Tag: biology

Questions Related to biology

Opium or morphine is obtained from the latex of unripe fruit of

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Papaver somniferum

  2. Coffea arabica

  3. Thea sinensis

  4. Oryza sativa

Show answer
Correct Option: A
Explanation:

Poppy is a flowering plant belongs to the family Papaveraceae. Opium and morphine are obtained from the latex of unripe fruit of Papaver somniferum.

Coffer arabica is a type of coffee that is produced from Coffee Arabica plant. Thea Sinensis is a tea plant that belongs to Theaceae family. Oryza sativa is rice that belongs to the grass family.
Hence option A is correct.

Strychnine which is of medicinal importance is essentially ____________.

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. An antibiotic

  2. Antimalarial drug

  3. An alkaloid from Strychnos nuxvomica

  4. Antihypertensive drug

Show answer
Correct Option: C
Explanation:

 The dried ripe seeds are the source of a drug nux vomica (Strychnos) which is used as a tonic, stimulant and in the treatment of paralysis and nervous disorders.

So, the correct answer is 'An alkaloid from Strychnos nux vomica'

Which one of the following is the botanical name of oil palm?

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Elaeis guineensis

  2. Olea europeaea

  3. Cocas nucifera

  4. Carthmus tintorius

Show answer
Correct Option: A

Narcotic and soothing properties of tobacco is due to or Harmful alkaloid contained in the leaves of tobacco is ___________.

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Caffeine

  2. Aconite

  3. Nicotine

  4. Codeine

Show answer
Correct Option: C
Explanation:

 Nicotine is a harmful alkaloid of tobacco and the pharmacological activity of tobacco is almost entirely  due to its content nicotine which is consumed in various forms, is absorbed through the lining of the lungs,gut etc it acts upon the nervous system, may cause paralysis, cyanosis etc. It is an irritant and therefore may lead to oral and lung cancer.

So, the correct answer is 'Nicotine'

Antimalarial drug quinine is obtained from

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Bark of Cinchona

  2. Root of Cycas

  3. Stem of Mango

  4. None of the above

Show answer
Correct Option: A
Explanation:

Quinine is the drug obtained from the bark of Cinchona tree primarily used for the treatment of malaria that is a disease caused by parasite protozoan Plasmodium.

So the correct option is 'Bark of Cinchona'

Plants like Aegle marmelos, Ocimum sanctum and Ficus religiosa are designated as

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Sacred plants

  2. Traditional food crops

  3. Lesser known food plants

  4. Medicinal plant species

Show answer
Correct Option: A
Explanation:

Some plants are used for sacred and ceremonial purposes and are known as sacred plants. For example, Prosopis cineraria' known as Jammi, Shami, Khejri Tree, or Ghaf, is a species of flowering tree belonging to the pea family, Fabaceae is a sacred plant. The importance lies during the tenth day of the Dasara Festival when it is worshipped in various parts of India. Other examples include Aegle marmelos, Ocimum sanctum, and Ficus religiosa.

So, the correct answer is 'Sacred plants'.

Of the following plants, which one would you consider an endangered plant due to overexploitation?

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Dioscorea

  2. Maize

  3. Wheat

  4. Rice

Show answer
Correct Option: A
Explanation:

Dioscorea is considered an endangered plant due to overexploitation.  This is a medicinal plant from the Himalayan region and it produces bulbil and rhizome and it is rich in streodial compound . 

Maize, Wheat, and rice are not used for medicinal purposes.
Hence, Option A is correct.

Which one of the following pairs is NOT correctly matched?

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Neem - Azadirachtin

  2. PEG- Protoplast fusion

  3. Gybogenesis- Haploids

  4. Wheat- $2$-celled pollen

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Correct Option: A

Allelopathic effect of excretion of one plant species on another associated plant species is related to.

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Healing of wounds

  2. Inhibition of growth

  3. Promotion of closer association

  4. Prevention of attack by pathogenic microbes

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Correct Option: A

Many herbs of medicinal value can be obtained on a commercial scale by __________________.

biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

  1. Developing a quick rooting and multiplying medium for vegetative buds

  2. Long-term hybridization process for increasing fertility of seeds

  3. Physiological research for finding the cause of non-viability of seeds

  4. Using the hormone dipping system for cutting

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Correct Option: A