11. Who among the following proposed the theory of origin of life on earth?
[A] Haldane
[B] Stanley Miller
[C] Harold C. Urey
[D] Lamarck
Show Answer
Correct Answer: A [Haldane]
Notes:
The theory of origin of life on earth is proposed by Haldane. Further this theory was confirmed by the experiments conducted by Stanley L. Miller and Harold C. Urey.
12. Which vitamin is also called as “Folic acid”?
[A] Vitamin B3
[B] Vitamin B6
[C] Vitamin B9
[D] Vitamin B12
Show Answer
Correct Answer: C [Vitamin B9]
Notes:
Vitamin B9 is also called as the folic acid. Folic acid is converted into folate in the human body. Folate is essential for making DNA and RNA.
Extra info: Folic acid /B9 is recommended to the pregnants to reduce the risk of Neural Tube Defects in the foetus.
13. Which of the following branch of biology deals with the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants?
[A] Agriforestry
[B] Horticulture
[C] Arboriculture
[D] Forestry
Show Answer
Correct Answer: C [Arboriculture]
Notes:
Arboriculture is the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants.
14. Splanchnology is a branch of biology dealing with __?
[A] Study of visceral organs
[B] Study of species
[C] Study of bony joints and ligaments
[D] Study of forget including buccal cavity and stomach
Show Answer
Correct Answer: A [Study of visceral organs]
Notes:
Splanchnology is the study of the visceral organs, i.e. digestive, urinary, reproductive and respiratory systems.
15. How many of the following blood cells are there in the human body?
[A] 25 trillion
[B] 15 trillion
[C] 35 trillion
[D] 55 trillion
Show Answer
Correct Answer: A [25 trillion]
Notes:
Adult humans have an average of about 25 trillion RBCs in their bodies. Women usually have fewer RBCs than men
16. Protein is made up of which of the following?
[A] Sugar
[B] Amino acid
[C] Carbohydrate
[D] Fatty acid
Show Answer
Correct Answer: B [Amino acid
]
Notes:
All proteins are linked by a peptide link and are polymers of amino acids. Amino acid is the building block of protein.
17. Which of the following is least likely to be found along the beach?
[A] Brown algae
[B] Red algae
[C] Mosses
[D] All the above
Show Answer
Correct Answer: C [Mosses]
Notes:
Mosses usually form dense green clumps or mats, often found in moist or shady places.
18. Which place in India is called the “Gold Mine of Liverworts”?
[A] Eastern Himalayas
[B] Western Himalayas
[C] Western Ghats
[D] Eastern Ghats
Show Answer
Correct Answer: B [Western Himalayas]
Notes:
Western Himalayas is the place in India called the “Gold Mine of Liverworts”
19. Plants are the only organisms that can prepare food for themselves by using which of the following substances?
[A] water
[B] carbon dioxide
[C] minerals
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Plants are the only organisms that can prepare food for themselves by using water, carbon dioxide and minerals. The raw materials are present in their surroundings.
20. Which of the following stimulates by gibberellin hormone?
[A] shoot elongation
[B] seed germination
[C] fruit and flower maturation
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Gibberellins hormones stimulate shoot elongation, seed germination, and fruit and flower maturation.
