11. Which of the following possesses the characteristics of both plants and animals?
[A] Azolla
[B] Lycopodium
[C] Euglena
[D] Sphagnum
Show Answer
Correct Answer: C [Euglena
]
Notes:
Euglena is an example of the Protista kingdom and has both plant and animal characteristics.
12. Which of the following is not a part of the sexual cycle of fungi?
[A] Meiosis
[B] Karyogamy
[C] Mitosis
[D] Plasmogamy
Show Answer
Correct Answer: C [Mitosis]
Notes:
Mitosis is a process where a single cell divides into two identical daughter cells.
13. Which of the following causes chloroplasts to be green?
[A] because they contain the pigment cobalt
[B] because they contain the pigment chlorophyll
[C] because they contain the pigment carotenoids
[D] because they contain the pigment betacyanins
Show Answer
Correct Answer: B [because they contain the pigment chlorophyll]
Notes:
Chloroplasts are green because they contain the pigment chlorophyll, which is important for photosynthesis. Chlorophyll occurs in many different forms. Chlorophyll a and b are the major pigments of higher plants and green algae.
14. What is the condition called when a virus enters a cell but does not replicate itself immediately?
[A] lysogeny
[B] fermentation
[C] symbiosis
[D] synergism
Show Answer
Correct Answer: A [lysogeny]
Notes:
Lysogeny is a type of life cycle that occurs when a bacteriophage infects certain types of bacteria.
15. 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.
16. Which of the following is a characteristic of Kingdom Plantae?
[A] They are non-motile
[B] They make their own food hence are called autotrophs
[C] It contain photosynthetic pigments called chlorophyll present in the plastids
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The Plant Kingdom has the following distinctive features:They are motionless, they make their own food, hence they are called autotrophs, they reproduce asexually by vegetative propagation or sexually, these are multicellular eukaryotes, the plant cell has an outer cell wall and a large central vacuole, Plastids in plants contain photosynthetic pigments called chlorophyll, they have separate organs for anchoring, reproduction, support and photosynthesis.
17. Whooping cough is caused by which of the following?
[A] Bordetella pertussis
[B] Helicobacter pylori
[C] Yersinia pestis
[D] Treponema pallidum
Show Answer
Correct Answer: A [Bordetella pertussis]
Notes:
Pertussis is a respiratory disease commonly known as whooping cough. It is a very contagious disease caused by a type of bacteria called Bordetella pertussis.
18. Bacteria come under which type of organisms?
[A] Single-celled
[B] Microscopic
[C] Living
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Bacteria are single-celled microorganisms that do not have a nucleus and other cell organelles. They are classified as prokaryotic organisms.
19. Which of the following is not a form of bacteria?
[A] Coccus
[B] Bacillus
[C] Vibrio
[D] Lobosa
Show Answer
Correct Answer: D [Lobosa]
Notes:
Lobosa is a taxonomic group of amoeba in the Amoebozoa genus.
20. Which is the largest Bryophyta?
[A] Funaria (Moss)
[B] Marchantia
[C] Megaceros
[D] Dowsonia
Show Answer
Correct Answer: D [Dowsonia]
Notes:
Dawsonia is a taxonomy of moss. They are the largest bryophytes. Dawsonia plants are generally known for being tall. It has thicker leaves than the common moss.
