11. 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.
12. The science of taxonomy is related to which of the following?
[A] Plant Classification
[B] Animal Classification
[C] Microorgranism
[D] None of these
Show Answer
Correct Answer: A [Plant Classification]
Notes:
The science of taxonomy is related to Plant Classification. Carl Linnaeus is the father of modern Taxonomy. Linnaeus, in his book System Naturae, has divided all living beings into two kingdoms – the plant kingdom and the animal kingdom.
13. Which statement is true for the capsid?
[A] It consists of capsomeres
[B] This the outermost layer of most viruses
[C] It protects genetic material
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A capsid is the protein shell of a type of virus, which encloses its genetic material.
14. Which among the following is the sweetest sugar?
[A] Fructose
[B] Glucose
[C] Lactose
[D] Ribose
Show Answer
Correct Answer: A [Fructose]
Notes:
Fructose is a monosaccharide and is considered the sweetest sugar. It is mainly found in fruits, juices, honey and some vegetables. Like apple, onion, potato etc.
15. Plants that reproduce by spores are classified into which of the following?
[A] Bryophytes
[B] Sporophytes
[C] Cryptogams
[D] Thallophytes
Show Answer
Correct Answer: C [Cryptogams]
Notes:
A cryptogam is a plant or plant-like organism that reproduces by spores without flowers or seeds.
16. Which of the following may be most likely to be missing from a gram-positive bacterium?
[A] Penicillin-binding protein
[B] Peptidoglycan
[C] Lipopolysaccharide
[D] Phospholipid bilayer membrane
Show Answer
Correct Answer: C [Lipopolysaccharide]
Notes:
Gram-negative bacteria are surrounded by a thin peptidoglycan cell wall. It itself is surrounded by an outer membrane containing lipopolysaccharides.
17. What are the different stages of aerobic respiration?
[A] Glycolysis
[B] The Krebs cycle
[C] Oxidative phosphorylation
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
There are three phases of aerobic cellular respiration: glycolysis, the Krebs cycle, and oxidative phosphorylation.
18. The mode of nutrition in which organisms make their own food from simple substances is called __.
[A] autotrophic
[B] heterotrophs
[C] saprotrophs
[D] Host
Show Answer
Correct Answer: A [autotrophic]
Notes:
The mode of nutrition in which organisms make their own food from simple substances is called autotrophic.
19. Plants are the only organisms that can prepare food for themselves by using which of the following substances?
[A] water
[B] carbon dioxide
[C] minerals
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Plants are the only organisms that can prepare food for themselves by using water, carbon dioxide and minerals. The raw materials are present in their surroundings.
20. Which of the following is a heterotrophic plant?
[A] Parasitic
[B] Insectivorous
[C] Symbiotic
[D] All of these
Show Answer
Correct Answer: D [All of these]
Notes:
Heterotrophic plants which are mainly classified on the basis of their mode of nutrition are parasites, insect eaters, mortal, symbiotic.
