MCQs Biology F.Sc. Part 2 (2nd Year)
Chapter No.15
HomeoStasis
61. Plants excrete:
(A) Excess water
(B) Excess oxygen
(C) Excess carbon dioxide
(D) All
Answer:
(D) All
62. Which one of the following has maximum toxicity?
(A) Ammonia
(B) Urea
(C) Uric acid
(D) Creatinine
Answer:
(A) Ammonia
63. Which one of the following has medium toxicity?
(A) Ammonia
(B) Urea
(C) Uric acid
(D) Water
Answer:
(A) Ammonia
64. Which one of the following has least toxicity?
(A) Ammonia
(b) Urea
(C) Uric acid
(D) All are highly toxic
Answer:
(C) Uric acid
65. Guttation take place through:
(A) Stomata
(C) Lenticels
(b) injured tissue
(d) Hydathodes
Answer:
(d) Hydathodes
