(A) Pulmonary artery
(B) Pulmonary vein
(C) Aorta
(D) Superior vena cava
Answer: (C) Aorta
Category: Everyday Science MCQs
Which of the following statement is TRUE for blood group A?
(A) It has antibody A
(B) It has antibody B
(C) It has antigen B
(D) It can donate blood to O group
Answer: (B) It has antibody B
The vitamin involved in the formation of Rhodopsin is:
(A) Vitamin B
(B) Vitamin K
(C) Vitamin A
(D) Vitamin E
Answer: (C) Vitamin A
Closing and opening of Stomata in plants is regulated by:
(A) Sulphur
(B) Phosphorus
(C) Potassium
(D) Calcium
Answer: (C) Potassium
How many molecules of CO2 are produced when Kreb’s cycle operates twice?
(A) 1
(B) 2
(C) 3
(D) 6
Answer: (B) 2