11. Deficiency in which among the following leads to beriberi disease?
[A] Vitamin B1
[B] Vitamin B2
[C] Vitamin B3
[D] Vitamin B6
Show Answer
Correct Answer: A [Vitamin B1]
Notes:
Vitamin B1/Thiamine deficiency leads to a disease called beriberi. Over polishing of rice also leads to beriberi.
12. Mammology is the branch of science related to the study of?
[A] mammals
[B] breasts
[C] mollusks
[D] none of these
Show Answer
Correct Answer: A [mammals]
Notes:
Mammology is a branch of biology that deals with the study of mammals.
13. Who among the following was awarded the Nobel Prize in Medicine in 1926 for his contribution to cancer research?
[A] Christiaan Eijkman
[B] Johannes Fibiger
[C] Julius Wagner-Jauregg
[D] Charles-Jules-Henri Nicolle
Show Answer
Correct Answer: B [Johannes Fibiger]
Notes:
Johannes Fibiger was awarded the Nobel Prize in Medicine in 1926 for his contribution to cancer research.
14. Who among the following is considered to be the father of taxonomy?
[A] Engler
[B] Karl Landsteiner
[C] Linnaeus
[D] RH Whittaker
Show Answer
Correct Answer: C [Linnaeus
]
Notes:
The Father of Taxonomy is Carolus Linnaeus. He classified organisms into five parts.
15. Which of the following is the simplest amino acid?
[A] Glycine
[B] Tyrosine
[C] Alanine
[D] Asparagine
Show Answer
Correct Answer: A [Glycine]
Notes:
Glycine is the simplest amino acid. It contains a single hydrogen atom as a side chain. It is also a type of proteinogenic amino acid.
16. What is the approximate number of specific cells in the human body?
[A] 200 types
[B] 300 types
[C] 250 types
[D] 150 types
Show Answer
Correct Answer: A [200 types]
Notes:
Scientists estimate that the human body contains around 37 trillion cells and 200 different cell types. This includes 50 billion fat cells and 2 billion heart muscle cells. The number of bacterial cells inside a human body is around 38 trillion. This is much closer to the estimated 30 trillion human cells in the body.
Scientists used data reported by others about individual organs and some mathematical modeling to obtain their results.
17. In which of the following β-oxidation mainly occurs?
[A] Mitochondria
[B] Cytoplasm
[C] Nucleus
[D] Chloroplast
Show Answer
Correct Answer: A [Mitochondria
]
Notes:
β-oxidation in mammals occurs in both mitochondria and peroxisomes, whereas plants and most fungi switch off β-oxidation.
18. Which of the following viruses shows the transformation of infected cells?
[A] Hepatitis B virus
[B] Human T cell lymphotronic virus type I
[C] Epstein-Barr virus
[D] All of these
Show Answer
Correct Answer: D [All of these]
Notes:
Hepatitis B virus, Human T cell lymphotronic virus type I and Epstein-Barr virus are the viruses shows the transformation of infected cells.
19. Which of the following is the smallest gymnosperm?
[A] Cycas
[B] Pinus
[C] Zamia
[D] Gnetum
Show Answer
Correct Answer: C [Zamia]
Notes:
The smallest gymnosperm is Zamia pygmia which reaches a height of 25 cm.
20. Which one of the following is the innermost part of a flower and the female reproductive organ?
[A] Stamen
[B] Pistil
[C] Stigma
[D] Sepals
Show Answer
Correct Answer: B [Pistil]
Notes:
The pistil is the innermost part of a flower and the female reproductive organ consists of three parts – the stigma, the style and the ovary collectively known as the pistil.
