Tag: plant kingdom and the environment around us

Questions Related to plant kingdom and the environment around us

Quinine are obtained from the members of.

  1. Leguminosae

  2. Asteraceae

  3. Rubiaceae

  4. Poaceae


Correct Option: C
Explanation:
Some members of Rubiaceae family, like the Cinchona species produce Quinine. It is used in the preparation of medicines.
So, the correct answer is 'Rubiaceae'

Which of these is not a correct match?

  1. Resin- Pine stem

  2. Gum- Babul tree

  3. Caffeine- Cinchona

  4. Morphine- Poppy


Correct Option: C
Explanation:
A. Pine tree secretes resins due to cuts in the tree trunk or from broken limbs which help to seal the damaged part.
B. Babool tree which is also known as gum arabic tree is known for its gum which is prepared from the hardened sap of the tree.
C. Cinchona bark contains quinine.
D. Morphine is a drug extracted from the poppy seeds.
So, the correct answer is 'Caffeine -Cinchona'.

There are genetic variation shown by medicinal plant Rauwolfia vomitoria. This plant is grown in which one of the following regions?

  1. Deccan peninsula

  2. Gangetic plains

  3. Himalayan ranges

  4. North east


Correct Option: C
Explanation:
  • Rauvolfia vomitoria is a medicinal shrub which is also known as the devil's poison pepper and are found in the Himalayan ranges.

  • It is mainly used to treat convulsions, fever, weakness, insomnia, mental disorders, arthritis, cancer, diabetes and for issues related to stomach, intestines and liver.

  • The extracts from the plant are also applied to the skin for snake bites, skin infections and swelling.

  • These plants show genetic variation as it is very important for the survival of the species adaptability and to cope with drastic environmental changes and to develop disease resistance.

  • So, the correct answer is 'Himalayan ranges'.

Flowers of Safflower yield

  1. Bluish dye

  2. Reddish dye

  3. Yellowish dye

  4. Both B and C


Correct Option: B
Explanation:

The flowers of safflower (Carthamus tinctorius) are occasionally used in cooking as a cheaper substitute for saffron. It is sometimes referred to as bastard saffron. The dried safflower petals are also used as a herbal tea variety. Dried safflowers are also used as a natural dye source for orange-red pigment carthamin (natural red pigment). It is also known as Carthamus red or natural red. So, the correct answer is 'Reddish dye'.

Drug santonin (anthelmintic) comes from

  1. Centipeda

  2. Artemesia

  3. Tagetes

  4. Chrysanthemum


Correct Option: B
Explanation:

Santonin was a drug which was widely used in the past as an antihelmintic, a drug which expels parasitic worms by paralyzing them and allowing them to be passed outside the body. Santonin was developed by German chemists by extracting the chemical from Artemisia cina. Previously Artemisia was used as an antihelmintic remedy. So, the correct answer is 'Artemesia'.

Belladona is obtained from ___________.

  1. Atropa

  2. Hyoscyamus

  3. Calendula

  4. Aconitum


Correct Option: A

Which one is called a century plant?

  1. Dracaena

  2. Xanthorrhoea

  3. Agave

  4. Aloe


Correct Option: C
Explanation:

Agave Americana, commonly known as sentry plant, century plant or American Aloe is the species of flowering plants belonging to family Asparagaceae. It is native to Mexico, the United States in New Mexico, Arizona and Texas. Agave americana is cultivated as an ornamental plant for drought tolerant and desert style cactus gardens. So, the correct answer is 'Agave'.

Meadow saffron is

  1. Gloriosa superba

  2. Smilax zeylanica

  3. Colchicum luteum

  4. Urginea maritima


Correct Option: C
Explanation:

Colchicum luteum, commonly known as meadow saffron, autumn crocus is a species of flowering plant belonging to family Colchicaceae. The species is cultivated as an ornamental in temperate areas, in spite of its toxicity. It is a perennial herb native to Great Britain and Ireland. It contains colchicine which is used as a drug and it is also used in plant breeding. So, the correct answer is 'Colchicum luteum'.

Pick out the lectin from those given below

  1. Gum

  2. Diterpene

  3. Curcumin

  4. Morphine

  5. Concanavalin A


Correct Option: E
Explanation:

Concanavalin A (ConA) is a type of lectin extracted from the bean Canavalia ensiformis.  So the correct option is D.

Colchicine is obtained from

  1. Bulb of Autumn Crocus

  2. Corm of Autumn Crocus

  3. Rhizome of Autumn Crocus

  4. Leaves of Autumn Crocus


Correct Option: B
Explanation:

Colchicum autumnale, commonly known as Autumn crocus, meadow saffron is toxic autumn-blooming flowering plant belonging to family Colchicaceae. It is a perennial herb and native to Great Britain and Ireland. The bulb-like corms of Colchicum autumnale contain colchicine, a useful drug and it is also used in plant breeding. So, the correct answer is 'Corm of Autumn Crocus'.