1. Leishmaniasis is a disease caused by protozoan parasites that belong to the genus Leishmania and is transmitted by the bite of certain species of_________?
[A] Mosquito
[B] Sand fly
[C] Bee
[D] None of the above
Show Answer
Correct Answer: B [Sand fly]
Notes:
Leishmaniasis is a disease caused by protozoan parasites that belong to the genus Leishmania and is transmitted by the bite of certain species of Sandflies. The disease can present in three main ways: cutaneous, mucocutaneous, or visceral.
2. Polycythaemia is a disease related to _______?
[A] Red Blood Cells
[B] White Blood Cells
[C] Blood Serum
[D] None of the above
Show Answer
Correct Answer: A [Red Blood Cells]
Notes:
Polycythaemia is a disease related to Red Blood Cells. It refers to an increase in the number of red blood cells in the body which cause the blood to be thicker, and this, in turn, increases the risk of other health issues, such as blood clots.
3. Lac is the scarlet resinous secretion from ________?
[A] Herbs
[B] Trees
[C] Bark
[D] insects
Show Answer
Correct Answer: D [insects]
Notes:
Lac is the scarlet resinous secretion from insects. It is secreted by a number of a number of species of lac insects, of which the most commonly cultivated is Kerria lacca. The farmer gets a stick that contains eggs ready to hatch and ties it to the tree to be infested.
4. Butter is a ________?
[A] fat dispersed in milk
[B] fat dispersed in water
[C] water dispersed in fat
[D] None of the above
Show Answer
Correct Answer: A [fat dispersed in milk]
Notes:
Butter is a type of dairy product that is made by churning cream or milk until the fat particles in the milk coalesce to form a solid mass. The resulting solid mass is known as butter and it is composed mostly of butterfat, which is a type of fat that is found in milk. To be more specific, butter is a fat that is dispersed in milk. This means that the butterfat is evenly distributed throughout the milk, giving it a smooth and creamy texture. While butter is most commonly made from cow’s milk, it can also be produced from the milk of other mammals, such as sheep, goats, buffalo, and yaks.
5. Which among the following is the right location of foramen magnum ?
[A] In the Pectoral girdle
[B] Interior region of skull
[C] Posterior region of skull
[D] None of the above
Show Answer
Correct Answer: C [Posterior region of skull]
Notes:
Posterior region of skull is the right location of foramen magnum. The foramen magnum refers to a large oval opening (foramen) in the occipital bone of the skull in humans and as well as many other animals.
6. How many vertebrae does a human being have ?
[A] 33
[B] 36
[C] 29
[D] 19
Show Answer
Correct Answer: A [33]
Notes:
The vertebral column usually consists of 33 vertebrae: 24 presacral vertebrae (7 cervical, 12 thoracic, and 5 lumbar) followed by the sacrum (5 fused sacral vertebrae) and the coccyx (4 frequently fused coccygeal vertebrae).
7. Which of the following groups of plants is known as Magnoliophyta?
[A] Gymnosperms
[B] Angiosperms
[C] Algae
[D] Bryophyte
Show Answer
Correct Answer: B [Angiosperms]
Notes:
Angiosperms are known as Magnoliophyta. Angiosperms are vascular plants which have stems, roots, and leaves.They are plants that produce flowers and bear their seeds in fruits.
8. Gargling with a solution of table salt is known to provide relief for a sore throat because ____ ?
[A] It kills bacteria
[B] It works as analgesic
[C] It dehydrates water from inflammatory tissues by Osmosis
[D] None of the above reasons
Show Answer
Correct Answer: C [ It dehydrates water from inflammatory tissues by Osmosis]
Notes:
Gargling with a solution of table salt is known to provide relief for a sore throat because it dehydrates water from inflammatory tissues by Osmosis. Gargling with salt water helps cure the throat infection.
9. Which movements of “Touch me not plant” lead to closing of its leaves when touched?
[A] Nyctinastic movements
[B] Seismonastic movements
[C] Chemonastric movements
[D] Photonastic movements
Show Answer
Correct Answer: B [Seismonastic movements]
Notes:
Seismonastic Movement is caused by the mechanical stimuli like shock, touch, fast moving wind, etc. Mimosa pudica is a perennial herb which is also known as the touch me not plant or the sensitive plant, is well-known for closing its leaves (or folding its leaves inwards) when touched.
10. Which of the following cells is present in epidermis that surrounds stomatal pore in plants?
[A] Epithelial cells
[B] Guard cells
[C] Subsidiary cells
[D] Accessory cells
Show Answer
Correct Answer: B [ Guard cells ]
Notes:
Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange. They are produced in pairs with a gap between them that forms a stomatal pore.
