Explanation

Vitamin C is found in:

• Citrus fruits like oranges, lemons, and grapefruit
• Other fruits like kiwi, guava, strawberries, and cantaloupe
• Vegetables like peppers, broccoli, Brussels sprouts, and potatoes

Explanation

• Epigeal germination occurs in dicotyledonous seeds (Dicot Seed).
• Where the cotyledon emerges from the seed coat and grows above the soil surface.
• Examples of dicot seeds include beans, peas, and tomatoes.

Explanation

• Plastic is a synthetic material that is resistant to decomposition and can take hundreds or even thousands of years to break down.
• It is a non-biodegradable material.

The examples of non-biodegradable materials such as:

• Inorganic materials (glass, ceramics, heavy metals)
• Synthetic materials (styrofoam, plastic bags, other plastic things)
• Hazardous materials (detergents, toxic chemicals)
• Industrial waste (empty cans, electricity wires, fused bulbs, broken machine parts)

Explanation

• The maize seed is surrounded by a seed coat (also known as the testa) and has an opening called the micropyle.
• The micropyle is a small pore or opening in the seed coat through which water enters the seed during germination.
• It allowing the seed to absorb moisture and begin the germination process.

Explanation

- Sun is the primary source of energy for Earth.

- It emits electromagnetic radiation (sunlight) that reaches Earth and provides energy for processes like climate, weather, photosynthesis, and heating.

- Wind and water (like rivers or oceans) get their energy indirectly from the Sun because solar energy drives evaporation, temperature differences, and air movement.

- Moon reflects sunlight but provides negligible energy compared to the Sun.

Explanation

A redox reaction is best identified by the transfer of electrons between chemical species. 

Redox stands for reduction-oxidation , and it refers to a chemical reaction where one species loses electrons (oxidation) and another gains electrons (reduction). 

Proton transfer: is associated with acid-base reactions, not redox reactions. 

Absorption of light: is a phenomenon related to spectroscopy, not chemical reactions.

Exchange of ions: can occur in various types of chemical reactions, but it's not the defining characteristic of a redox reaction. 

Explanation

Hyaline cartilage is the most common type of cartilage, found in the nose and trachea.

The nose is composed primarily of hyaline cartilage, providing its structure and flexible framework.

The trachea, also known as the windpipe, is also made up largely of hyaline cartilage, allowing it to remain open for airflow. 

Explanation

 The enzyme activator secreted by the intestinal glands is Enterokinase (also known as enteropeptidase). 

Amylase:

This enzyme, which digests carbohydrates, is secreted by the salivary glands and the pancreas.

Pepsinogens:

This is an inactive precursor (zymogen) to the enzyme pepsin. It is secreted by the chief cells in the stomach's gastric glands and activated by hydrochloric acid.

Lipase:

This enzyme, which digests fats, is primarily secreted by the pancreas (pancreatic lipase), with minor amounts also secreted by the tongue (lingual lipase) and stomach (gastric lipase). 

Explanation

Reversible inhibitors differ from irreversible inhibitors because they bind temporarily and can be removed.

Irreversible inhibitors bind permanently and cannot be removed, effectively destroying the enzyme's function. 

Reversible inhibitors typically bind to an enzyme through non-covalent bonds, allowing them to dissociate and leave the enzyme functional again.

This temporary binding can slow down the enzyme's reaction rate, but doesn't permanently damage the enzyme. 

Irreversible inhibitors, on the other hand, often form covalent bonds with the enzyme, which are much stronger and cannot be broken easily. This permanent bond effectively destroys the enzyme's active site, rendering it permanently inactive. 

Explanation

• When a French bean germinates in soil, a hook-like structure emerges, which is called the hypocotyl.
• The hypocotyl is the stem of the seedling, and in French beans.
• It forms a hook-like structure that pushes the cotyledon (seed leaf) upwards.