MCQ
The breathing centre initiates the ventilation in response to
- AIncrease of air pressure
- BDecrease of air pressure
- ✓Increase of $CO _{2}$ in arterial blood
- DIncrease of $O_{2}$ in arterial blood
✓
Answer
Correct option: C.
Increase of $CO _{2}$ in arterial blood
c
Breathing centre initiates the ventilation in response to
Breathing centre initiates the ventilation in response to
$(i)$ High $CO _{2}$ in arterial blood
$(ii)$ Less $pH$ in arterial blood
$(iii)$ High $H^{+i i}$ concentration in arterial blood
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Sperms of both Funaria and Pteris were released together near the archegonia of Pteris. Only Pteris sperms enter the archegonia as:
How many $NADH$ and $FADH$ are formed ? when one molecule of citric acid enters to $TCA$ cycle ?
→Frog's kidneys for communication with the coelom has:
The characteristic that is shared by urea, uric acid and ammonia is/are
→$I.$ They are nitrogenous wastes.
$II.$ They all need very large amount of water for excretion.
$III.$ They are all equally toxic.
$IV.$ They are equally in the kidneys.
Chromosomes whose arms are equal are called
Identify the given diagrams and mark the correct option
Root hairs are found
Epigynous flowers means
Vessel elements are absent in:
The reaction of Kreb's cycle take place