CAIE A-Level Biology A2 15.1.11 Striated Muscle Ultrastructure Questions

Explain striated muscle ultrastructure using evidence from each question and mark scheme.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • Explain striated muscle ultrastructure.

CAIE A-Level Biology A2 15.1.11 Striated Muscle Ultrastructure Questions question 1

[Maximum number: 2]

Fig. 9.1 is a diagram of a relaxed sarcomere in striated muscle.

Fig. 9.1

Fig. 9.1

On Fig. 9.1, use label lines and letters to label:
- an actin filament with the letter P
- a myosin filament with the letter R.

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