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Pharmacognosy and Phytochemistry Quiz

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Questions and Answers

Why do plants synthesize phytochemicals?

To protect themselves against insect attacks and plant diseases (correct)

To attract insects for pollination

To provide a food source for animals

To increase the water content in their cells

What is phytochemistry?

The study of chemicals derived from fungi

The study of chemicals derived from minerals

The study of chemicals derived from plants (correct)

The study of chemicals derived from animals

In which major classes are the compounds found in plants?

Alkaloids, glycosides, proteins, and lipids

Alkaloids, vitamins, polyphenols, and enzymes

Alkaloids, carbohydrates, terpenes, and nucleic acids

Alkaloids, glycosides, polyphenols, terpenes, and carbohydrates (correct)

What is the main purpose of phytochemistry in food plants?

To have health benefits for humans Signup and view all the answers

What will students acquire knowledge about through phytochemistry studies?

The chemistry of plant constituents and methods of screening for active constituents Signup and view all the answers

In what field can phytochemistry be considered a sub-field?

Botany Signup and view all the answers

What is the modern definition of carbohydrates?

Compounds that contain carbon, hydrogen, and oxygen in the same proportions as in water Signup and view all the answers

Which of the following is NOT a carbohydrate according to the text?

Rhamnose (C6H12O4) Signup and view all the answers

Which compounds are considered as condensation polymers in the text?

Monosaccharides and their derivatives Signup and view all the answers

What is the significance of carbohydrates according to the text?

They form the structural material of cell walls in plants Signup and view all the answers

Which category do sugars like maltose, lactose, and gentiobiose fall into according to the text?

Oligosaccharides Signup and view all the answers

What chemical properties do certain compounds have according to the text?

They exhibit the chemical properties of carbohydrates Signup and view all the answers

What is the gross formula for carbohydrates mentioned in the text?

$C_x(H_2O)_y$ Signup and view all the answers