Tag: plants: structure and function

Questions Related to plants: structure and function

Triphala is mainly composed of

botany reproductive morphology significance of fruits fruit plants: structure and function

  1. Harad

  2. Bahera

  3. Amala

  4. All of the above

Show answer
Correct Option: D
Explanation:

Triphala is a traditional Ayurvedic formulation of three medicinal fruits amla, harad and bahera. It is also known as 'Triphala churna'. It is most commonly used to help in digestion, and support regular bowel movements. In addition to the gastric disorders, Triphala is also used in respiratory, urinary, reproductive and nervous system disorders. 

So, the correct option is 'All of the above'.

Starch grain in latex are

botany reproductive morphology significance of fruits fruit plants: structure and function

  1. Elongated

  2. Oval

  3. Dumbell shaped

  4. None of the above

Show answer
Correct Option: C
Explanation:

Starch is an insoluble polysaccharide which is formed by the condensation of glucose. Starch is present in many plants in storage tissue. They are found in various shapes and may be used for identification of plants. 
Starch is present in latex in dumbell or rod shaped. 
Thus, the correct answer is option C.

Garlic is used to cure

botany reproductive morphology significance of fruits fruit plants: structure and function

  1. Heart diseases

  2. Whooping cough

  3. Bronchitis

  4. All of the above

Show answer
Correct Option: D
Explanation:

Garlic is a perennial plant and belongs to Amaryllidaceae family. It has many medicinal properties, such as:

  • Boosts the immune system.
  • Prevents common cold and other respiratory troubles such as bronchitis, whooping cough.
  • Reduces blood pressure.
  • Improves cholesterol levels, thus lowering the risk of heart disorders.
  • It contains antioxidants, therefore reduces oxidative stress and also reduces the risk of brain diseases like Alzheimer's disease and dementia.
  • So, the correct answer is 'All of the above'.

Sarpgandha is mainly used to cure

botany reproductive morphology significance of fruits fruit plants: structure and function

  1. Blood pressure

  2. Dysentry

  3. Fever

  4. All of the above

Show answer
Correct Option: D
Explanation:

Sarpgandha is a flower species from the family Apocynaceae. The flowers are mostly white or violet in colour. It is known for its medicinal properties such as treatment of the following disease:

  • snake and spider bites
  • controls dysentry
  • helpful in insomnia
  • helps in reducing high blood pressure
  • Able to maintain mensuration,
  • Help cure to fever and mental disorders.

So the correct option is 'All of the above'.

Which of the following disorders can be cured by Amla?

botany reproductive morphology significance of fruits fruit plants: structure and function

  1. Liver diseases

  2. Dysentry

  3. Diarrhoea

  4. All of the above

Show answer
Correct Option: D
Explanation:

Amla is a super-fruit, as it is rich in vitamin A, B and C, calcium, chromium manganese, phosphorous and iron. It also has antioxidant properties. 

It is also called "healing fruit", as it has numerous benefits. Some of its benefits include:

  • Cures constipation and regulates bowel movements.
  • It provides good treatment for diarrhoea and dysentery.
  • It also helps in maintaining a healthy liver.
  • It also protects against the formation of free radicals, therefore its regular intake can prevent cancer.

So, the correct option is 'All of the above'.

Which of the following disorder can be treated by bahera?

botany reproductive morphology significance of fruits fruit plants: structure and function

  1. Stomach disorder

  2. Asthma

  3. Skin related disorder

  4. Both A and B

Show answer
Correct Option: D
Explanation:

Bahera is a large deciduous tree. It has many medicinal properties. Its dried fruits are used in stomach disorders, sore throat, asthma, inflammation and in diseases related to eyes, nose, bladder and heart. Its seeds are useful in corneal ulcers. It is also very useful is leprosy and fever. The seed oil gives excellent results in skin diseases and premature greying of hair.

So the correct option is 'Both A and B'.

Dormant seeds are

biology plant growth seed dormancy fruit plants: structure and function

  1. Succulent

  2. Dry

  3. Wet

  4. Soft

Show answer
Correct Option: B
Explanation:

The non-germinating seeds are called as dormant seeds and contain hard coat which is impermeable to water, gases so restrict water uptake and oxygen exchange.

So the correct option is 'Dry.'

The cause of dormancy for sometime in fertilized ovule is 

biology plant growth seed dormancy fruit plants: structure and function

  1. Presence of Auxin hormone

  2. Zygote divides only after certain amount of endosperm is formed

  3. Presence of growth inhibitor ABA

  4. Presence of least amount of water

Show answer
Correct Option: B
Explanation:

The fertilized ovule is got dormant so that the adequate amount of endosperm is formed as for division and for further survival, it is very necessary that ample amount of food is present in the seed.

So the correct option is 'Zygote divides only after a certain amount of endosperm is formed'.

Which of the following breaks the dormancy of potato tubes?

biology plant growth seed dormancy fruit plants: structure and function

  1. IAA

  2. ABA

  3. Zeatin

  4. Gibberellin

Show answer
Correct Option: D
Explanation:

Dormancy of seeds could be broken by the activation of digestive enzymes like alpha amylases. It is being done by phytohormones like gibberellic acid. It also helps in cell elongation, division of lateral meristem and many more.

Seed dormancy is due to the : -

biology plant growth seed dormancy fruit plants: structure and function

  1. Ethylene

  2. Abscissic acid

  3. IAA

  4. Starch

Show answer
Correct Option: B
Explanation:
Seed dormancy is defined as a state in which seeds are prevented from germinating even under environmental conditions normally favorable for germination. The sesquiterpene abscisic acid (ABA) regulates many processes during the plant life cycle, including key events during seed formation, such as the deposition of storage reserves, prevention of precocious germination, the acquisition of desiccation tolerance, and the induction of primary dormancy.

So, the correct answer is 'Abscissic acid'.