Download App

STD 11 - 7. Structural organisation in animal — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 7. Structural organisation in animal1 Mark
MCQ
Intercalated discs are present in
  • A
    Striated muscles
  • B
    Unstriated muscles
  • ✓
    Cardiac muscles
  • D
    Neurons
✓

Answer

Correct option: C.
Cardiac muscles
c
Intercalated discs are unique and distinguishing feature of cardiac muscle. They are dark, irregular zig-zag partitions between adjacent cardiac muscle cells. They have both transverse and lateral portions. Intercalated disc provide firm adhesions between adjacent cells, electrical coupling for spread of excitation as well as contraction.

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 - 7. Structural organisation in animal→STD 11 - 7. Structural organisation in animal — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which of the following group of kingdom protista is being described in the statements given below?

$(i)$ This group includes diatoms and golden algae.

$(ii)$ They are microscopic and float passively in water currents (plankton).

$(iii)$ Most of them are photosynthetic.

$(iv)$ They have deposits in their habitat; this accumulation over billion of years is referred to as 'diatomaceous earth'.

→
Which of the following stage of meiosis is responsible for deciding genetic constitution of gametes?
→
ECG records:
→
To produce $102$ pollen grains, how many meiotic divisions are required?
→
Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because
→
Which is correct about flower ? It is modified
→
Chlorophyll ‘$a$’ is found in
→
Identify incorrect sentence.
→
Which substance is in higher concentration in blood than in glomerular filtrate?
→
The valves in the heart allows the blood flow in which direction?

$I.$ From atria to ventricles

$II.$ From ventricles to pulmonary artery

$III.$ From pulmonary artery to aorta

Choose the correct option

→