Download App

Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYBreathing and Exchange of Gases1 Mark
MCQ
Asthma is characterised by:
  • ✓
    Spasm in bronchial muscle
  • B
    Alveolar wall degradation
  • C
    Pain in lungs
  • D
    Damage in diaphragm
✓

Answer

Correct option: A.
Spasm in bronchial muscle

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Breathing and Exchange of Gases→Breathing and Exchange of Gases — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
→
In frog, “fenestra ovalis” is:
→
The parallel layering of membranes in chloroplast is suited for
→
Delete odd one.
→
An example of agarophyte is
→
It is correct for importance of meiosis.

$(i)$ It increases the genetic variability in the population of organisms from one generation to the next.

$(ii)$ It decreases genetic variability

$(iii)$ It occurs in all cells of our body.

$(iv)$ Important process of evolution.

→
The natural system of Classification is based on:
→
Mitochondria and chloroplast are

$(A)$ semi­autonomous organelles

$(B)$ formed by division of pre­existing organelles and they contain $DNA$ but lack protein synthesising machinery.

Which one of the following options is correct ?

→
Guttation occurs in:
→
The giant Redwood tree $($Sequoia sempervirens$)$ is $a/ an:$
→