Plant Leaves Microscopy and Chemical Tests

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Questions and Answers

What chemical test results from Datura powder with Mayer’s reagent?

Yellow coloration (due to presence of flavonoids)
Greenish hue (due to presence of tannins)
No reaction
Creamy white ppt (due to presence of alkaloids) (correct)

Which family does Datura stramonium belong to?

Asteraceae
Rutaceae
Ericaceae
Solanaceae (correct)

What type of stomata is observed in Datura leaves' epidermis?

Diacytic stomata
Anisocytic stomata (correct)
Paracytic stomata
Cyclocytic stomata

Which plant belongs to the Rutaceae family?

Barosma betulina (A) Signup and view all the answers

What type of stomata is observed in Datura leaves' epidermis?

Anisocytic stomata (C) Signup and view all the answers

Which family does Datura stramonium belong to?

Solanaceae (D) Signup and view all the answers

What chemical test results from Datura powder with Mayer’s reagent?

Creamy white precipitate (due to presence of alkaloids) (B) Signup and view all the answers

Which plant belongs to the Ericaceae family?

Arctostaphylos uva-ursi (Uva Ursi) (D) Signup and view all the answers

Study Notes

Chemical Tests and Reagents

Datura powder reacts with Mayer’s reagent, indicating the presence of alkaloids.

Botanical Classification

Datura stramonium is part of the Solanaceae family.
The Rutaceae family includes plants like citrus species, such as lemon and orange.
The Ericaceae family is represented by plants like blueberries and rhododendrons.

Stomatal Characteristics

Datura leaves' epidermis exhibits anomocytic stomata, characterized by uniform cells surrounding the guard cells.

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Description

Test your knowledge of plant leaves by identifying microscopical characters and performing chemical tests. This quiz covers the botanical origin, microscopical characteristics, and chemical reactions of Datura and Uva Ursi leaves.