Explanation

• Reverse Osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water.
• This membrane has tiny pores that allow water molecules to pass through, but block larger particles and impurities.

Explanation

• Pulmonary veins are the only veins that transport oxygenated blood to the heart.
• Specifically from the lungs to the left atrium.

Explanation

Osmosis is the movement of water molecules through a semipermeable membrane from an area of higher water concentration to lower concentration.

It is a vital process in biological systems for maintaining cell balance.

Explanation

• Phloem is the vascular tissue.
• It responsible for transporting sugars and other organic compounds produced in the leaves (by photosynthesis) to all parts of the plant.

Explanation

• When fuel is burned, carbon dioxide gas (CO₂) is primarily produced.
• The combustion of fuel, particularly hydrocarbons, typically results in the formation of carbon dioxide and water vapor (H₂O).

Explanation

• The electrons that have been knocked out of the outermost shell of an atom are free electrons, which are able to move freely and conduct electricity.

Explanation

Explanation

The rate of flow of charge at a certain point is called the Electric Current.

- Formula: I = Q / t, where  

  - I = current (in amperes),  

  - Q = charge (in coulombs),  

  - t = time (in seconds).  

- Measured in Amperes (A).  

- Direction of current is taken as the direction of flow of positive charges (conventional current).

Explanation

- A voltmeter measures the potential difference (voltage) between two points in a circuit.  

- It is always connected in parallel to the component.  

- The SI unit of potential difference is the Volt (V).  

- Potential difference is the work done per unit charge to move a charge between two points.  

  - Formula: V = W / Q  

    - V = potential difference (volts)  

    - W = work done (joules)  

    - Q = charge (coulombs)  

- A voltmeter has high resistance so it doesn't draw current from the circuit.

Explanation

Pancreatic juice, produced by the pancreas, contains a mix of enzymes that break down:

• Proteins (pepsin, trypsin, and chymotrypsin)
• Fats (lipase)
• Carbohydrates (amylase)