Muscles and Movement

Insect movement is achieved by the help of

• muscles

• endoskeleton

• exoskeleton

• chloroplasts

To ensure movement most muscles work

• alone

• complementary

• antiparallelly

• antagonistically

Name the structure A

Name the structure D

Name the structure F

Sarcolemma is a specialized

• Mitochondrion

• Endoplasmic reticulum

• Cell

• Plasma membrane

The smallest functional unit of muscles is called

• Sarcolemma

• Sarcomere

• Muscle fiber

• myofibrill

The red coloured protein is called

• actin

• myosin

• troponin

• tropmyosin

Troponin needs to bind _____ in order to change tropomyosin conformation

• ATP

• ADP

• calcium ion

• Glucose

The dark lines in striated muscle electron micrographs are called