Tag: botany

Questions Related to botany

Electromagnetic radiation with wavelengths between 0.4 and 0.7 micrometers is called:

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

  1. Ultraviolet light

  2. Visible light

  3. Infrared light

  4. Microwaves

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Correct Option: B

If the oxygen of $CO _2$ is radiolabelled and provided to the plant, then which of the following will show radioactivity in the cells exposed to sunlight?

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

  1. Hexose

  2. $H _2O$

  3. $O _2$

  4. GTP

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Correct Option: A

EMR' stands for

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

  1. Electronic Radiations

  2. Electron Radiation

  3. Electromagnetic Radiations

  4. Electron Rays

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Correct Option: C

How does solar radiations travel through space?

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

  1. Electromagnetic Waves

  2. Light Waves

  3. Air Waves

  4. All of above

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Correct Option: A

Chlorosis, i.e., loss of chlorophyll leading to yellowing in leaves, is caused by the deficiency of 

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. N, K, Mg

  2. S, Fe, Zn

  3. Mn, Mo, Mg

  4. All of these

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Correct Option: D

While in N, K and Mg deficiency, chlorosis appears first in _____ leaves; in S and Ca deficiency,_____ leaves are the first to be affected.

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Young, old

  2. Old, young

  3. Old, old

  4. Young, young

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Correct Option: B

Deficiency symptoms of radially mobilised essential elements will first appear in _________

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Younger tissues

  2. Older tissues

  3. Roots

  4. Shoots

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Correct Option: B

Yellowish edges appear in leaves deficient in

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Potassium

  2. Calcium

  3. Magnesium

  4. Phosphorus

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Correct Option: A

Necrosis mainly occurs by the deficiency of  

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Ca, Mg

  2. N, S

  3. Mn, Mo

  4. Fe, Mn

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Correct Option: A

Premature leaf fall is due to deficiency of 

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Sodium

  2. Potassium

  3. Zinc

  4. Phosphorus

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Correct Option: D