11. Which of the following branch of biology deals with the study of viruses?
[A] Cytology
[B] Mycology
[C] Virology
[D] Taxonomy
Show Answer
Correct Answer: C [Virology]
Notes:
Virology, the branch of microbiology that deals with the study of viruses.
12. Which of the following is not a part of the three kingdom Classification by Ernest Haeckel?
[A] Plantae
[B] Protista
[C] Animalia
[D] Monera
Show Answer
Correct Answer: D [Monera]
Notes:
The Three Kingdom of Classification includes Plantae, Protista and Animalia. It was proposed by Ernest Haeckel.
13. Which of the following is the largest group of the plant kingdom?
[A] Thallophyta
[B] Bryophyta
[C] Pteridophyta
[D] Euglena
Show Answer
Correct Answer: A [Thallophyta]
Notes:
The plant kingdom consists of 390,000 species known till date. The plant kingdom is divided into five major groups: Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and Angiosperms.
14. Red algae are known as__?
[A] Chlorophyceae
[B] Rhodophyceae
[C] Phaeophyceae
[D] None of these
Show Answer
Correct Answer: B [Rhodophyceae]
Notes:
Rhodophyceae (red algae) are a class of seaweeds, most of which are reddish in color, with a filamentous or membranous basic shape.
15. In which of the following hemocaelic body cavity is found?
[A] Cockroach
[B] Lizard
[C] Mosquito
[D] Honeybee
Show Answer
Correct Answer: A [Cockroach]
Notes:
Hemocoelic body cavity is a characteristic of Cockroach.
16. What is the shape of enveloped viruses?
[A] icosahedral
[B] helical
[C] roughly spherical
[D] complex
Show Answer
Correct Answer: C [roughly spherical]
Notes:
The shape of enveloped viruses is roughly spherical. Enveloped virus have glyco-protein spikes that arise from their envelopes.
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. Vaucheria and Chara are examples of?
[A] Euglenophyta
[B] Coenocytic
[C] Rhodophyta
[D] None of these
Show Answer
Correct Answer: B [Coenocytic]
Notes:
No septa are found in Vaucheria except in the reproductive stage. Many of its nuclei are moved around which is known as the alga coenocytic thallus.
19. Which of the following are the functions of the xylem?
[A] transports food through the leaf
[B] transports water from the roots to the leaves
[C] role in the survival of a plant
[D] None of these
Show Answer
Correct Answer: B [transports water from the roots to the leaves]
Notes:
The veins of the leaves are provided with vascular tissue called xylem and phloem. The xylem transports water from the roots to the leaves and the phloem transports food through the leaf to the rest of the plant.
20. Where are the protons stored in the mitochondria?
[A] inner membrane
[B] intermembrane space
[C] outer membrane
[D] none of these
Show Answer
Correct Answer: B [intermembrane space]
Notes:
In the mitochondria, the hydrogen ions, these protons, are concentrated in the intermembrane space due to the electron transport chain.
