Exam Category
Biology
Showing 866 questions & PYQs organized by topics.
Biology
Human Body
10 Topics
01
What is exhaled in human respiration?
RRB PYQ MCQ
02
During each breathing cycle, when air is taken in and thrown out,…
RRB PYQ MCQ
03
Which one of the following combines with O₂ to provide energy in…
RRB PYQ MCQ
04
Exchange of respiratory gases occurs through _____ in the lungs.
RRB PYQ MCQ
05
What is the function of alveoli?
RRB PYQ MCQ
06
Breathing is harder at high altitudes compared to sea level because _____.
RRB PYQ MCQ
07
Anaerobic respiration occurs in the absence of _____.
RRB PYQ MCQ
08
The maximum amount of air that can be exhaled after maximal inspiration…
RRB PYQ MCQ
09
Which life process converts chemical energy into heat energy?
RRB PYQ MCQ
10
What is the role of cilia in the respiratory tract?
RRB PYQ MCQ