Tag: botany

Questions Related to botany

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'.

Choose the correct answers from the alternatives given.
The system of plant classification proposed by Carolus Linnaeus was artificial because:

botany why classification? classification hierarchy hierarchy of classification different types of classifications modern classification system

  1. he was not a naturalist

  2. his classification was based on similarities and differences in floral and other morphological characters only

  3. his classification was based on evolutionary relationships

  4. he took into account the physiological relationships along with morphological observations

Show answer
Correct Option: B

The earliest undoubled vascular plants are found in the rocks of ______________.

botany plant physiology mechanism of absorption mineral absorption significance of transpiration transport of food, water and minerals mineral transport

  1. Early Cambrian

  2. Early Devonian

  3. Mid-creataceous

  4. Not until the beginning of Quaternary

Show answer
Correct Option: A

Choose the correct answer from the alternatives given.
Minerals enter a plant mainly by:

botany plant physiology mechanism of absorption mineral absorption significance of transpiration transport of food, water and minerals mineral transport

  1. diffusion

  2. pressure flow

  3. translocation

  4. active transport

Show answer
Correct Option: D
Explanation:

Active transport is a process that is required to move molecules against a concentration gradient. For plants to take up mineral ions, ions are moved into root hairs, where they are in a higher concentration than in the dilute solutions in the soil. So, the correct answer is "Active Transport".

Which of the is the range for UV in spectroscopy?

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis site of photosynthesis

  1. 400-700nm

  2. 500-800nm

  3. 200-300nm

  4. All of the above

Show answer
Correct Option: A
Explanation:

UV spectroscopy (400-700nm) is a type of absorption spectroscopy in which light of ultra-violet region is absorbed by the molecule resulting in the excitation of the electrons from the ground state to higher energy state. It obeys the Beer-Lambert law that states that when a beam of monochromatic light passes through a solution of an absorbing substance, the rate of decrease of intensity of radiation with the thickness of the absorbing solution is directly proportional to the incident radiation as well as the concentration of the solution.

So, the correct answer is '400-700nm'

Which of the following can be measured by UV spectroscopy?

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis site of photosynthesis

  1. Turbidity

  2. Bacterial growth

  3. Cell count

  4. All of the above

Show answer
Correct Option: D
Explanation:
UV spectroscopy (400-700nm) is a type of absorption spectroscopy in which light of ultra-violet region is absorbed by the molecule resulting in the excitation of the electrons from the ground state to higher energy state. It obeys the Beer-Lambert law that states that when a beam of monochromatic light passes through a solution of an absorbing substance, the rate of decrease of intensity of radiation with the thickness of the absorbing solution is directly proportional to the incident radiation as well as the concentration of the solution. Hence it is used to determine turbidity, bacterial growth and cell count. Thus, the correct answer is option D.

The special features of spectrophotometer includes

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis site of photosynthesis

  1. Spectral bandwidth

  2. Percentage of sample-transmission

  3. Logarithmic range of sample absorption

  4. All of the above

Show answer
Correct Option: D
Explanation:

In a spectrophotometer, the spectrometer produces the desired range of wavelength of light from a wide range of wavelengths. Transmittance (T) is the percentage of sample transmission and is defined as the fraction of light that passes through the sample. It is related to absorption by the expression 

Absorbance(A)= --logT=--logIt/Io, where It is the amount of light transmitted and Io is the amount of light incident on the cuvette solution. 
So, the correct answer is 'All of the above'