11. Which of the following diseases is hereditary?
[A] Haemophilia
[B] Tuberculosis
[C] Cancer
[D] Dysentery
Show Answer
Correct Answer: A [Haemophilia]
Notes:
Haemophilia is a mostly inherited genetic disorder that impairs the body’s ability to make blood clots, a process needed to stop bleeding. This results in people bleeding longer after an injury, easy bruising, and an increased risk of bleeding inside joints or the brain.
12. The sensation of fatigue in the muscles after prolonged strenuous physical work is caused by?
[A] a decrease in the supply of oxygen
[B] minor wear and tear of muscle fibres
[C] the depletion of glucose
[D] the accumulation of lactic acid
Show Answer
Correct Answer: D [the accumulation of lactic acid]
Notes:
The sensation of fatigue which the muscles feel after a prolonged and a strenuous physical workout is caused by the accumulation of lactic acid.
This is so because lactic acid buildup tends to cause fatigue and soreness in the muscles.
There is a burning sensation felt up in the muscles when buildup of acid happens in muscles during exercise. This is also known as acidosis.
13. Which vitamin is also called as “Pantothenic acid”?
[A] Vitamin K
[B] Vitamin D
[C] Vitamin B3
[D] Vitamin B5
Show Answer
Correct Answer: D [Vitamin B5]
Notes:
Vitamin B5 is also called as Pantothenic acid and it was discovered by Roger J.Williams in 1933. Chemical formula for Vitamin B5 is C9H17NO5.
14. To which of the following kingdoms does the yeast belong to?
[A] Bacteria
[B] Virus
[C] Fungus
[D] None of the above.
Show Answer
Correct Answer: C [Fungus]
Notes:
Yeast is an unicellular eukaryotic micro organism belonging to the family of fungus.
15. Which of the following person related to the invention of DDT?
[A] Paul Muller
[B] Roe Berth
[C] Frances Kelsey
[D] Jack Horner
Show Answer
Correct Answer: A [Paul Muller]
Notes:
DDT was first synthesized in 1874 by Austrian chemist Othmar Zidler. The insecticidal action of DDT was discovered in 1939 by the Swiss chemist Paul Hermann Müller.
16. Cholera disease is caused by_?
[A] Fungi
[B] Virus
[C] Bacteria
[D] Protozoa
Show Answer
Correct Answer: C [Bacteria]
Notes:
Cholera is an acute diarrheal disease caused by infection of the intestine with Vibrio cholerae bacteria.
17. Which of the following group is used to represent disease-related fungi?
[A] Penicillium
[B] Truffles, mushrooms and morels
[C] Smuts, rusts and moulds
[D] All of the above
Show Answer
Correct Answer: C [Smuts, rusts and moulds
]
Notes:
Smuts, rusts, and molds groups is used to represent disease-related fungi.
18. Dicotyledonous branches are found in which of the following?
[A] Fern
[B] Funaria
[C] Liverworts
[D] Marchantia
Show Answer
Correct Answer: C [Liverworts]
Notes:
Dicotyledonous branches are found in Liverworts. Liverworts are also moss-like land plants that do not have a vascular system.
19. Which tissues make up the cortex, pericycle, and pith?
[A] Procambium
[B] Protoderm
[C] Ground Meristem
[D] None of these
Show Answer
Correct Answer: C [Ground Meristem]
Notes:
Ground Meristem tissues make up the cortex, pericycle, and pith. The cells are large with thick walls.
20. What are examples of climbing roots?
[A] Banyan tree
[B] Epiphytes orchids
[C] Money plant
[D] Bombax
Show Answer
Correct Answer: C [Money plant]
Notes:
Climbing roots emerge from the knots and are attached to support for climbing them. Thus, they provide support to the plant. Money plant is a prime example of this.
