All proteins contain nitrogen. Precisely, they contain about 16 per cent nitrogen. The determination of protein requirement is based on nitrogen balance, which include total nitrogen in food and excreta.

Correct Option: C

All proteins contain nitrogen. Precisely, they contain about 16 per cent nitrogen. The determination of protein requirement is based on nitrogen balance, which include total nitrogen in food and excreta.

Mitochondria are semi-autonomous organelles that likely began as freestanding prokaryotes that invaded eukaryotic cells more than a billion years ago. A symbiotic relationship eventually developed between these prokaryotic cells and their eukaryotic hosts. The former prokaryotes lost the capacity for independent existence but became indispensible to the eukaryotic cells.

Correct Option: A

Mitochondria are semi-autonomous organelles that likely began as freestanding prokaryotes that invaded eukaryotic cells more than a billion years ago. A symbiotic relationship eventually developed between these prokaryotic cells and their eukaryotic hosts. The former prokaryotes lost the capacity for independent existence but became indispensible to the eukaryotic cells.

Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis— a red, tender, hot, swollen joint. It is caused by elevated levels of uric acid in the blood. The uric acid crystallizes, and the crystals deposit in joints, tendons, and surrounding tissues.

Correct Option: A

Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis— a red, tender, hot, swollen joint. It is caused by elevated levels of uric acid in the blood. The uric acid crystallizes, and the crystals deposit in joints, tendons, and surrounding tissues.

Malaria is caused by protozoan of the genus Plasmodium. There are several stages in the life cycle of Plasmodium, including sporozoites, merozoites, and gametocytes.

Correct Option: C

Malaria is caused by protozoan of the genus Plasmodium. There are several stages in the life cycle of Plasmodium, including sporozoites, merozoites, and gametocytes.

The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.

Correct Option: C

The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.