Explanation

Explanation

Insulin is a hormone secreted by the beta cells of the pancreas.

It helps regulate blood glucose levels by promoting glucose uptake into cells.

Explanation

Gastrin is a digestive hormone secreted by G-cells in the pyloric region of the stomach.

It stimulates the secretion of gastric acid (HCl), aiding in the digestion of food.

Explanation

Starch is a type of polysaccharide, which falls under the category of carbohydrates.

It is a complex carbohydrate made up of many glucose units and serves as an energy storage molecule in plants.

Explanation

Sodium (Na) and Chlorine (Cl) together make up about 0.45% of the human body mass.

They are essential electrolytes that help regulate fluid balance, nerve function, and muscle activity.

Explanation

Nitrogen makes up about 3% of the human body by mass.

It is mostly found in proteins, DNA, and RNA.

It is essential for building amino acids and nucleic acids in the body.

Explanation

Protozoa are often studied under parasitology because many are parasites causing diseases like malaria and amoebiasis.

Though protozoa are microorganisms, their parasitic nature makes them a key focus in parasitology.

Explanation

In electrical-mechanical analogies, mass (which resists acceleration) corresponds to inductance, which resists changes in current.

Just as mass stores mechanical energy, inductance stores magnetic energy.

Explanation

In the resistor color code, orange represents the digit 3.

This value is used in the first two bands (significant figures) or as the multiplier depending on the band position.

Explanation

The power (P) is given by:

P = VI

Given P = 100 W and V = 200 V, we can find the current (I):

100 = 200 × I

I = 100 / 200

= 0.5 A