Explanation

• The loss of electrons and protons (H+ ions) is called oxidation.
• Oxidation is a chemical reaction that involves the loss of electrons or the addition of oxygen.
• Resulting in a change in the oxidation state of an atom, molecule, or ion.

Explanation

• Inhibitors are molecules that bind to enzymes and decrease their activity, thereby slowing down or preventing the biochemical reaction.
• Enzyme activity is not enhanced by inhibitors, but rather inhibited.

Explanation

• The correct answer is: Cell does not contain the hereditary material.

The cell theory postulates:

• All living organisms are made up of one or more cells.
• The cell is the fundamental unit of life.
• New cells are derived from pre-existing cells (biogenesis).

Explanation

Secondary consumers are animals that eat primary consumers (herbivores). They are carnivores that feed on the animals that eat plants and plant products. Examples of secondary consumers include:

• Predators like lions, dogs, wolves, and hawks
• Fish that eat smaller fish or crustaceans
• Insects like ladybugs that eat aphids

Explanation

Convex lenses are also known as converging lenses since the rays converge after falling on the convex lens.

The concave lens are known as diverging lenses, as the rays diverge after falling on the concave lens.

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RY24012023

Explanation

When light shines on a photovoltaic (PV) cell – also called a solar cell – that light may be reflected, absorbed, or pass right through the cell.

The PV cell is composed of semiconductor material; the “semi” means that it can conduct electricity better than an insulator but not as well as a good conductor like a metal.

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RY24012023

Explanation

Continetal Drift theory was proposed by Alfred wegner in 1912.

It stated that continents have changed their position and initially there was only one big continent named Pangea.

Although he was unable to explain the force behind the drifting of continents.

Explanation

A diode is a semiconductor device that allows current to flow in one direction only.

It effectively acting as a one-way valve for electrical current.

This property makes it useful in various electronic circuits for controlling the direction of current flow.

Explanation

The heartbeat refers to the rhythmic pulsation of the heart that pumps blood throughout the body.

It is a vital function that maintains blood circulation, supplying oxygen and nutrients to tissues and organs.

Explanation

Plasmolysis is the process by which a plant cell loses water and its cytoplasm shrinks, causing the cell membrane to pull away from the cell wall.

This can occur due to osmotic stress, such as when a plant is exposed to high concentrations of salt or sugar.