11. Which of the following branch of biology deals with the study of pollen grains?
[A] Psychology
[B] Palynology
[C] Pathology
[D] Parasitology
Show Answer
Correct Answer: B [Palynology]
Notes:
Palynology is the study of pollen grains produced by seed plants and spores. It represents the land flora and can be used in many different disciplines.
12. Lepidopterology is a branch of biology, which deals with the studies of which of the following?
[A] Lipids and fats
[B] Butterflies and moths
[C] Tongue
[D] Lakes and Ponds
Show Answer
Correct Answer: B [Butterflies and moths]
Notes:
Lepidopterology is a branch of entomology that deals with the scientific study of moths and three superfamilies of butterflies.
13. Which bacteria are involved in the oxidation of ammonia into nitrate?
[A] Acetobactor
[B] Nitrococcus
[C] Nitrobacter
[D] Both Nitrococcus and Nitrobacter
Show Answer
Correct Answer: D [Both Nitrococcus and Nitrobacter]
Notes:
The conversion of ammonia into nitrate is a two-step process where ammonia is initially oxidised to nitrite by Nitrosomonas or Nitrococcus, this nitrite is then further oxidised to nitrate by Nitrobacter. This series of conversion is known as nitrification and is an important part of the nitrogen cycle, which is crucial for primary productivity in many ecosystems.
14. Which of the following virus is covered?
[A] Adeno
[B] Herpes
[C] Polio
[D] None of these
Show Answer
Correct Answer: B [Herpes]
Notes:
The Herpesviridae are a large family of DNA viruses. It causes infections and some diseases in animals, including humans. Members of this family are also known as herpesviruses.
15. Chemotaxis is a phenomenon of__?
[A] swimming away of bacteria
[B] swimming towards a bacteria
[C] swimming away or towards of bacteria in presence of chemical compound
[D] All of the above
Show Answer
Correct Answer: C [swimming away or towards of bacteria in presence of chemical compound]
Notes:
Chemotaxis is a phenomenon of swimming away or towards of bacteria in presence of chemical compound.
16. Which of the following is analogous to mesosome of bacteria?
[A] Mitochondria of eukaryotes
[B] Golgi apparatus of eukaryotes
[C] Lysosomes of eukaryotes
[D] None of these
Show Answer
Correct Answer: A [Mitochondria of eukaryotes]
Notes:
analogous to mesosome of bacteria is Mitochondria of eukaryotes.
17. Which of the following is an indicator of SO2 pollution of air?
[A] Puffballs
[B] Mushrooms
[C] Mosses
[D] Lichens
Show Answer
Correct Answer: D [Lichens]
Notes:
Lichens are good indicators of sulfur dioxide pollution in the environment. Lichens are relationships between fungi and algae.
18. In Bryophyta, the adult plant body is__?
[A] Sporophyte
[B] Epiphyte
[C] Sporophyll
[D] Gametophyte
Show Answer
Correct Answer: D [Gametophyte]
Notes:
A gametophyte is one of two alternative multicellular stages in the life cycle of plants and algae.
19. Which of the following are the roots of gymnosperms?
[A] Tap root
[B] Adventitious roots
[C] Rhizoid
[D] Rhizophores
Show Answer
Correct Answer: A [Tap root]
Notes:
The root system present in gymnosperms is the taproot system. Tap roots somewhat dilute the root of the upright plant and grow vertically downwards.
20. Which of the following is not a function of permanent tissue?
[A] help in floating
[B] Stores food in the form of starch, proteins, oils and fats
[C] gives rise to epidermis layer, cortex, endodermis, ground tissue and vascular tissue
[D] contain chloroplast which helps in carrying out photosynthesis
Show Answer
Correct Answer: C [gives rise to epidermis layer, cortex, endodermis, ground tissue and vascular tissue]
Notes:
Meristematic tissue gives rise to the epidermis layer, cortex, endodermis, ground tissue, and vascular tissue.
