Explanation

The large intestine (colon) is responsible for absorbing:

• Water
• Mineral salts (electrolytes)
• Some vitamins (like vitamin K and biotin)

Explanation

• The small intestine, also known as the small bowel, is the primary site of nutrient absorption in the human body.
• The walls of the small intestine are lined with finger-like projections called villi, which increase the surface area for absorption.
• Nutrients like carbohydrates, proteins, fats, vitamins, and minerals are absorbed into the bloodstream through the small intestine.

Explanation

• The oesophagus (also known as the esophagus) is a muscular tube that acts as a pathway to transport food from the pharynx (throat) to the stomach.
• It uses peristalsis (wave-like muscle contractions) to move the food bolus into the stomach.

Explanation

• When food is mixed with saliva and chewed, it is broken down into a soft, flexible, semi-solid mass called a bolus.
• This bolus is then swallowed, and it passes through the esophagus into the stomach.

Explanation

• In the mouth, saliva contains the enzyme amylase.
• It starts the chemical digestion of carbohydrates (such as starches and sugars).
• By breaking them down into simpler sugars like maltose and dextrin.

Explanation

Explanation

The charges of Proton, Electron, Neutron respectively are:

• Proton: Positive charge (+1)
• Electron: Negative charge (-1)
• Neutron: Neutral charge (0)

Explanation

The stomach is a J shaped sac about one foot in length that lies under the diaphragm on the left of the abdominal cavity.

The stomach has three parts:

1. The region where the stomach opens is known as the cardiac stomach.
2. The main body is known as fundus.
3. The posterior portion which opens to the intestine is known as the pyloric stomach.

Explanation

Hepatitis is a disease of the liver, not the respiratory system.

Top Common diseases of the respiratory system include:

1. Asthma
2. Chronic obstructive pulmonary disease (COPD)
3. Pneumonia
4. Influenza (flu)
5. Tuberculosis (TB)
6. Bronchitis
7. Emphysema
8. Lung cancer
9. Cystic fibrosis
10. Pulmonary fibrosis

Explanation

A fasting blood sugar level of 99 mg/dL or lower is normal, 100 to 125 mg/dL indicates you have prediabetes, and 126 mg/dL or higher indicates you have diabetes