1. Which among the following is the most important role played by Ribosome in the cells?
[A] Synthesis of RNA
[B] Synthesis of DNA
[C] Synthesis of Proteins
[D] Metabolism of Carbohydrates
Show Answer
Correct Answer: C [Synthesis of Proteins]
Notes:
The most important role played by Ribosome in the cells is the synthesis of proteins. Ribosomes are composed of special proteins and nucleic acids.
2. Which among the following fishes does not have Central Nervous System?
[A] Dog Fish
[B] Cuttle Fish
[C] Jelly Fish
[D] Star Fish
Show Answer
Correct Answer: C [Jelly Fish]
Notes:
Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the sub-phylum Medusozoa. Jellyfish do not have specialized systems for osmoregulation, respiration and circulation, and do not have a central nervous system.
3. Clove is which part of the plant?
[A] Flower bud
[B] Calyx
[C] Inflorescence
[D] fruit
Show Answer
Correct Answer: A [Flower bud]
Notes:
Cloves are native to the Maluku Islands (or Moluccas) in Indonesia. They are the aromatic flower buds of a tree in the family Myrtaceae, Syzygium aromaticum. They are generally used as a spice.
4. Gout which is usually followed / accompanied by arthritis are characterized by high levels of uric acid in the blood and uric acid crystals become lodged in the joints. It is a ________?
[A] Viral Infection
[B] Metabolic Disorder
[C] Muscle Disorder
[D] Bacterial infection
Show Answer
Correct Answer: B [Metabolic Disorder]
Notes:
Gout is a metabolic disorder which is usually followed / accompanied by arthritis are characterized by high levels of uric acid in the blood and uric acid crystals become lodged in the joints.
5. Enteric fermentation is fermentation that takes place in the digestive systems of ruminant animals. It is one of the reasons for increased ________emissions?
[A] Carbondioxide
[B] Methane
[C] Ammonia
[D] Sulphur
Show Answer
Correct Answer: B [Methane]
Notes:
Enteric fermentation is a digestive process that takes place in the digestive systems of ruminant animals by which carbohydrates are broken down by microorganisms into simple molecules for absorption into the bloodstream of an animal.
6. The edible part of ‘cabbage’ is which of the following?
[A] Inflorescence
[B] Bud
[C] fruit
[D] none of the above
Show Answer
Correct Answer: B [Bud]
Notes:
The edible part of ‘cabbage’ is the vegetative bud. Vegetative buds are the buds from which vegetative parts like stems and leaves arise, rather than flowers.
7. Which among the following is correct about biocenosis?
[A] The study of energy transformations in the living systems
[B] Community of organisms occupying an area
[C] Study of the parts of an ecosystem with specific species
[D] A kind of abnormality related to organism living in a particular habitat
Show Answer
Correct Answer: B [Community of organisms occupying an area]
Notes:
The term Biocenosis was coined by Karl Mobius in 1877. It describes the interacting organisms which are living together in a habitat or biotope. The use of this term has declined in the 21st Century.
8. Turmeric belongs to from which one of the following family of plants?
[A] Radish
[B] Ginger
[C] Onion
[D] Clove
Show Answer
Correct Answer: B [Ginger]
Notes:
Turmeric is a product of Curcuma longa, a rhizomatous herbaceous perennial plant belonging to the ginger family Zingiberaceae. They are native to tropical South Asia. There are 133 species of Curcuma all around the world.
9. Which of the following is the correct definition of the Primary Productivity?
[A] Rate of photosynthesis in plants and photosynthetic bacteria as compared to the rate of plant consumption by herbivores
[B] Total amount of light energy converted to organic compounds in a given area per unit time.
[C] Rate of decomposition by the detritivores.
[D] Total biomass of the photosynthetic organisms in the ecosystem.
Show Answer
Correct Answer: B [ Total amount of light energy converted to organic compounds in a given area per unit time.]
Notes:
B is the correct answer.
10. Which of the following diseases is caused by consumption of a wheat bread contaminated with a fungus called Claviceps purpurea?
[A] Lathyrism
[B] Ergotism
[C] Cinchonism
[D] Mushroom Poisoning
Show Answer
Correct Answer: B [ Ergotism]
Notes:
Cleviceps purpurea is an important ascomycete that grows on the grains of rye grass cereals. It produces the drug ergot, which is both a severe poison and a useful medicinal drug. It affects the central nervous system as well as causes the contraction of involuntary muscle. Ergotism, caused by eating infected rye bread, was common in the Middle Ages, when it was known as “St. Anthony’s Fire.
