Explanation

• Chlorophyll is a green pigment found in plants, algae, and cyanobacteria that plays a crucial role in photosynthesis.
• It traps sunlight and uses the energy to convert carbon dioxide and water into glucose and oxygen.

Explanation

• Small Vacuole because plant cells typically have a large central vacuole, not small vacuoles.

The components of a plant cell:

• Cell wall
• Cell membrane
• Cytoplasm
• Large vacuole
• Nucleus
• Chromosomes
• Chloroplast

Explanation

• Chromosomes are thread-like structures in the nucleus that carry genetic information in the form of DNA.
• They contain the instructions needed to build and maintain the cell, and control its functions.

Explanation

• Vacuoles are small, membrane-bound sacs found in the cytoplasm of cells, which contain air, liquid, or food particles.
• They play a role in storage, digestion, and maintenance of cellular homeostasis.

Explanation

• Cytoplasm is a gel-like substance inside the cell membrane that contains various organelles, salts, sugars, and other chemicals.
• It provides a medium for metabolic reactions, supports cell growth and maintenance, and helps move materials within the cell.

Explanation

• The cell membrane, also known as the plasma membrane.
• It is a thin layer of lipid and protein molecules that surrounds the cell and regulates the movement of substances in and out.
• It is partially permeable, allowing certain substances to pass through while keeping others out.

Explanation

• Iron filings are attracted to the magnetic field of a magnet.
• The magnetic field is strongest at the poles of the magnet.
• Therefore, the iron filings will be attracted more at the poles of the magnet, where the magnetic field is most intense.
• This is why you'll often see iron filings forming a pattern that traces out the magnetic field lines, with the filings clustering at the poles.

Explanation

• Electromagnets can be easily turned on and off by controlling the electric current flowing through them.
• It making them useful in applications like cranes (where they can be used to lift and release heavy loads) and doorbells (where they can be used to strike a bell or activate a buzzer).
• This switchability is a key characteristic that makes electromagnets useful in many applications.

Explanation

• Electromagnets require an electric current to generate a magnetic field.
• Whereas bar magnets are permanent magnets that do not require electricity to exhibit magnetism.
• This is the main difference between the two types of magnets.

Explanation

• When the child rubs the balloons with wool, the balloons become statically charged with the same type of charge (either positive or negative).
• When two objects with the same charge are brought near each other, they repel each other.