11. Which is the largest muscle in the human body?
[A] Gluteus maximus
[B] Biceps brachii
[C] Masseter
[D] Pectorlis major
Show Answer
Correct Answer: A [Gluteus maximus]
Notes:
Gluteus maximus is the largest muscle in the human body located at the lower back, it is also called as the buttocks.
12. Which branch of biology is known for the study of flowers?
[A] Dendrology
[B] Anatomy
[C] Agrostology
[D] Anthology
Show Answer
Correct Answer: D [Anthology]
Notes:
The study of flowers and flowering plants is known as anthology. Anthos means a flower and Logia means collection.
13. Which of the following is the function of contractile vacuole?
[A] To carry out pinocytosis
[B] To carry out metabolic process
[C] To pump excess water out of the cell
[D] To carry out phagocytosis
Show Answer
Correct Answer: C [To pump excess water out of the cell]
Notes:
Contractile vacuoles that regulate intracellular water balance by storing and expelling excess water from the cell.
14. Which of the following is a characteristic of angiosperms?
[A] Seed-bearing plants
[B] Seeds are enclosed within fruits
[C] Both 1 & 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
Characteristics of angiosperms: Seed plants, seeds are sealed inside the fruit, presence of well differentiated plant body, produce flowers during their lifetime, presence of two subtypes – monocotyledonous and dicotyledonous
15. Cholera disease is caused by_?
[A] Fungi
[B] Virus
[C] Bacteria
[D] Protozoa
Show Answer
Correct Answer: C [Bacteria]
Notes:
Cholera is an acute diarrheal disease caused by infection of the intestine with Vibrio cholerae bacteria.
16. In which of the following part of leaves does photosynthesis takes place?
[A] chloroplasts
[B] Stomata
[C] Mitocondria
[D] None of these
Show Answer
Correct Answer: A [chloroplasts]
Notes:
Photosynthesis occurs inside the chloroplasts that sit in the mesophyll of leaves.
17. Which of the following serves as a storage room for starch in vegetables and fruits?
[A] parenchymatous
[B] collenchyma
[C] sclerenchyma
[D] All of the above
Show Answer
Correct Answer: A [parenchymatous]
Notes:
Parenchymatous serves as a storage room for starch in vegetables and fruits.
18. Which of the following pigments gives the yellow colour to leaves, fruits and flowers?
[A] Chlorophyll
[B] Haemoglobin
[C] Anthocyanin
[D] Xanthophyll
Show Answer
Correct Answer: D [Xanthophyll]
Notes:
Xanthophyll is the pigment that provides yellow color to leaves, fruits, and flowers. Here Xanthos stands for yellow, phyllon means leaf.
19. Where are the apical meristems found?
[A] apex
[B] roots
[C] buds
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Apical meristems are found at the apex, or tip, of roots and buds. This allows roots and stems to grow in length and differentiate into leaves and flowers.
20. Which of these carry water into a leaf?
[A] Leaf blade
[B] Veins
[C] Chlorophyll
[D] Roots
Show Answer
Correct Answer: B [Veins ]
Notes:
Veins carry water into a leaf. The veins in leaves are made up of two major tissues xylem and phloem.
