1. Deficiency of Vitamin D causes?
[A] Rickets
[B] Night blindness
[C] Goitre
[D] None of the above
Show Answer
Correct Answer: A [Rickets]
Notes:
Deficiency of Vitamin D can lead to a loss of bone density, which can result in osteoporosis and fractures (broken bones). In children the deficient of Vitamin D can cause rickets.
2. Enterobius vermicularis which affect the caecum and vermiform appendix is commonly called as ?
[A] Tapeworm
[B] Pinworm
[C] Threadworm
[D] Ringworm
Show Answer
Correct Answer: B [Pinworm]
Notes:
Enterobius vermicularis which affect the caecum and vermiform appendix is commonly called as Pinworm. Pinworms are tiny, narrow worms and are white in color and less than a half-inch long.
3. Vitamin A, D & C are respectively called as ____________ ?
[A] Retinol, Ascorbic Acid, Calciferol
[B] Retinol, Calciferol, Ascorbic Acid
[C] Pyridoxal. Calciferol. Ascorbic Acid
[D] Ascorbic Acid, Pyridoxal. Calciferol
Show Answer
Correct Answer: B [Retinol, Calciferol, Ascorbic Acid]
Notes:
Vitamin A, D & C are respectively called as Retinol, Calciferol and Ascorbic Acid. Vitamin A is essential for good vision, a healthy immune system, and cell growth. Vitamin D is a fat-soluble vitamin whereas Vitamin C is a water-soluble vitamin which is found in many foods, particularly fruits and vegetables.
4. The hard part of a stem of a plant is because of ________?
[A] Sclerenchyma
[B] Xylem
[C] Pholem
[D] Stomata
Show Answer
Correct Answer: B [Xylem]
Notes:
The hard part of a stem of a plant is because of Xylem. Stem supports leaves, flowers and fruits. It also transports fluids between the roots and the shoots in the xylem and phloem, stores nutrients, and produces new living tissue.
5. Who among the following coined the term Bacterium?
[A] Antonie van Leeuwenhoek
[B] Christian Gottfried Ehrenberg
[C] Louis Pasteur
[D] Robert Koch
Show Answer
Correct Answer: B [Christian Gottfried Ehrenberg]
Notes:
Christian Gottfried Ehrenberg was a was one of the most famous and productive scientists of his time. He was a German naturalist, zoologist, comparative anatomist, geologist, and microscopist. He coined the term Bacterium.
6. A treatment with which among the following plant hormones would prevent water loss from the plant leaves, by reducing transpiration, in times of low water availability?
[A] Ethylene
[B] Abscisic Acid
[C] Gibberelic Acid
[D] Auxin
Show Answer
Correct Answer: B [Abscisic Acid]
Notes:
A treatment with abscisic acid would prevent water loss from the plant leaves, by reducing transpiration, in times of low water availability.
7. The monocarpic plants produce flowers only ________?
[A] Once in a year
[B] Once in a season
[C] Once in lifetime
[D] One flower per plant
Show Answer
Correct Answer: C [Once in lifetime]
Notes:
The monocarpic plants produce flowers only once in lifetime. Monocarpic plants are those that flower, set seeds and then die.
8. A health problem which is characterized by inability of the bone marrow to produce the red blood cells is placed in which among the following groups?
[A] Anuria
[B] Aplastic Anemia
[C] Pernicious Anemia
[D] Aplasia
Show Answer
Correct Answer: B [Aplastic Anemia]
Notes:
A health problem which is characterized by inability of the bone marrow to produce the red blood cells is placed in Aplastic Anemia. It causes a deficiency of all blood cell types: red blood cells, white blood cells, and also platelets.
9. Which hormones does pancreas secret?
[A] Testosterone
[B] Progesterone
[C] Prolactin
[D] Glucagon and insulin
Show Answer
Correct Answer: D [Glucagon and insulin]
Notes:
The Islets of Langerhans are the endocrine cells of the pancreas that produce and secrete hormones such as insulin and glucagon into the bloodstream. The pancreatic hormones, insulin and glucagon, work together to maintain the proper level of sugar (glucose) in the blood.
10. Who among the following analysed the DNA for the first time ?
[A] Watson and Krick
[B] Karl von Frisch
[C] M. W. Nirenberg
[D] Hargobind Khurana
Show Answer
Correct Answer: A [Watson and Krick]
Notes:
The discovery in 1953 of the double helix, the twisted-ladder structure of deoxyribonucleic acid (DNA), by James Watson and Francis Crick marked a milestone in the history of science and gave rise to modern molecular biology, which is largely concerned with understanding how genes control the chemical processes.