11. Which of the following is the easiest way of finding out the nutritional status for large number of children in a short time? (UPSC Prelims 1982)
[A] Studying their behaviour
[B] Studying their hair, face and eyes
[C] Measuring their height and weight
[D] All of the above
Show Answer
Correct Answer: C [Measuring their height and weight]
Notes:
The nutritional status of a large number of children can be calculated by knowing their body mass index .It is a physical measurement used to assess total amount of body fat. It is calculated by dividing your weight in kilograms (kg) by the square of your height in metres (m2). Depending on the BMI value calculated, one may be underweight, normal weight, overweight or obese.
12. Which vitamin is also called as retinol?
[A] Vitamin A
[B] Vitamin C
[C] Vitamin D
[D] Vitamin K
Show Answer
Correct Answer: A [Vitamin A]
Notes:
Vitamin A is also called as retinol deficiency of which results in xeropthalmia. Chemical formula for Vitamin A is C20H30O.
13. Which gas is released during the process of photosynthesis in plants?
[A] Carbon dioxide
[B] Methane
[C] Oxygen
[D] Nitrogen
Show Answer
Correct Answer: C [Oxygen]
Notes:
Inputs of photosynthesis are carbon dioxide and water and outputs are glucose and oxygen. Photosynthesis occurs in the presence of sunlight.
14. Which of the following is studied in Ethnobotany?
[A] Practical use of plants by local culture and people
[B] Relations between Plants and peoples Behvaior
[C] Comparison of different plants in a particular area
[D] Study of relations of plants, animals and animals in an area
Show Answer
Correct Answer: A [Practical use of plants by local culture and people]
Notes:
Ethnobotany is the study of the plants of an area and their practical uses through the traditional knowledge of a local culture and people.
15. Which of the following is not an example of Fungi?
[A] Mushroom
[B] Euglena
[C] Mucor
[D] Albugo
Show Answer
Correct Answer: B [Euglena]
Notes:
Euglena is an example of Protista. Mushroom, Mucor, and Albugo are part of Fungi.
16. Which of the following are the most primitive vascular plants?
[A] Mosses
[B] Cycads
[C] Kelps
[D] Ferns
Show Answer
Correct Answer: D [Ferns]
Notes:
A fern is a member of a group of vascular plants. It reproduces by means of spores and has neither seeds nor flowers.
17. In which of the following hormones is stimulation growth factor found?
[A] Gibberellins
[B] Cytokinins
[C] Auxins
[D] Abscisic Acid
Show Answer
Correct Answer: B [Cytokinins]
Notes:
The stimulating growth factor was found to be cytokinin, a hormone that promotes cell division.
18. Flame cells are the excretory structures for__.
[A] Annelida
[B] Coelenterates
[C] Platyhelminthes
[D] Echinodermata
Show Answer
Correct Answer: C [Platyhelminthes]
Notes:
Flame cells are the excretory structures for Platyhelminthes. Platyhelminthes are best described as flatworms, triploblastic, acoelomate animals.
19. Filariasis is caused by __.
[A] roundworms
[B] pinworm
[C] hookworm
[D] none of these
Show Answer
Correct Answer: A [roundworms]
Notes:
Filariasis is caused by roundworms. Lymphatic filariasis is caused by Wuchereria bancrofti, Brugia timori and Brugia malayi. This causes thickening of the skin and tissues present under the skin.
20. Which of the following is also known as blind-worm?
[A] Urodela
[B] Apoda
[C] Anura
[D] None of these
Show Answer
Correct Answer: B [Apoda]
Notes:
Apoda is also known as a blind worm because its eyes are covered with skin or bone.
