MPPSC Daily Practice Paper – 06 March 2023

• During the process of photosynthesis, a total of 18 molecules of ATP are used to synthesize one molecule of glucose.
• This occurs during the light-independent reactions of photosynthesis, also known as the Calvin cycle or dark reactions.
• The ATP is generated during the light-dependent reactions, where it is produced through the process of photophosphorylation.

• Poet and writer Rabindranath Tagore was the first non-European and Indian to get a Nobel Prize in 1913 in literature.
• Har Gobind Khorana shared his 1968 Nobel Prize in physiology or medicine. He was honoured “for their interpretation of the genetic code and its function in protein synthesis”.
• Amartya Sen was the winner of the 1998 Sveriges Riksbank Prize in Economic Sciences. He was rewarded “for his contributions to welfare economics”.
• India’s first Nobel Prize in the field of chemistry was won by Venkatraman Ramakrishnan. He received the 2009 Nobel Prize “for studies of the structure and function of the ribosome”.

German silver is a copper alloy that typically contains nickel and zinc, with the exact proportions varying depending on the specific application or intended use of the alloy.

Here are some typical ranges of composition for German silver:

• Copper: 50-70%
• Nickel: 10-30%
• Zinc: 10-30%

The reason why German silver is sometimes called “silver” is because it has a similar appearance to silver due to its high luster and white/silver color.

• Macronutrient – nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), carbon (C), oxygen (O), hydrogen (H).
• Micronutrients (or trace minerals) – iron (Fe), boron (B), chlorine (Cl), manganese (Mn), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni).
• Nitrogen (N) is a key component of amino acids, which are the building blocks of proteins. It is essential for plant growth and plays a vital role in the formation of chlorophyll, which is necessary for photosynthesis.
• Phosphorus (P) is a component of DNA and is involved in energy transfer in plants. It is necessary for root development, seed production, and overall plant growth.
• Potassium (K) is essential for plant metabolism and regulates the opening and closing of stomata, which are tiny pores on plant leaves that allow for gas exchange. It is also involved in the transport of nutrients and water within the plant.