11. Fat present below the skin surface in our body, acts as a barrier against which of the following losses?
[A] Loss of heat from the body
[B] loss of essential body fluids
[C] loss of salts from the body
[D] entry of harmful micro-organisms from the environment
Show Answer
Correct Answer: A [Loss of heat from the body]
Notes:
Adipose tissue that’s fat cells which are under the skin act as barrier to loss of the heat from the body and it protects the skin from entering of highly reactive UV rays of the sun. Fat present below the skin surface in our body, act as an insulator against loss of heat from the body. The deposited fat works as barrier, which prevents loss of heat.
12. In a bisexual flower, if androecium and gynaecium mature at different times, what is the name given to the phenomenon?
[A] Dichogamy
[B] Herkogamy
[C] Heterogamy
[D] Monogamy
Show Answer
Correct Answer: A [Dichogamy]
Notes:
Dichogamy The condition in which the male and female reproductive organs of a flower mature at different times, thereby ensuring that self-fertilization does not occur.
13. What was “Albert Szent-Gyorgyi” famous for?
[A] As a Hungarian biochemist
[B] As a Hungarian physicist
[C] As a Hungarian mathematician
[D] As a Hungarian novelist
Show Answer
Correct Answer: A [As a Hungarian biochemist ]
Notes:
Albert Szent-Gyorgyi was a Hungarian biochemist who won the Nobel Prize in Physiology or Medicine in 1937. He is credited with first isolating vitamin C and discovering the components and reactions of the citric acid cycle. He was also active in the Hungarian Resistance during World War II and entered Hungarian politics after the war.
14. Traumatology is related to which of the following statement?
[A] Study of hair
[B] Study of skates and rays
[C] Study of wounds and turnover
[D] Study of nutrition
Show Answer
Correct Answer: C [Study of wounds and turnover]
Notes:
Traumatology is the study of wounds and injuries caused to a person by accidents or violence, and the surgery and repair of damage.
15. Francis Galton is related to which of the following science?
[A] Eugenics
[B] Microbiology
[C] Bryology
[D] Ecology
Show Answer
Correct Answer: A [Eugenics]
Notes:
Francis Galton is related to Eugenics. Galton defined eugenics as “the study of all agencies under human control which can improve or impair the racial quality of future generations”.
16. Which of the following is not a feature of mycoplasma?
[A] Pleomorphic
[B] Lacks cell wall
[C] Both 1 & 2 are correct
[D] Cannot live without oxygen
Show Answer
Correct Answer: D [Cannot live without oxygen]
Notes:
Mycoplasma is an anaerobic organism that requires oxygen to survive.
17. Which of the following is a morphological feature of paramyxovirus?
[A] Fragile viruses often visualised with RNA spewing from the inside
[B] Elongate viruses
[C] Icosahedral viruses with envelope
[D] Very large viruses
Show Answer
Correct Answer: A [Fragile viruses often visualised with RNA spewing from the inside]
Notes:
Paramyxovirus are a family of single-stranded RNA viruses that cause a variety of infections in vertebrates. Many important human diseases are caused by paramyxoviruses.
18. Where is the genetic system located in prokaryotes?
[A] nucleoid
[B] chromatin
[C] nuclear material
[D] all of these
Show Answer
Correct Answer: D [all of these]
Notes:
The genetic system located in prokaryotes in nucleoid, chromatin and nuclear material.
19. Which of the following is a parasitic alga?
[A] Vaucheria
[B] Polysiphonia
[C] Cephaleuros
[D] Batrachospermum
Show Answer
Correct Answer: C [Cephaleuros]
Notes:
Cephaleuros is a genus of parasitic thalloid green algae. It includes about 14 species. Its common name is red rust.
20. What is the pollination medium in Malacophilous?
[A] bats
[B] water
[C] air
[D] snails
Show Answer
Correct Answer: D [snails]
Notes:
Snails are the pollination medium in Malacophilous. Pollination is the process in which the pollens are transferred from anther to stigma.
