Download App

STD 11 - 17. Locomotion and movement — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 17. Locomotion and movement1 Mark
MCQ
In striated muscle contraction
  • A
    $H - $ band is lengthened
  • ✓
    $H-$ band is obliterated
  • C
    $A - $ band decreases in length
  • D
    $Z - $ line moves away from $A - $ band
✓

Answer

Correct option: B.
$H-$ band is obliterated
b
(b) During isotonic contraction the length of the sarcomere is reduced by the sliding of actin fibres towards the centre of myosin filament, hence  $'H'$ zone disappears.

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 STD 11 - 17. Locomotion and movement→STD 11 - 17. Locomotion and movement — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Stem terdril is not present in
→
During budding the primary septum separating the parent cell and the bud is made up of
→
Which of the following are primary meristems
→
The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:
→
A unicellular organism often considered connecting link between plants and animals is
→
Match column $I$ (Kingdom) with column $II$ (Class) and select the correct options
Column-$I$ (Kingdom) Column-$II$ (Class)
$A.$ Plantae $I$. Archaebacteria
$B$. Fungi $II$. Euglenoids
$C$. Protista $III$. Phycomycetes
$D$. Monera $IV$. Algae
→
Which one of the following is matching pair?
→
The petiole expand and become green to synthesize food in
→
Dimorphism of chloroplast is the specialty of:
→
What is found in a sponge
→