11. Who gave theory of photosynthesis?
[A] Maurice Hilleman
[B] Jack Horner
[C] Jan Ingenhousz
[D] Franz Mesmer
Show Answer
Correct Answer: C [Jan Ingenhousz]
Notes:
Jan Ingenhausen is a Dutch-born British physician and scientist, best known for his discovery of the process of photosynthesis, by which green plants absorb carbon dioxide and release oxygen in sunlight.
12. Germplasm theory was given by which of the following biologists?
[A] August Weismann
[B] Georges Cuvier
[C] Arthur Tansley
[D] None of these
Show Answer
Correct Answer: A [August Weismann]
Notes:
Germ-plasm theory, the concept of the physical basis of heredity, articulated by the 19th century biologist August Weismann.
13. Which of the following is a sexual spore?
[A] Ascospore
[B] Sporangiospore
[C] Conidia
[D] Zoospore
Show Answer
Correct Answer: A [Ascospore]
Notes:
The ascospore is a spore contained in an ascus; this type of spore is typical of fungi classified as ascomycetes.
14. What is the translucent fluid part of the cytoplasm called?
[A] Cell protein
[B] Cytosol
[C] Matrix
[D] Organelles
Show Answer
Correct Answer: B [Cytosol]
Notes:
Cytosol is the liquid found inside cells. It is a water-based solution that floats organelles, proteins, and other cell structures.
15. Who among the following is considered as the “Father of Indian Phycology”
[A] Prof. M.O.P. Iyenger
[B] Prof. J.N. Mishra
[C] Prof. R.R. Mishra
[D] Prof. R.N. Singh
Show Answer
Correct Answer: A [Prof. M.O.P. Iyenger]
Notes:
MOP Iyengar from Madras is considered the father of Indian Phycology. He discovered Fritschiella heterotrichus terrestrial algae.
16. What is the common name of pteridophytes?
[A] Ferns
[B] conifers
[C] flowering plant
[D] None of these
Show Answer
Correct Answer: A [Ferns]
Notes:
The common name of pteridophytes is Ferns. Ferns are vascular plants that differ from lycophytes in having true leaves that are often pinnate.
17. Megasporangium in Gymnosperms is also called as__?
[A] Macrosporangiate
[B] Nucellus
[C] Microsporangium
[D] Male strobili
Show Answer
Correct Answer: B [Nucellus]
Notes:
Megasporangium in Gymnosperms is also called Nucellus. Megasporangium is the structure in certain spore-bearing plants in which the megaspores are formed.
18. Which of the following are the smallest organisms that cause disease in plants?
[A] Viruses
[B] Fungi
[C] Bacteria
[D] Mycoplasma
Show Answer
Correct Answer: D [Mycoplasma]
Notes:
Mycoplasma is the smallest organism that causes disease in plants. Mycoplasma is the smallest prokaryotic organism. It is capable of independent growth, division, and reproduction.
19. Which of the following pair is not correctly matched?
[A] Arthropoda – spiders
[B] Mollusca – oysters
[C] Echinodermata – Starfish
[D] Chordata – snails
Show Answer
Correct Answer: D [Chordata – snails]
Notes:
Snail is an example of Phylum Mollusca. Their body is divided into head, legs and visceral mass and their head consist of antennae with eyes. They have an open circulatory system.
20. In which order are lizards and snakes divided into reptiles?
[A] Order Testudines
[B] Order Crocodilia
[C] Order Squamata
[D] Order Sphenodontia
Show Answer
Correct Answer: C [Order Squamata]
Notes:
In order Squamata, lizards and snakes are divided. Whereas Turtles, Tortoises, Terrapins are divided into order Testudines, Crocodiles, Alligators are divided into order Crocodilia and Tuataras are divided into order Sphenodontia.
