Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

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

Garlic is used to cure

  1. Heart diseases

  2. Whooping cough

  3. Bronchitis

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

Sarpgandha is mainly used to cure

  1. Blood pressure

  2. Dysentry

  3. Fever

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

Which of the following disorders can be cured by Amla?

  1. Liver diseases

  2. Dysentry

  3. Diarrhoea

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

Which of the following disorder can be treated by bahera?

  1. Stomach disorder

  2. Asthma

  3. Skin related disorder

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

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

  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
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Linnaeus's system was artificial because it relied on a few easily observable morphological characters, such as the number of stamens, rather than evolutionary or phylogenetic relationships.

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

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

  1. diffusion

  2. pressure flow

  3. translocation

  4. active transport
Reveal answer Fill a bubble to check yourself
D Correct answer
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".

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

Which of the is the range for UV in spectroscopy?

  1. 400-700nm

  2. 500-800nm

  3. 200-300nm

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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'

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

Which of the following can be measured by UV spectroscopy?

  1. Turbidity

  2. Bacterial growth

  3. Cell count

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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.
Multiple choice botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis site of photosynthesis

The special features of spectrophotometer includes

  1. Spectral bandwidth

  2. Percentage of sample-transmission

  3. Logarithmic range of sample absorption

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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'