Economic Botany Questions in English

(B) Gram (Cicer arietinum) is a pulse crop that belongs to the family Fabaceae,which was formerly known as Papilionaceae.
It is a member of the subfamily Faboideae (or Papilionoideae).
Therefore,the correct family among the given options is Papilionaceae.

(C) Economic botany is the branch of botany that deals with the study of plants that are useful to humans,specifically those that provide food,fibre,timber (wood),medicine,and other industrial products.
Ethnobotany focuses on the relationship between people and plants.
Paleobotany is the study of fossil plants.
Microbiology is the study of microscopic organisms.
Therefore,the correct option is $C$.

(D) The 'New World' refers to the Americas. Many crops were introduced to India from the Americas by European explorers and traders. Among the given options,cashew nut,potato,and rubber are well-known crops that originated in the New World and were subsequently introduced to India.

(B) Cereals are the primary source of food for humans and fodder for livestock globally.
They belong to the family $Poaceae$ (grass family).
Examples include wheat,rice,maize,and barley,which provide essential carbohydrates and energy.

(A) $Triticum \ monococcum$ is a diploid wheat species having $14 \ (2n)$ chromosomes.
It is also known as Einkorn wheat and is considered the most ancient species of wheat.

(B) The scientific name of green gram (also known as mung bean) is $Vigna$ $radiata$.
$Vigna$ $mungo$ is the scientific name for black gram (urad dal).
$Phaseolus$ $mungo$ is an older synonym often associated with black gram.
$Phaseolus$ $sinensis$ is a synonym for $Vigna$ $unguiculata$ (cowpea).

(B) $Jawar$ (Sorghum),Maize,Sugarcane,Wheat,and Rice all belong to the family $Gramineae$,which is also known as $Poaceae$.

(A) Wheat grains contain a complex mixture of proteins known as gluten,which is primarily composed of two types of proteins: glutenin and gliadin.
Glutenin is a high molecular weight protein that provides elasticity and structure to wheat dough.
Glycogen is a storage polysaccharide found in animals,not plants.
Zymase is an enzyme complex that catalyzes the fermentation of sugar into ethanol and carbon dioxide.
Albumin is a water-soluble protein,but it is not the primary storage protein in wheat grains.
Therefore,the correct answer is $A$ (Glutenin).

(B) . Vivipary is a condition where seeds germinate while still attached to the parent plant.
It is an undesirable character for annual crop plants because seeds that have already germinated cannot be stored under normal conditions for the next planting season,leading to loss of viability and difficulty in handling.

(C) Hexaploid wheat $(Triticum \text{ aestivum})$ has a total chromosome number of $2n = 6x = 42$, where $x$ is the basic chromosome number $(x = 7)$.
$1$. The monoploid number $(x)$ refers to the number of chromosomes in a single basic set, which is $7$.
$2$. The haploid number $(n)$ refers to the number of chromosomes in a gamete, which is half of the diploid number $(2n)$. Thus, $n = 42 / 2 = 21$.
Therefore, the haploid number is $21$ and the monoploid number is $7$.

(D) true nut is a dry,indehiscent fruit with a single seed and a hard,woody pericarp that does not split open at maturity.
Botanically,none of the options provided (Walnut,Cashewnut,Groundnut,Acorn) are strictly 'true nuts' in the botanical sense.
However,in many contexts,an $Acorn$ (the fruit of the oak tree) is the closest botanical example of a true nut among the choices,as it possesses the characteristic hard,woody pericarp.
Walnuts and Cashewnuts are drupes,and Groundnuts are legumes.
Therefore,$D$ is the most appropriate choice in a botanical context.

(D) $Charas$ is a potent resinous extract obtained from the hemp plant and is typically smoked. It is considered the most powerful form of the drug.
$Bhang$ is a preparation made from the leaves and flowers of the cannabis plant, commonly consumed in India with cold drinks or milk, and it also possesses narcotic effects.
$Ganja$ consists of the dried flowering tops of the female cannabis plant, which are used for smoking due to their high resin content.
All these products are derived from the hemp plant $(Cannabis \text{ } sativa)$ and have been used as narcotic stimulants for a very long time.

(A) The drug commonly known as aconite,often referred to as Metha Jahar,is obtained from the roots of $Aconitum \, napellus$.
It is used externally for the treatment of rheumatism and internally to relieve pain and fever.

(D) Colchicine is a toxic natural product and secondary metabolite, first extracted from plants of the genus $Colchicum$.
It is primarily obtained from the dried corms and seeds of $Colchicum$ $autumnale$, commonly known as autumn crocus or meadow saffron.
Since both the corms and seeds are recognized sources for the extraction of this alkaloid, the correct answer is $D$.

(A) The alkaloids emetine and cephaeline are primarily extracted from the roots of the plant $Cephaelis$ $ipecacuanha$ (commonly known as Ipecac).
These alkaloids are medically significant due to their emetic and expectorant properties.
Therefore, the correct option is $A$.

(C) The plant $Exogonium$ $purga$ (also known as $Ipomoea$ $purga$) is well-known for its roots,which contain resinous substances that act as a powerful purgative.
$Colchicum$ is primarily used for treating gout.
$Aconitum$ is known for its highly toxic alkaloids and is used in very small,controlled doses in traditional medicine,but it is not classified as a purgative.
Therefore,$Exogonium$ is the correct answer.

(B) is the correct answer. Licorice (Glycyrrhiza glabra) root contains glycyrrhizic acid. It is widely used as an expectorant to relieve throat irritation,cough,and bronchitis. Its infusion is also commonly used to soothe sore throats.

(D) The quinine tree $(Cinchona\, officinalis)$ is native to the Andes region of South America. It is well-known for its bark,which is the source of quinine,a medication used to treat malaria.

(D) $Santalum \text{ } album$, commonly known as Indian sandalwood, is a highly valued tree.
It possesses significant medicinal properties, particularly in traditional medicine systems like Ayurveda.
Its heartwood is world-renowned for its high-quality timber, which is dense, fragrant, and durable.
It is also extensively used in the cosmetic and perfume industries due to its aromatic essential oil.

(A) Atropine is an alkaloid that acts as a muscarinic antagonist.
It is extracted from the leaves and roots of the $Atropa$ $\text{belladonna}$ plant.
In ophthalmology, it is used as eye drops to dilate the pupil (mydriasis) and to paralyze the ciliary muscle (cycloplegia) during eye examinations.

(B) Hyoscyamine is a tropane alkaloid found in certain plants of the family $Solanaceae$.
It is primarily extracted from the plant $Atropa$ $belladonna$ (Deadly nightshade).
Therefore,the correct option is $B$.

(B) Cocaine is an alkaloid obtained from the leaves of the plant $Erythroxylum \text{ coca}$.
It acts as a potent central nervous system stimulant and was historically used as a local anaesthetic in medical procedures, particularly in ophthalmology and ear, nose, and throat surgeries, due to its ability to block nerve conduction.
While its use is now strictly regulated due to its addictive properties, it remains the correct answer among the given choices.

(C) Cocaine is an alkaloid obtained from the leaves of the plant $Erythroxylum$ $\text{coca}$.
It is a stimulant that interferes with the transport of the neurotransmitter dopamine.
These leaves are often chewed with lime to enhance their effect.

(A) The leaves of $Eucalyptus$ are widely used as a natural mosquito and insect repellent.
They contain essential oils,such as cineole,which possess strong aromatic properties that deter mosquitoes.
Additionally,these leaves are used as an ingredient in various germicidal and disinfecting preparations.

(C) Opium is obtained from the dried latex of the unripe seed capsules of the opium poppy plant,$Papaver$ $somniferum$.
This plant belongs to the family $Papaveraceae$.
Therefore,the correct option is $C$.

(D) $Rauwolfia$ $serpentina$ (commonly known as Sarpagandha) is a medicinal plant belonging to the family $Apocynaceae$.
The dried roots of this plant are the primary source of the alkaloid $Reserpine$.
$Reserpine$ is pharmacologically significant for its ability to lower high blood pressure (antihypertensive effect).
Additionally, it acts as a sedative, making it clinically useful in treating conditions such as nervousness, anxiety, and insomnia.
Therefore, all the mentioned conditions are treated using medicines derived from this plant.

(C) The correct answer is $C$. The drug belladonna is obtained from the leaves of the $Atropa$ $belladonna$ plant. These leaves contain several alkaloids,including atropine,which is used to dilate the pupil of the eye.

(A) The botanical name of Ashwagandha is $Withania$ $somnifera$.
It belongs to the genus $Withania$ and the family $Solanaceae$.

(A) Holy basil,scientifically known as $Ocimum$ $tenuiflorum$ (or $Ocimum$ $sanctum$),belongs to the family $Lamiaceae$.
Historically,this family was known as $Labiatae$ because of the characteristic bilabiate (two-lipped) flowers.
Therefore,the correct option is $A$.

(A) The plant $Tylophora$ $\text{asthmatica}$ is traditionally known for its medicinal properties in treating respiratory disorders.
Specifically, the chewing and swallowing of its leaves by patients suffering from asthma have shown significant therapeutic results in alleviating symptoms.

(B) is the correct answer.
$Emblica$ $officinalis$ (commonly known as Amla or Indian gooseberry) is highly valued in traditional medicine.
The dried fruit of $Emblica$ acts as an excellent astringent,stomachic,and blood purifier.

(D) $Solanum \text{ } nigrum$ (Black nightshade) is a medicinal plant known for its diverse pharmacological properties.
It acts as a cardiac tonic, alterative, diuretic, and sedative.
Additionally, the syrup prepared from the herb is commonly used as an expectorant to treat respiratory issues.
Therefore, all the given options are correct.

(B) The plant $Digitalis\, purpurea$ (foxglove) produces a cardiac glycoside known as digitoxin.
Digitoxin is extracted from the dried leaves of this plant.
It is medically significant as it is used to regulate the tone and rhythm of the heart,particularly in patients with congestive heart failure.

(A) Codeine is an alkaloid derived from the opium poppy,$Papaver \, somniferum$.
Opium contains several important alkaloids,including morphine,codeine,and neopine,which are extracted from the latex of the plant's unripe seed capsules.

(A) The jam prepared from the fruit of $Aegle$ $marmelos$ (commonly known as Bael) is traditionally used as an antipurgative or to treat digestive disorders like diarrhea and dysentery.
It acts as a mild laxative or astringent depending on the preparation,helping to regulate bowel movements.

(C) Colchicine is an alkaloid extracted from the plant $Colchicum$ $\text{autumnale}$.
It is primarily used as a medication to treat and prevent gout, which is a form of inflammatory arthritis characterized by severe joint pain and swelling.
Therefore, it is used to treat joint pain.

(B) $Belladonna$ (Atropa belladonna) is a plant known for its medicinal properties.
Its extracts,particularly from the roots and leaves,contain alkaloids like atropine,which are used in various medical applications,including as an analgesic or pain-reliever when applied externally or used in specific formulations.

(A) Brahmi $(Centella\, asiatica)$ is an important tonic for the brain.
The extract of its leaves is consumed with milk in small doses to treat mental weakness and to improve memory.

(B) The plant commonly known as stinging nettle belongs to the genus $Urtica$. Specifically,$Urtica$ $urens$ is a species of stinging nettle known for its stinging hairs that cause irritation upon contact with the skin.

(A) $Thuja$ $occidentalis$ is a well-known gymnosperm belonging to the family $Cupressaceae$.
It is widely used in traditional medicine,particularly in homeopathy,for treating various ailments such as skin conditions,warts,and respiratory issues.
$Areca$ $catechu$ (Areca nut) is an angiosperm (monocot).
$Saponaria$ is a genus of flowering plants in the family $Caryophyllaceae$,which are also angiosperms.
Therefore,$Thuja$ $occidentalis$ is the correct answer.

(A) $Salvia$ $officinalis$,commonly known as common sage,is a medicinal plant belonging to the family $Labiatae$ (also known as $Lamiaceae$).
It is traditionally used for its antiseptic and anti-inflammatory properties,including applications in respiratory conditions like $T.B.$ (Tuberculosis) in traditional medicine systems.

(B) The Sundew is a carnivorous plant belonging to the genus $Drosera$.
It is known for its medicinal properties,particularly in traditional medicine,where it is used to treat respiratory conditions like bronchitis and asthma due to its antispasmodic and antitussive effects.

(B) The correct answer is $B$.
$Berberine$ is a quaternary ammonium salt from the protoberberine group of benzylisoquinoline alkaloids found in such plants as $Berberis$ $aristata$ (also known as $Daruharidra$).
It is primarily extracted from the root bark and rhizomes of the plant.
$Berberine$ is widely used in traditional medicine for its antimicrobial and anti-inflammatory properties,particularly in the treatment of ophthalmia and various gastrointestinal disorders.

(C) Nutmeg $(Myristica \text{ } fragrans)$ is widely used as a condiment for flavoring various foodstuffs.
Additionally, nutmeg has significant medicinal properties.
The seeds are known to be carminative and stomachic, making them useful in treating conditions like flatulence, nausea, and vomiting.

(B) The condition of involuntary urination during sleep is known as nocturnal enuresis.
In traditional medicine,the leaves of the plant $Smilax$ (specifically $Smilax$ $zeylanica$ or related species) are often used in herbal preparations to treat this condition in children.
Therefore,the correct option is $B$.

(C) The plant $Venda$ $parviflora$ (also known as $Vanda$ $parviflora$) is traditionally used in ethnomedicine for treating toothaches. The roots or leaf extracts are often applied to the affected area to alleviate pain due to their medicinal properties.

(A) The oil obtained from the wood distillation of $Tectona \text{ } grandis$ (Teak) is known as Teak oil. This oil has been traditionally used in folk medicine for the treatment of various skin conditions, including eczema and ringworm, due to its antifungal and antiseptic properties.

(A) The leaves of $Gymnema \text{ } sylvestre$, commonly known as $Gurmar$ or $Meshashringi$, are widely used in traditional medicine for the treatment of diabetes.
They contain $gymnemic \text{ } acids$ which help in suppressing the taste of sugar and reducing blood glucose levels by inhibiting glucose absorption in the intestine.

(D) Diarrhoea is a condition characterized by frequent loose or watery stools.
Traditional medicine utilizes various plant parts to manage this condition.
The fruit paste of $Shorea$ $robusta$ (Sal tree) is known for its astringent properties.
The fruit pulp of $Mangifera$ $indica$ (Mango) is often used in traditional remedies to treat digestive issues.
The fruit pulp of guava ($Psidium$ $guajava$) is widely recognized for its anti-diarrhoeal properties due to its high tannin content.
Therefore,all the mentioned options are used in the treatment of diarrhoea.

(C) Coconut water,obtained from the tender fruit of $Cocos$ $nucifera$,is a refreshing and delicious drink.
It is well-known for its natural laxative properties,which help in relieving constipation.
Additionally,it acts as a mild diuretic,promoting the production of urine and helping to flush out toxins from the body.