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. Consider the following statements about B group Vitamins:
- Most of them are organic acids
- Most of them are water soluble
- Most of them are synthesized in the body
Which of the above statements is / are correct?
[A] Only 1 and 3
[B] Only 2
[C] Only 1 & 2
[D] 1, 2 & 3
Show Answer
Correct Answer: B [Only 2]
Notes:
B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism. This is the correct statement as most of the B Vitamins are water-soluble. They are not primarily organic acids nor are they mostly synthesized in the body. They’re found in highest abundance in meat, and dietary supplements containing all eight are referred to as a vitamin B complex, which indicates that they’re more often ingested rather than synthesized.
3. Which plants grow under water stress conditions of deserts?
[A] Epiphytes
[B] Xerophytes
[C] Sciophytes
[D] Heliophytes
Show Answer
Correct Answer: B [Xerophytes]
Notes:
A Xerophyte is a species of plant that has adapted to survive in an environment with little liquid water, such as a desert or an ice- or snow-covered region in the Alps or the Arctic.
4. Which of the following forms of Nitrogen is taken up by Higher Plants?
[A] Nitrites only
[B] Nitrates only
[C] Nitrates and Ammonium
[D] Urea
Show Answer
Correct Answer: C [Nitrates and Ammonium]
Notes:
Plants absorb ammonium and nitrate during the nitrogen assimilation process, after which they are converted into nitrogen-containing organic molecules, such as amino acids and DNA. Animals cannot absorb nitrates directly. They receive their nutrient supplies by consuming plants or plant-consuming animals.
5. The young chicks come out of eggs within how many days after being hatched by the hen?
[A] One week
[B] Two weeks
[C] Three weeks
[D] Four weeks
Show Answer
Correct Answer: C [Three weeks]
Notes:
A hen that is committed to hatching chicks is known as a broody. The state of being broody is controlled by instinct, hormones and lighting conditions. Chicken come out of the eggs within the 21 days after being hatched by the hen. Some breeds take a little less and some a little longer. If the egg has not hatched after 25 days, it should be removed from the broody hen or incubator. Eggs need constant heat during the full incubation period for the embryo to develop into a chick.
6. Which one of the following diseases is caused due to defective genes?
[A] Ulcer
[B] Haemophilia
[C] Diabetes
[D] Cancer
Show Answer
Correct Answer: B [Haemophilia]
Notes:
Haemophilia is a mostly inherited genetic disorder that impairs the body’s ability to make blood clots, a process needed to stop bleeding. This results in people bleeding longer after an injury, easy bruising, and an increased risk of bleeding inside joints or the brain.
7. Which vitamins are abundant in cod liver oil?
[A] Vitamins A and C
[B] Vitamins A and D
[C] Vitamins E and K
[D] Vitamins B and C
Show Answer
Correct Answer: B [Vitamins A and D]
Notes:
Cod liver oils from fish are rich in vitamins A and D and hence these are recommended for the chikdren to prevent the rickets(bone deformation).
8. Which of the following branch of biology deals with the study of viruses?
[A] Cytology
[B] Mycology
[C] Virology
[D] Taxonomy
Show Answer
Correct Answer: C [Virology]
Notes:
Virology, the branch of microbiology that deals with the study of viruses.
9. In which branch of biology is the study of breasts deals?
[A] Mammology
[B] Mastology
[C] Malacology
[D] None of these
Show Answer
Correct Answer: B [Mastology]
Notes:
Mastology can refer to the study of the human breast and related diseases.
10. Phototropism Theory is related to which of the following scientist?
[A] Jane Goodall
[B] Charles Darwin
[C] Francis Galton
[D] None of these
Show Answer
Correct Answer: B [Charles Darwin]
Notes:
Plant physiologists have investigated phototropism for over 100 years. The best known early research on phototropism was by Charles Darwin.
