551. Amino acids are required for the synthesis of:

1. Alkaloids
2. Lipids
3. Proteins
4. Carbohydrates

Option “3” is correct
Amino acids are required for the synthesis of body protein and other important nitrogen-containing compounds. Amino acids are constituents of protein and act as precursors for many co-enzymes, hormones, nucleic acid, etc.
552. Transpiration increases in:

1. Hot, dry and windy condition
2. Hot, damp and windy condition
3. Cool, damp and windy condition
4. Cool, dry and still condition

Option “1” is correct
Conditions which increase the rate of evaporation also increase the rate of transpiration. Transpiration is more rapid in hot, dry and windy conditions than it is in still or humid conditions.
553. What is the Kyoto Protocol?

1. It is an agreement among countries to take steps for reducing acid rain
2. It is an agreement among countries to take steps for planting trees to control pollution
3. It is an agreement among countries to start using nuclear energy
4. It is an agreement among countries to take steps for reducing green house gases emission.

Option “4” is correct
The Kyoto Protocol is an international treaty, which extends the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits State Parties to reduce greenhouse gases emissions.
554. The longest bone in the human body is –

1. Ulna
2. Humerus
3. Femur
4. Tibia

Option “3” is correct
The longest bone in the human body is femur.
555. Alveoli are related to which of the following system of human body?

1. Circulatory system
2. Excretory system
3. Reproductive system
4. Respiratory system

Option “4” is correct
The alveoli are located in the respiratory zone of the lungs, representing the smallest units in the respiratory tract. Thus, Alveoli are related to Respiratory system.
556. Which of the following bacteria is responsible for the formation of curd?

1. Lycopodium
2. Yeast
3. Lacto-bacillus
4. Fungus

Option “3” is correct
Lacto-bacillus bacteria are responsible for the formation of curd.
557. How many pairs of ribs are there in human body?

1. 13
2. 11
3. 12
4. 14

Option “3” is correct
Ribs are the long curved bones which form the rib cage. They serve to protect the lungs, heart, and other internal organs. In humans there are normally 12 pairs of ribs.
558. Annona squamosa is the scientific name of –

1. Custard Apple
2. Papaya
3. Babul
4. Drumstick

Option “1” is correct
Annona Squamosa is the scientific name of Sugar-apple or sweetsop or Custard apple.
559. Binomial Nomenclature was founded by –

1. Charles Darwin
2. Robert Nucleus
3. Carl Linnaeus
4. Lamarck

Option “3” is correct
The formal introduction of Binomial Nomenclature system of naming species is credited to Carl Linnaeus.
560. The disease Beri Beri is caused due to the deficiency of which of the following?

1. Vitamin B₂
2. Vitamin B₁
3. Vitamin B₁₂
4. Vitamin E

Option “2” is correct
Beriberi is a disease caused by a vitamin B1 deficiency also known as thiamine deficiency.
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