinal fluid (CSF), the fluid surrounding the brain and spinal cord. It is done to diagnose conditions like infections, bleeding, or neurological disorders, and sometimes to treat problems by relieving pressure or delivering medication directly into the CSF.

Question 39

What is sepsis?

Answer 39

Sepsis is a serious and potentially life-threatening condition that happens when the body’s response to an infection becomes extreme and starts damaging its own tissues and organs. What happens in sepsis Normally, your immune system fights infections caused by bacteria, viruses, or fungi. In sepsis, the immune response goes out of control, causing widespread inflammation throughout the body. This can lead to: • Tissue damage • Organ failure (such as kidneys, lungs, or heart) • Dangerous drops in blood pressure If it gets worse, it can lead to Septic shock, where blood pressure falls so low that organs cannot get enough oxygen. Common causes Sepsis usually starts from an infection such as: • Lung infections like Pneumonia • Urinary tract infections like Urinary tract infection • Abdominal infections • Skin infections • Blood infections Symptoms to watch for Symptoms can appear quickly and may include: • Fever or very low body temperature • Fast heart rate • Rapid breathing • Confusion or difficulty staying awake • Extreme pain or discomfort • Clammy or sweaty skin • Low blood pressure

Question 40

Paracetamol

Answer 40

1. Paracetamol (Acetaminophen) • Reduces pain and fever. • Safe for most people when used as directed.

Question 41

Ibuprofen

Answer 41

2. Ibuprofen • Non‑steroidal anti‑inflammatory drug (NSAID). • Reduces pain, fever, and inflammation.

Question 42

Aspirin

Answer 42

3. Aspirin • Pain relief, anti-inflammatory, and blood thinner for heart attack/stroke prevention. • Not recommended for children due to risk of Reye’s syndrome.

Question 43

Antibiotics

Answer 43

💉 Antibiotics (fight bacterial infections) 1. Amoxicillin • Used for ear infections, strep throat, urinary tract infections. 2. Azithromycin • Common for respiratory infections. 3. Ciprofloxacin • Broad-spectrum, often used for more serious infections. ⚠️ Important: Antibiotics do not work against viruses, so they’re only for bacterial infections.

Question 44

Diabetes

Answer 44

🩹 Diabetes Management 1. Metformin • Most common first-line medicine for type 2 diabetes. 2. Insulin • Essential for type 1 diabetes and some type 2 cases.